为您找到与高三生物第一单元知识结构相关的共467个结果:
高三期末考试既是本学期复习的检测和反馈,也是对考生自我定位和规划升学路径的重要参考,同时还是考生适应新高考模式的重要机会。以下是小编为大家收集的关于山东省2022-2023学年高三上学期期末语文试题及答案的相关内容,供大家参考!
1、高效的复习,要学会梳理自身学习情况,以课本为基础,结合自己做的笔记、试卷、掌握的薄弱环节、存在的问题等,合理的分配时间,有针对性、具体的去一点一点的去攻克、落实。哪块内容掌握的不好就多花点时间,复习的时候要系统化,不要东一下西一下,最后啥都没复习好。
2、可以学习掌握速读记忆的能力,提高学习复习效率。速读记忆是一种高效的学习、复习方法,其训练原理就在于激活“脑、眼”潜能,培养形成眼脑直映式的阅读、学习方式。速读记忆的练习见《精英特全脑速读记忆训练》,用软件练习,每天一个多小时,一个月的时间,可以把阅读速度提高5、6倍,记忆力、理解力等也会得到相应的提高,最终提高学习、复习效率,取得好成绩。如果你的阅读、学习效率低的话,可以好好的去练习一下。
3、要学会整合知识点。把需要学习的信息、掌握的知识分类,做成思维导图或知识点卡片,会让你的大脑、思维条理清醒,方便记忆、温习、掌握。同时,要学会把新知识和已学知识联系起来,不断糅合、完善你的知识体系。这样能够促进理解,加深记忆。
4、做题的时候要学会反思、归类、整理出对应的解题思路。遇到错的题(粗心做错也好、不会做也罢),最好能把这些错题收集起来,每个科目都建立一个独立的错题集(错题集要归类),当我们进行考前复习的时候,它们是重点复习对象,保证不再同样的问题上再出错、再丢分。
九年级上册英语第一单元主要讲解了语言基本功的学习和掌握,那么九年级上册英语第一单元知识点有哪些呢?以下是小编准备的一些九年级上册英语第一单元知识点,仅供参考。
一.单项选择(20分,每题1分)
i.词语释义(5分,每小题1分)
1.The cup is filled with milk.
A.is covered by B.is full of C.is full with D.is covered with
答案:B
2.Thet seem to be very happy with the actress.
A.satisfied with B.worried about C.pleased D.happy for
答案:A
3.Tom glanced at the watch and ran out of the classroom without saying anything.
A. took a look at B. threw away C. put down D. saw angrily
答案:A
4.The soldier jumped into the cold water to save the boy without hesitation.
A. after he thought about himself B. as soon as he saw him
C. because he realized that the boy was his son D. in order to tell others that he was brave
答案:B
5. My grandpa used to go for a walk after dinner.
A.did something regularly in the past
B.use something to do somthing
C.have experienced something and it has become a habit
答案:A
ii.选择填空(15分,每小题1分)
6.I _____________ whether his statement is true.
A.think B.believe C.doubt D.know
答案:C
7.The hall was ____________ of people.
A.fill B.filled C.full D.fulled
答案:C
8.We can’t work out the physical problem. Can you tell us____________?
A.how to do B.what to do it C.how to do it D.what should to do
答案:C
9.—The box is too heavy to carry. What’s in it?
—Oh, it is ____________books.
A.filled with B.covered with C.used for D.asked for
答案:A
10.___________ a beautiful car!I’ve never seen it before.
A.What B.Which C.How D.Whether
答案:A
11.She is from England, ____________she?
A.isn’t B.won’t C.hasn’t D.doesn’t
答案:A
12.—Could I use your bike today?
—________________.I’m not using it.
A.Sure,go ahead B.I have no idea C.No,you can’t D.Never mind
答案:A
13.—What else do you need for your trip?
—__________.I’ve packed everything.
A.Something else B.Else everything C.Nothing else D.Else nothing
答案:C
14.—Why don’t you go out to play?
—I’m afraid I can’t. I have much homework___________.
A.do B.does C.doing D.to do
答案:D
15.—Your sweater looks very nice. What’s it made________?
—Wool.
A.by B.of C.from D.in
答案:B
16.—___________weather it is!
—Yes, we can’t go boating on the Xuanwu lake.
A.What good B.How good C.How bad D.What bad
答案:D
17.Tom had his 15th birthday party last night, ___________?
A.didn’t he B.did he C.hadn’t he D.was he
答案:A
解析:反意疑问句。主句是肯定句式,所以反意疑问句要用否定,并且借助助动词did.
18.I don’t think the newly-directed film by Zhaowei is as interesting as people say, _______?
A. do you B. isn’t it C. is it D. don’t you
答案:C
19.—__________ does your new friend look like?
—He is tall with short blonde hair and big blue eyes.
A. How B. What C. Who D. Where
答案:B
20.—Jim had nothing for breakfast this morning, _______?
—______. He got up too late.
A. had she; Yes B. hadn’t he; Yes C. did he; No
答案:C
二.完形填空(10分,每小题1分)
One day a poor man was traveling on horseback. At noon, he tied his horse to a tree and
then 1 to eat something. A few minutes later, a rich man came along and tied his horse to
the same tree.
“Please tie your horse to another tree,” said the poor man.“My horse is wild(野蛮的). It will kill yours.”
2 the rich man said,“I shall tie my horse as I like!” he tied up his horse and had his
lunch nearby. After a moment they heard a terrible 3 , the two horses were fighting. They went up to them, but it was too 4 . The rich man‘s horse was killed. “See what you horse
has done!”cried the rich man. “You will have to 5 it.”And he brought the poor man before Mr. Know.
Mr. Know asked the poor man some questions. But he made no 6 . At last Mr. Know said,
“This man is dumb(哑的). He cannot speak.”
“Oh,” the rich man shouted 7 .“He can! He spoke to me when I met him.”
“Are you sure?” asked Mr. Know.“What did he 8 ?”
“He told me not to tie my horse to the same tree because his horse was wild and would
kill my horse.”
“Oh,” said Mr. Know.“So he 9 you. Then can you expect to get money 10 him? ”
The rich man said nothing and left silently.
( )1. A. put down B. set down C. sat down D. turned down
( )2. A. So B. But C. And D. Though
( )3. A. song B. word C. bell D. noise
( )4. A. late B. slow C. hard D. quick
( )5. A. pay for B. look for C. wait for D. care for
( )6. A. idea B. mistake C. money D. answer
( )7. A. quietly B. angrily C. happily D. heavily
( )8. A. speak B. tell C. talk D. say
( )9. A. helped B. thanked C. warned D. ordered
( )10.A. for B. from C. with D. about
答案:1-5 C B D A A 6-10 D B D C B
三.阅读理解(35分,每小题1分)
i. 阅读下列短文,从每小题的A、B、C、D四个选项中选择最佳答案(25分,每小题1分)
A
Rachel felt sad as she walked to the school bus stop. Her neighborhood looked like a junkyard. There was a lot of rubbish on the road. The front door to Lee‘s Grocery was covered with ugly graffiti(涂鸦).
Yuck! Rachel said as she brought her foot back to kick (踢) an empty bottle off. Then she changed her mind, picked the bottle up and threw it into a rubbish basket on the corner. She hurried to meet her friends at the bus stop.
Mr Lee felt sad as he looked out of his grocery store window. Hmph, he said as the girl passed by. She‘s perhaps another troublemaker, he thought. One of those kids painted graffiti all over my door. Kids today are just no good. What the girl did next, though, surprised him. She picked up the bottle and dropped it into a rubbish basket.
That‘s a switch, thought Mr Lee. All morning he kept picturing that girl. At noon, when he walked to the corner to mail a letter, he saw the rubbish that was in front of his store. He thought of that girl again, then got a broom and started sweeping(打扫) the walk.
( ) 1. Where would Rachel go when she saw the empty bottle?
A. To school. B. To a party. C. To hospital. D. To her grandma‘s.
( ) 2. What might be the reason that Mr Lee started sweeping the walk?
A. His wife asked him to do so.
B. He saw Rachel placing a bottle into the rubbish basket.
C. He wanted more people to buy things in his store.
D. He heard other people say something bad about his store.
( ) 3. Who might learn most from reading this story?
A. Someone who wants to buy some nice trees. .
B. Someone who wants to get along with a bad neighbor.
C. Someone who wants to plant a flower garden.
D. Someone who wants to make a difference in the neighborhood.
( ) 4. What does the underlined word trouble-maker mean in Chinese?
A. 幸运者 B. 送货人 C. 捣乱者 D. 顾客
( ) 5. What is this story mostly about?
A. How a group of people learn to be friends.
B. A neighborhood that learns to reuse bottles.
C. How one person‘s actions (行动) can make others change.
D. Neighbors working together to do their spring cleaning.
答案:1-5 A B D C C
B
Do you get angry when someone stands too close to you or talks too loudly?
Many of us do. What makes us feel uncomfortable about these people? Perhaps it‘s about
personal space.
Some scientists say that humans need a distance between themselves and strangers.
Personal space means not only space around the body, but around the senses (感官). People may feel uncomfortable when with sounds, smells or for some people don‘t like
the sound of a man shouting into a mobile phone in a shop. Or maybe they don‘t like sitting next to a woman on a bus with a lot of perfume (香水) on.
While people like to protect their personal space, they may not know they are doing it.
Manypeople hold newspapers in front of them on the subway. Perhaps they are using the newspaper to separate (分离) themselves from other people.
How much people care about personal space is different from culture to culture.Some
scientists say that people in the US need more personal space than people in other countries.
But in Latin cultures, people are more comfortable standing close to each other.
( )6. What does the passage mainly tell us about?
A. How to get angry. B. Personal space.
C. Different cultures. D. Understanding each other.
( )7. Which of the following statements is true, according to the scientists?
A. People in the US need the most personal space.
B. In Latin cultures, people feel uncomfortable if others get very close to them.
C. Personal space only means space around the body.
D. People are always aware that they are protecting their personal space.
( )8. Which of the following is NOT an example of behavior that hurts personal space in the
story?
A. Talking loudly into a mobile phone. B. Wearing dirty clothes at a party.
C. Wearing too much perfume. D. Standing too close to somebody.
( )9. According to the scientists, if people hold a newspaper closely, they ______.
A. just want to read it.
B. are probably thinking about some problem.
C. are probably protecting their personal space, but don’t realize it.
D. probably like reading very much.
( )10.According to this passage, people will feel uncomfortable _____________.
A. when someone stands too close to you.
B. when with certain sounds
C. when with certain smells or looks
D. all the above.
答案:6-10 B A B C D
C
On December 14, 1911, Norwegian scientist Amundsen and his four team members became the first people to reach the South Pole (南极).On Wednesday, exactly 100 years later, Norway‘s prime ministers remembered them with scientists at the bottom of the South Pole.
In the early 1900s, there was a race to see who could get to the South Pole first. Amundsen beat British scientist Scott by five weeks. On March 8, 1912, after learning of Amundsen‘s success, The New York Times wrote, A new world has now been discovered.
After learning that American scientist Robert had reached the North Pole first in April 1909, Amundsen made secret plans for a trip to the South Pole.
On October 19, 1911, Amundsen set out with 52 dogs. His success was helped by careful planning. And his dogs also helped. Amundsen and his four team members, together along with 11 dogs, made it back on January 25, 1912. Their trip was quicker than expected(期待).
Antarctica(南极洲), is a place for many science projects. It holds many clues(线索) to the earth‘s past and future changes. Especially there are many things about weather change.
( ) 11. How many dogs died during the trip?
A. 63. B. 52. C. 41. D. 11.
( ) 12. What made Amundsen decide to travel to the South Pole?
A. The fact that Robert bad reached the North Pole. B. His dream.
C. A book. D. A story.
( ) 13. What helped him succeed?
A. Careful planning and his dogs. B. Norway‘s prime minister.
C. Good weather. D. Many clues in Antarctica.
( ) 14. What can we learn best in Antarctica?
A. Mountain change. B. River change. C. Forest change. D. Weather change.
( ) 15. The passage is mainly about ______.
A. the earth‘s past and future B. a great scientist who reached the South Pole
C. special Antarctica D. Norway‘s prime minister
答案:11-15 C A A D B
D
IN Journey to the West (《西游记》), the Monkey King often turns into a bug (虫子) and watches monsters. Today, scientists are trying to turn the story into reality by making
robt bugs.
Robot bugs are small robots that look like bugs. People can use them to take pictures
in dangerousareas, follow suspects(嫌犯),or help find survivors in broken buildings.Work on robotic bugs started after World War II. But today they are more advanced.
Harvard University scientists have made a very small robot that looks like a fly. It weighs
just 65 milligrams, or a little more than the plastic head of a push pin (大头钉). The robot needs a wire (电线) to get power.
Japanese scientists don‘t need wires for their robots. They have made very small ones
that look like moths (蛾). People control the robots by radio.
Scientists are trying to turn real bugs into robots. US scientists have put computer chips
(芯片) into moths so people can control them.
But sometimes these robots get into danger. Birds can eat them. Other times they can get
caught in spiders‘ webs (网).
( )16. The passage mainly tells us about_______.
A. making robot bugs B. robot bugs
C. what robot bugs look like D. what robot bugs can do
( )17. The robot which was made by Harvard University scientists is like ______.
A. a fly B. a dragonfly C. a moth D. a butterfly
( )18. These robot bugs have many advantages except_____.
A. they can be used to take pictures in dangerous areas
B. they can follow suspects
C. they can be eaten by birds
D. they can help find survivors in destroyed buildings
( )19. In the future people will be able to control a real moth ______.
A. using a wire B. with a radio C. using a telephone D. with a computer chip
( )20. According to the passage which statement is true?
A. US scientists have made a very small robot that looks like a moth.
B. Japanese scientists have made very small robots that look like flies.
C. The robot fly can only fly when it is connected to a power wire.
D. Scientists began to work on the robot bugs after World War I.
答案:16-20 B A C D C
E
Anuska‘s first day in Seattle was tiring. Her father had arrived several days earlier to begin moving boxes. He met Anuska and her mother at the airport and drove them to their new apartment. The family spent the day unpacking boxes.
Anuska was tired, but she wanted to see more of Seattle. Her parents said that they would go out and explore(探索) Seattle the next day.
Anuska and her mother went out of the front door for a rest. Then Anuska heard a voice.
Hello. You must be new here. Anuska turned to see a girl smiling at her. Yes, she said. We just moved here this morning.
My name is Tisha. I live next door.
I‘m Anuska. We moved here from Alaska.
Alaska? Wow, I‘ve never met anybody from Alaska, said Tisha.
What school are you going to?
My mom says I‘m going to that school. .
That‘s my school, Tisha replied. Maybe we‘ll be in the same class.
Anuska smiled. It would be nice to start school and already know someone.
Tisha‘s eyes suddenly got wide. Have you ever been to an aquarium(水族馆)?
Anuska shook her head.
They have all kinds of sea animals there. I‘m going with my older brother tomorrow. Do you and your parents want to come with us?
Anuska looked at her mother.
I think that‘s a good idea, her mother said. We should go out and see some of Seattle. This is a good chance.
( ) 21. How did Anuska and her mother go to Seattle?
A. By car. B. By bus. C. By train. D. By air.
( ) 22. How did Anuska and her parents spend their first day in Seattle?
A. Meeting Tisha‘s family. B. Looking for a new school.
C. Unpacking boxes. D. Walking through the city.
( ) 23. What will Anuska do tomorrow?
A. Go back to Alaska. B. Go to her new school.
C. Go to see fishes. D. Go to visit Tisha.
( ) 24. Which word best describes Tisha?
A. Worried. B. Shy. C. Serious. D. Welcoming.
( ) 25. What‘s the best title for the passage?
A. Anuska‘s first day in Seattle. B. Anuska‘s new neighbor.
C. Anuska‘s mother. D. Anuska‘s family exploring Seattle.
答案:21-25 D C C D B
ii. 选择下列单词或者短语完成对话。(5分,每小题1分)
( A student and a teacher are talking )
A: Excuse me, could you give me some (1)___________?
B: Sure. What do you want to know?
A: How can I (2)_________ my English?
B: It might be a good idea if you practice (3)_________ English as much as you can.
A: Not a bad idea!
B: And if I were you, I‘d like to (4)__________ the English radio programs every day.
A: OK, I‘ll try.
B: If you (5)_________ any help, please come to ask me anytime.
A: Thanks. I will.
B: You‘re welcome.
1._________ 2. __________ 3.__________ 4._________ 5. _________
答案:1.advice 2.improve 3.speaking 4.listen to 5.need
iii. 选择下列选项完成下面对话。(5分,每小题1分)
A: Hi, Mike. Would you like to help save the environment?
B: Of course, I would like to. But what should I do firstly?
A: Well. (1) _________
B: Yes, it‘s a piece of cake. Sometimes I turn off the lights without thinking. What‘s next?
A: Secondly, you can ride a bicycle. (2) __________
B: That will save money, too. What else?
A: Thirdly, try to recycle(回收) paper.
B: Mm. Newspapers, magazines, mail ... (3) __________ Good idea.
A: The fourth idea is turning off the shower when you are not using it.
B: You mean when I have shampoo in my hair?
A: Yes. Get wet, (4) _________, put the shampoo in your hair and then turn on the shower and wash it out.
B: Will that help the environment?
A: Yes, we have to save water. And fifthly, take a bag when you go shopping. (5) __________
B: OK. My parents do most of the shopping. I‘ll tell them.
答案:1.A 2.D 3.F 4.G 5.B
四. 用所给词汇的适当形式填空。(10分,每小题1分)
1.I’m looking forward to the O___________ Games.
2.According to an __________(古老的)Chinese legend, the emperor Shen Nong discovered tea.
3.Would you like ___________( sell ) the ticket to me?
4.The fields around us looked like a ________(gold) sea.
5.—How do you study English?
—By __________ ( ask ) teachers for help.
6.I think the way we say something is____________( important ) than the thing we say.
7.Can you give me some____________ ( advise ) ?
8. You’ll ____________(解决)the problem if you concentrate on it.
9. What he did is to make a good ______________ (impress) on his boss.
10. We must find out the ___________(true)of the matter
答案:1.Olympic 2.ancient 3.to sell 4.golden 5.asking
6.more important 7.advise 8.solve 9.impression 10.truth
五. 书面表达(10分)
假如你是Jim. 你的朋友Simon 邀请你参加本周六的同学聚会,但你因为要去医院照顾生病的母亲而无法前往。请给Simon回复。要求:条理清楚,格式正确。日期为9月11日。
在日常的学习中,大家最熟悉的就是知识点吧?那么关于五年级上册数学第一单元知识点怎么学习呢?以下是小编准备的一些小学五年级上册数学第一单元知识点,仅供参考。
一、计算。
2.5×4= 2.4×0.01= 8×0.24= 3.9×1.3=
3.2×0.16= 8×0.125= 4.2×3.5= 0.27×3=
0.85×72= 1.6×4.6= 8.9×4= 2.98×3.2=
二、填空。
1、3.5×9表示( )
2、根据 46×15=690,直接写出下面各题的结果。
4.6×15=
0.46×0.15=
4.6×1.5=
3、0.8+0.8+0.8+0.8用乘法算式表示是( )
4、一个三位小数,保留两位小数是 1.50,这个三位小数最大 ( ),最小( )。
5、13.65扩大( )倍是1365;6.6缩小( )倍是0.066
6、把7.4343434343……用简便方法写出来是( ),保留两位小数是( )。
7、把7.1687保留整数约是( ),精确到千分位约是( )。
8、4.09×0.05的积有( )小数,5.2×4.76的积有( )位小数。
三、在○里填上“>”“<”或“=”。
0.3×1.2○0.3 0.5×1.8○1.8 0.3×0.2○0.3
1.5×1.8○1.8 0.3×1○0.3 1×1.2○1.2
42.85×1.15○42.85 69.4×0.9898○69.4
8.95×1.0001○8.95 148.8×0.91○148.8
四、脱式计算(能简算的.要用简算)
12.5×0.4×2.5×8 9.5×101
4.2×7.8+2.2×4.2 0.87×3.16+4.64
五、列式计算
1、1.25乘4.2减5,差是多少?
2、比4.7的1.5倍多3.05的数是多少?
3、商店运进14筐苹果,每筐35.8千克,卖掉了400千克,还剩下多少千克?
4、甲车和乙车同时从两地相对开出,8小时后相遇,甲车每小时行80千米,乙车的速度是甲车的1.02倍,两地相距多少千米?
在日复一日的学习中,说起知识点,应该没有人不熟悉吧?那么关于三年级数学第一单元知识点有哪些呢?以下是小编准备的一些三年级上学期数学第一单元知识点,仅供参考。
长度单位
1厘米=10毫米
1分米=10厘米 1分米=100毫米
1米=10分米 1米=100厘米 1米=1000毫米
1千米=1000米 1千米=10000分米
1千米=100000厘米 1千米=1000000毫米
质量单位
1吨=1000千克
1千克=1000克
1千 克 =1公斤
减法
1.被减数—减数=差
2.减数=被减数—差
3.被减数=差+减数
加法
1.加数+加数=和
2.加数=和—加数
万以内加减法
加数+加数=和
和 - 1个加数=另1个加数
被减数-减数=差
被减数-差=减数
差+减数=被减数
三位数笔算加减法:相同数位对整齐,从个位算起。
加法的验算
1.交换加数的位置,和不变。
2.用和减去一个加数等于另一个加数。
减法的验算
1.用差加减数等于被减数。
四边形
四边形的特点:
1.四条直的边
2.四个角
3.封闭图形
平行四边形特点:
1对边相等
2.对角相等
3.容易变形
周长的定义:封闭图形一周的长度。
长方形的周长=长+宽+长+宽=(长+宽)×2
正方形的周长=边长×4
边长公式:长方形的长=周长÷2-宽
长方形的宽=周长÷2-长
有余数
有余数的除法:余数总比除数小
被除数=除数×商+余数
商=(被除数-余数)÷除数
除数=(被除数-余数)÷商
无余数:被除数=除数×商
商=被除数÷除数
除数=被除数÷商
时分秒:
1世纪=100年
1年=12月
1日=24时
1时=60分
1分=60秒
1时=3600秒
大月(31天)有:1、3、5、7、8、10、12月
小月(30天)有:4、6、9、11月
平年2月28天,闰年2月29天;平年全年365天,闰年全366天,四年一次闰年。
0乘任何数都得0
因数×因数=积
积÷1个因数=另1个因数
分数
分数的意义:把一个物体平均分成几份,其中的几份
分母的意义:把一个物体平均分成几份
分子的意义:其中的几份
分数比较大小:
分子相同,分母越小分数越大;
分母相同,分子越大分数越大。
分数的简单计算:分母不变,分子相加减。
有很多同学在复习中考生物时效率不高,那么关于中考生物的知识点有哪些呢?以下是小编准备的一些关于中考生物的知识点归纳总结,仅供参考。
一、审题
提倡"勾勾划划,手眼脑齐动",在题目中划出关键词,联系教材知识点,题目设问要求,分析问题,理清解题思路,找出答案。
戒绝先入为主、想当然、惯性思维等不良习惯。
二、答案
1.选择题尽量使用排除法确定答案,对于拿不准的选项,注意:
(1)相信第一印象;
(2)带绝对意思的选项一般不对。
2.非选择题答案:
尽量使用专业术语;
首选教材原文,次用题目原文,最后自编语言;
语句通顺,条理清楚,意思完整;
一般应注意根据所给横线长短确定答案字数;
答案应写在指定位置;
字迹清楚整齐,注意错别字。
三、考试特别注意
(1)先全面浏览试卷,对题目数量、难度心中有数;
(2)答题顺序从前到后,先易后难;
(3)碰到难题不纠缠,其它题目做完后再集中力量攻克之,以保证该拿的分数全部拿到;
(4)没有绝对的把握不要改变第一答案。
高三期末考试既是本学期复习的检测和反馈,也是对考生自我定位和规划升学路径的重要参考,同时还是考生适应新高考模式的重要机会。以下是小编为大家收集的关于山东省2022-2023学年高三上学期期末语文试题及答案的相关内容,供大家参考!
温馨提示:查看完整版及各省份高考试卷真题,可下载全文查看或微信搜索公众号【5068教学资料】,关注后在对话框回复【高考真题】即可免费获取。
生物被誉为“理科中的文科”,很多知识点是需要考生记忆的。那么高考生物知识点归纳总结有哪些呢?以下是小编准备的一些2024高考生物知识点归纳总结,仅供参考。
(1)先易后难
高考生物解题要按先易后难的顺序进行,不能碰列难题就抓住不放,更不可一开始考试就专挑难题入手。
(2)胆大心细
所谓“胆大”,就是‘定要有坚定的信心,激起自己的斗志,全力以赴。“心细”就是指答题过程一定要仔细,从审题到思考到落笔,都必须细心周到。避免因粗心而导致失分。
(3)科学作答
①答高考生物题时尽量用生物学的专用术语,而且要用得准确。要尽量使用规范化的学科语言。
②尽量用生物课本用语进行表述。对说明性的表达,常常可以落脚到课本上的结论性叙述上。比如,根对水分和矿质离子的吸收是两个相对独立的过程;细胞是‘一个统一的整体;生态系统具有一定的自我调节能力;
③话要说完整。要使别人能看明白,而不仅仅是自己心中知道。
④生物答案要准确,要做列层次清晰、条理清笔、逻辑严谨。答案宜简洁明了,切不可重复哆唆,以免造成不必要的丢分。要紧扣基本观点。
相信很多的高考生会关心高考生物必考的知识点,那么高考生物知识点及公式有哪些呢?以下是小编准备的一些高考生物知识点及公式大全,仅供参考。
(1)努力搜寻教材相关知识。
根据题目考查的知识点,努力搜寻教材相关内容是解题的关键。答题一定要有依据,很多信息题背景虽新,但考查的知识点却落脚于教材,所以,一定要用好题目中的一些关键词,努力转化成教材中学过的知识而进行破题。
(2)认真分析选择题干和选项的逻辑关系。
生物之所以是理科,是因为它具备严密的逻辑推理性。因此,答题时一定要认真思考推理,进而得出正确答案。
(3)掌握一些常用的答题小技巧。
近几年高考生物选择题中,涉及“正确的是”、“不正确的是”、“错误的是”的试题约占一半。所以,我们一定要好好利用好“错误原理”,这类题目才能迎刃而解。
七年级生物需要学习生物圈知识点。下面是为大家整理的七年级生物了解生物圈知识点,喜欢可以收藏分享。
地球上所有的生物与其环境的总和就是生物圈的定义。
生物圈里生活环境的定义是生物的生存空间和周围的影响因素。
生态因素指的是环境中影响生物生活和分布的因素。
生态因素有非生物因素和生物因素两种分类。
阳光、空气、温度、水、土壤性质等是非生物因素。
影响某种生物生活的其他生物是生物因素。
捕食关系、竞争关系、合作关系、寄生关系等形成生物与生物之间的关系。
生物与环境之间的关系是生物能适应环境,也能影响和改变环境。非生物的无机自然环境和其他生物都是生物生存的环境。在环境中生存的生物,为生物的生存提供物质和能量的是环境,以及栖息场所。生物之间的关系包括种间关系和种内关系,既互助也斗争。
生态系统指的是生物与环境在一定的空间范围内所形成的统一整体。
生态系统中非生物部分包含阳光、空气、水、温度、土壤等。将生态系统中的每个环节中的所有生物分别称重的话,重量最重的应该是生产者。
生态系统中,生物种类和数量越多,食物链和食物网越复杂,自动调节能力越强,森林生态系统就比草原生态系统自动调节能力强。
生物圈范围是以海平面来划分的,向上10千米,向下10千米,共20千米。大气圈的底部,水圈的大部和岩石圈的表面都囊括其中。可飞翔的鸟类、昆虫、细菌等一般生活在大气圈的底部,距海平面150米内的水层是水圈的大部,一切陆生生物的“立足点”在于岩石圈的表面。
七年级生物需要使用显微镜。下面是为大家整理的七年级生物练习使用显微镜方法,喜欢可以收藏分享。
七年级生物练习使用显微镜首先要了解显微镜的构造。
显微镜的镜座一般是稳定镜身。镜柱是为了支撑显微镜镜柱以上的部分。显微镜的镜臂就是大家握镜的部位。显微镜放置玻片标本的地方就叫载物台。载物台的中央有通光孔,两旁各有一个用于固定所观察的物体的压片夹。遮光器上面有大小不等的圆孔叫光圈,每个光圈都能对准通光孔,可以用来调节光线的强弱。
显微镜的反光镜是可以转动的,能让光线经过通光孔反射上来。反光镜两面是不同的,在光强的时候使用平面镜,在光弱的时候使用凹面镜。
显微镜的镜筒的上端装目镜,下端有转换器,在转换器上装物镜,后方有准焦螺旋。
准焦螺旋有粗准焦螺旋和细准焦螺旋。
粗准焦螺旋:
在转动的时候,镜筒升降的幅度大。
细准焦螺旋:
在转动的时候,镜筒升降的幅度很小。
接下来我们介绍一下显微镜的使用。先取镜和安放,再对光,再观察,最后收镜装箱。
从目镜内看到的物像是倒像,观察到的物像是与实际图像相反的。在这里要注意的是,玻片的移动方向和视野中物象的移动方向也是相反。
放大的倍数越大,观察的物像越大,但观察的视野范围就越小,观察到数目越少。物镜倍数乘目镜倍数就是放大倍数。
观察的生物标本要想放在显微镜下应该薄而透明,光线能透过,才能观察清楚。因此要制成玻片标本,切片、涂片、装片都是常用的玻片标本,大家要注意三者的区别,有临时和永久之分。英国物理学家罗伯特虎克通过观察软木薄片发现了细胞。
高年级数学中相当一局部其实在低年级时曾经学过。所以学好低年级数学知识点很重要,以下是小编准备的一些二年级上册数学第七单元知识点,仅供参考。
一、填空。(48分)
1.2时=( )分2分=( )秒180分=( )时120秒=()分
2.在“○”里填上“>”、“<”或“=”
5分○50秒4时○300分200秒○4分 400分○6时80分○100分
3.在( )里填上合适的时间单位
(1)一节课的时间是40( ) (2)看一场电影要2( )
(3)小明跑100米要用16( )(4)工人叔叔每天要工作8( )
(5)张勤洗两块手帕要用10( )
4.看钟面填空
二、判断题(对的在括号里打“√”,错的打“×”)(10分)
1.分针走一圈经过的时间是60秒.( )
2.时针走一圈经过的时间是12小时.()
3.秒针从钟面上的一个数字走到下一个数字,经过的时间是5秒.( )
4.分针从钟面上的2走到7,中间经过了35分.( )
5.妈妈上午7:30上班,11:30下班,她上午工作了4小时.( )
三、选择题(把正确答案的`字母填在括号里)(10分)
1.分针从一个数字走到下一个数字,经过的时间是().
A.1分钟 B.5分钟 C.1小时
2.秒针走一圈经过的时间是( ).
A.1秒 B.1分 C.1小时
3.第一节课在8时15分上课,8时50分下课.这节课上了( ).
A.半小时 B.35分 C.40分
4.工人小李和小王各做24个零件,小王用了6小时,小李用了8小时.( )
A.做的一样快 B.小王做的快 C.小李做的快
在平时的学习中,大家都接触过知识点吧,那么关于人教版二年级上册数学第六单元知识点有哪些呢?以下是小编准备的一些人教版二年级上册数学第六单元知识点,仅供参考。
一、直接写得数。
36÷9=10÷2=28÷7=32÷4=
18÷6= 45÷9= 48÷6= 32÷8=
20÷5= 15÷3= 30÷6= 16÷4=
7×()=35 ()×6=24 8×()=56 20÷()=5
二、填空题。
1. 47与33的和,除以16,求商,列式为()。
2. 750减去25的差,乘20,求积,列式为()。
3. 养鸡专业户卖出公鸡98只,还有公鸡87只,母鸡的只数是原有公鸡的5倍,求养鸡专业户有母鸡多少只,列式为()。
4. 3个工人4小时一共加工288个零件,每个工人每小时能加工多少个零件?
288÷3=96(个)表示( )。
288÷4=72(个) 表示( )。
288÷3÷4=24(个)表示( )。
2.根据乘法口诀写出两道乘法算式和两道除法算式。
二七十四七八五十六一九得九
?
?
?
?
3.在里填上“+”“-”“×”或“÷”。
78=56168=266=076=13
279=155 43=497 189=167
三、解决问题。
1.30个,每5个穿成一串,可以穿成几串?
2.一本书共有42页,小红每天看5页,8天能看完这本书吗?
3.24条金鱼,每4条放入一个鱼缸,需要几个鱼缸?
4.跳绳的'有多少人?
5.鸡的只数是鸭的几倍?
6.小明到商店里买铅笔。他想买7支铅笔,付2元够吗?
7.
(1)天天买3管牙膏需要多少元?如果用这些钱买香皂能买几块?
(2)小红买2条毛巾需要多少元?她带了20元,应找回多少元?
(3)小芳带了50元够买7个茶杯吗?
8.小明家养的鸡和鸭一共有45只,鸡的只数是鸭的4倍。鸡和鸭各有多少只?
四、计算题。
1. 直接写出得数。
40+80×5= 6×8-24=
11×6×100= 70÷2+84=
654-0÷78= 900÷3×2=
59-(18+5)= 220-20×5=
54×20÷27×0= 12×3÷12×3=
125×8×0= 0×45÷9×123=
数学要想学得好,知识点必须背得溜!那么关于二年级上册数学第三单元知识点有哪些呢?以下是小编准备的一些二年级上册数学第三单元知识点,仅供参考。
一、看谁都能算对(9分)
6+60= 20+9= 90-8= 40-7= 75-5= 89-30= 93-60= 20+80= 82-37=
二、用竖式计算(21分)
61+39= 8+29= 82-28= 40-13=
27+10+32= 40-13-19= 28+(45-19)=
三、在○里填上“>”“<”或“=”。(8分)
73-28 ○ 50 82 ○ 65+17 65-8 ○ 63 28+72 ○ 99
1米 ○ 100厘米 70厘米 ○ 1米 2米 ○ 20厘米 7米 ○ 500厘米
四、填空。(14分)
1、要知道物体的长度,可以用( )来量。
2、量一个物体长度,一般把尺的( )刻度对准物体左端。
3、小明身高120( ), 黑板长4( )。
4、一个角有( )个顶点,( )条边。
5、一块三角板中,有( )个角,其中有( )个直角。
6、写出下面角的各部分名称。
五、计算(4分)
23厘米+7厘米=( )厘米 5米+67米=( )米
80厘米-7厘米=( )厘米 1米-20厘米=( )厘米
六、画一画。(10分)
1、画一个直角。 2、画一个比直角小的角。
七、解决问题。(30分)
1、黑猫有75只,白猫有18只,白猫比黑猫少多少只?(3分)
2、一本故事书有70页,小明还有28页没有看,小明已经看了多少页?(3分)
3、植树节栽树,已经栽了38棵,还有24棵没有栽,一共要栽多少棵树?(3分)
4、红花有28朵,黄花有72朵,黄花比红花多多少朵?(3分)
5、 花猫有36只 白猫有29只 小狗比花猫少8只 兔子有18只
(1)花猫和白猫一共有多少只? (3分)
(2) 小狗有多少只?(3分)
(3)白猫比兔子多多少只?(3分)
(4)花猫和白猫的只数比兔子多多少只?(3分)
(5)请你提出一个数学问题并解答。(6分)
大家有没有开始学习了呢,如果还没有,现在就要抓紧时间开始了,那么二年级上册数学第二单元知识点有哪些呢?以下是小编准备的一些人教版二年级上册数学第二单元知识点,仅供参考。
一、填空:
1、笔算两位数加、减两位数时,都要把( )对齐,从( )算起。
2、从74里面连续减7,分别得( )( )( )( )( )。
3、小刚买一支17元的笔和38元的'书包,他带了50元钱,请你帮他估算一下,够吗?( )
4、最小的两位数和最大的两位数的差是( )。
5、在做加法题时,个位满( ),向前一位进( )。
6、在做减法题时,个位不够减时,要从( )位借1当( )来减。
7、一个数加15得47,这个数是( ),一个数减19得37,这个数是( )。
8、刚刚有45本书,丹丹给他14本以后,两人的书就一样多了,丹丹原来有( )本。
9、加法混合运算按( )的顺序进行计算,遇到带括号的,要先算( )里面的。
二、选择题:
1、下面算式中,( )与37+15的计算结果相同。
A、32+15 B、37+17 C、47+5
2、苹果有32个,梨比苹果多9个,苹果和梨一共有( )个。
A、73 B、57 C、41
3、动物园里有15只老虎,25只大猴子,17只小猴子,动物园里一共有( )只猴子。
A、8 B、57 C、42 D、32
4、二年级有26名男生和25名女生,把50本练习本分给他们每人一本,够分吗?( )
A、够 B、不够 C、不确定
三、按要求填空。
(1)比较大小。
32+7( )26 43+4( )4+34 55+16( )22+4
6+30( )76-30 73-27( )60-16 54+4( )60
(2)括号里最大能填几? 30+48>( ) 88-32>( )
(3)括号里最小能填几? 73-54<( ) 16+30<( )
四、列竖式计算。
47+39= 20+41= 77-29= 90-24=
25+38+19= 90-32-27= 63-(13+31)= 32+(49-21)=
五、解决实际问题:
1、48与37的和比56多多少? 减数是34,差是47,被减数是多少?
2、汽车:25元 小熊:28元 小飞机:45元 布娃娃:19元
(1)买一辆汽车和一个布娃娃,一共需要多少钱?
(2)小丽带70元钱,她想买一架小飞机和一个小熊,钱够吗?
3、一年一班种花43盆,一年二班比一年一班多种花7盆,两个班一共种花多少盆?
4、一年级植树52棵,二年级比一年级少植9棵,两个年级一共植树多少棵?
5、同学们排队,从前往后数,小明排在第23位,从后往前数,小明排在第31位,这一队人一共有多少人?
1、 小明有45本图书,小丽有39本图书,小刚的图书比他们两个人的和少25本,小刚有多少本图书?
7、衣服:45元 裤子:63元 裙子:比衣服贵23元 鞋:比裤子便宜12元
(1)一条裙子多少元? (2)一双鞋多少元?
(3)一件衣服比一条裤子便宜多少元?
(4)自己提出一个数学问题并解答。
8、小玲今年9岁,奶奶比小玲大62岁,妈妈比奶奶少35岁,妈妈今年多少岁?
9、小华有一书本94页的书,第一天看了28页,第二天看了9页,还有多少页没有看?
10、一年级有男生28人,女生比男生少7人,一年级一共有多少人?
11、商店有75件衣服,卖了25件以后,又运来了18件,商店现在有多少件衣服?
12、有100个西瓜,爷爷运走45个,奶奶运走28个,还剩多少个?(两种方法计算)
方法一: 方法二:
13、一捆电线长100米,一班先用去23米,又用去27米,一共用去了多少米?二班需要40米,剩下的电线够不够?
14、教育
育大楼高38米,文化大楼比教育大楼高15米,科技大楼比文化大楼还要高8米,科技大楼高多少米?
15、东东下了86个蛋,西西比东东多下了19个,西西下了多少个蛋?
16、我国发射的神舟七号宇宙飞船围地球飞行了42圈,神舟六号比七号多飞行了38圈,但神舟七号坐了3名航天员。神舟六号飞行了多少圈?
你还能提出什么问题?
17、育才小学有24名男教师,38名女教师,育才小学一共有多少名教师?蓝天小学有45名教师,比育才小学少多少名?
18、小红做了25朵花,小丽还要做38朵,一共要做多少朵?如果再做44朵黄花,黄花和红花一共要做多少朵?
19、二年一班有26幅画,二年二班有38幅画,已经贴好了42幅,还剩多少幅没贴好?
20、商场搞活动:满50元减10元。
娃娃:28元 小熊:15元 汽车:26元 积木:24元 飞机:35元
(1)买一个娃娃和一个小熊要花多少钱?
(2)买一辆汽车和一盒积木能省10元吗?
(3)你还能提出其他数学问题并解答吗?
英语学科对于学生来说是比较难的一个科目,那么九年级上册英语第八单元知识点有哪些呢?以下是小编准备的一些人教版九年级上册英语第八单元知识点,仅供参考。
笔试部分(共95分)
I. 单项填空(每小题1分,共15分)
( )26.----Where is Beth ? ----She to her hometown .
A. has gone B. has been C. went D. have gone
( )27. –Could you tell me Fairmont ? ---The day after tomorrow . I think.
A. when will you visit B. when you will visit C. when would you visit D. when you would visit
( )28.—He to school by bike but now he to school on foot .
A. used to going ; get used to go B. used to go ; gets used to going
C. used to go ; gets used to go D. gets used to going ; gets used to go
( )29. –Zhou Jielun is so cool . I’m his fan. ---
A. So do I B. So I do C. So am ID. So I am
( )30.Whith the help of the government, many poor Children can get chances to school.
A. go B. to go C. goes D. going
( )31.Japan is a country while china is a country.
A. developing ; developed B. developing ; developing C. developed; developing D. developed ; developed
( )32.In china about of people live in the country.
A. three fifth B. third fifth C. third fifths D. three fifths
( )33. Maria has never been to Shanghai. ?
A. isn’t she B. hasn’t she C. has she D. is she
( )34.---Why do you come here? ---We are here to the public services.
A. provide ; to B. provide ; with C. provide ; for D. provide ; in
( )35.HuMing for about two yeas.
A. has joined the army B. has been a soldier C. was a soldier D. joined the aumy
( )36. I have the Great wall twice . It is an place.
A. been to ; excited B. gone to ; exciting C. been to ; exciting D. gone to ; excited
( )37.My English is very poor. I can’t learn it well you help me .
A. if B. unless C. while D. when
( )38.Lily told John for class again next time ,
A. not late B. don’t he late C. didn’t late D. not to be late
( )39. ----What did Ann ask you just now , Tom? --- She asked for the bike.
A. did I pay how much B. I paid how much C. how much did I pay D. how much I paid
( )40.----Do you think the rain will stop tomorrow? ---- It has rained for ten days . It’s too wet every where.
A.I hope not B. I’m sure it is C. I’m afraid to will D. I hope so .
II、完形填空(每小题1分,共15分)
阅读短文,掌握其大意。然后从各小题所给的A、B、C、D四个选项中选出可以填入相应空白处的.最佳答案,并将其标号填入题前的括号内。
Pan Weihong, 14, from Taizhou, Zhejiang, was watching news on her computer when her mother came in. Her mother immediately asked her to turn off the computer, but Pan 41 .
“I was taking a rest. I wasn’t going to use it for 42 ,” said Pan. “But she didn’t listen. I couldn’t understand her!”
Many teenagers often feel the 43 as Pan. Growing up, they might feel as if their parents want to 44 them.
The main reason behind this all is that teenagers are becoming more independent (独立的) and want to make their own decisions, 45 parents have their worries too.
Pan’s mother thought Pan was “too young to use the computer 46 ”.
Besides, 47 children and parents have stresses in their own lives. Children have to study hard. Their parents need to 48 the whole family. Without a proper way to ease (减轻) the stress, it’s 49 to bring it home with you.
To solve the problem, children 50 walk in their parents’ shoes, said Xia Ziting, 15, from Nanjing, Jiangsu.
“ 51 our parents do is the life experience that we don’t have now. More often than not, they are right,” she said. “They may just use the wrong way of telling us.”
Wang Jiannan, 15, from Taiyuan, Shanxi, 52 that teenagers find the right time and right way to talk to their parents.
“Don’t argue with them when they’re very angry. It’s taken me many painful (痛苦的)
53 _ to learn that,” he laughed. Wang 54 talking to parents in an easy tone when doing housework together, during a walk, or, as he usually does, at dinnertime.
“After all, no one wants to argue on a (an) 55 stomach !” he said.
41. A. agreed B. refused C. received D. forgot
42. A. short B. ever C. long D. years
43. A. same B. different C. serious D. unfair
44. A. understand B. love C. support D. control
45. A. but B. and C. or D. so
46. A. incorrectly B. properly C. happily D. excitedly
47. A. neither B. either C. both D. all
48. A. lose B. encourage C. support D. reply
49. A. difficult B. good C. exciting D. easy
50. A. could B. should C. would D. might
51. A. What B. Which C. That D. Whether
52. A. taught B. warned C. advised D. used
53. A. subjects B. lessons C. suggestions D. diseases
54 A. said B. continued C. imagined D. suggested
55. A. empty B. full C. big D. angry
III. 阅读理解(每小题2分,共40分)
阅读A、B、C、D、四篇材料,然后从各个小题所给的四个选项中选出最佳选项。
A
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A. get a CD free B. get 6 hours of free parking
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A. cheaper tie B. more expensive tie
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A. buy some gifts B. buy some tickets
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A. Mike's Cafe B. the Book Store
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学习要养成归纳的习惯,这也是学习任何知识的重要方法,那么九年级上册英语第九单元知识点怎么学习呢?以下是小编准备的一些九年级上册英语第九单元知识点,仅供参考。
记单词有窍门
单词是英语学习的基础,它是垒起英语这座长城的坚硬的.基石。初三复习阶段,单词的记忆是非常重要的。下面,笔者为大家介绍一些巧记单词的方法。
选择最佳记忆时间
每一个同学都有不同的记忆习惯和最佳记忆时间,通过实践摸索,同学们可以选择自己记忆效果最佳的时间。如每天清晨或每晚临睡以前,坚持每天背单词的习惯。
运用单词本身的规律
记单词时,我们应该结合单词的构词法、词性转换或同义词、反义词的归纳来巧记单词。如:care(n./V.)-careful(adj.)-careless(adj.)-carefully(adv.)-carelessly(adv.)-carefulness(n.)-care鄄lessness(n.)
利用多种感官记忆
同学们在背单词时,常常是读读写写,边读边背。事实上,利用听觉来加强记忆也能起到很好的效果。如把单词的读音、拼写和汉语词义录在录音机里,在临睡前或上下学的路上反复听,它能刺激我们的无意注意,强化记忆,轻轻松松就记住了单词。
通过归类记忆
在记忆单词时,同学们还可以有目的地进行单词整理,如把单词归类,写在小卡片上,利用平时空闲的时间进行专项的单词记忆。如体育项目类:
high-jump(跳高),long-jump(跳远),discus-throwing(掷铁饼),relay-race(接力跑),110-meterhurdles(110米跨栏),diving(跳水),fencing(击剑),boxing(拳击),tabletennis(乒乓球),tennis(网球),badminton(羽毛球),volleyball(排球),football(足球),basketball(篮球),gymnastics
(体操)等。
遵循记忆规律
在背单词的过程中,很多同学都有这样的经历,明明自己背过的单词不久以后却又忘了。这就需要我们遵循记忆规律,经常循环地复习。通常,以每两周进行一次单词总复习为宜。