为您找到与七年级地理第一学期期中测评卷相关的共252个结果:
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。
知识点是指某个模块知识的重点、核心内容、关键部分,那么三年级上学期数学第五单元知识点有哪些呢?以下是小编准备的一些人教版三年级上学期数学第五单元知识点,仅供参考。
一、思考:思考是数学学习方法的核心。在学这门课中,思考有重大意义。解数学题时,首先要观察、分析、思考。思考往往能发现题目的特点,找出解题的突破口、简便的解题方法。在我们周围,凡是真正学得好的同学,都有勤于思考,经常开动脑筋的习惯,于是脑子就越用越灵,勤于思考变成了善于思考。我正因为掌握应用了这一方法,所以在全国数学竞赛中获得了武汉市一等奖。
二、动手试一试:动手有助于消化学习过的知识,做到融会贯通。课下,我常常把老师讲过的公式进行推导,推导时不要看书,要默记。这样就能使自己对公式掌握滚瓜烂熟,可为公式变形计算打下扎实基础
三、培养创造精神:所谓创造,就是想出新办法,做出新成绩,建立新理论。创造,就要不局限于老师、课本讲的方法。平时,有一些难度高的题目,我在听懂了老师讲的方法后,还要自己去找一找有没有另外的解法,这样能加深对题目的理解,能比较几种解法的利弊,使解题思维达到一个更高的境界。
高中地理很多知识点易混淆,是哪些呢?下面是为大家整理的高中地理常见易混淆知识点总结,喜欢可以收藏分享。
1、天体与天体系统
就宇宙间物质的存在形式而言的是天体,天体指的是各种星体和星际物质。就天体的运动关系而言的是天体系统,天体系统指的是运动着的天体因相互吸引、绕转,所构成的相对独立的系统。
2、流星体、流星现象与陨星
流星体是运行在行星际空间的固体块和尘粒。高速冲入地球大气层的流星体会与空气分子激烈碰撞,从而因燃烧产生的光迹就称为流星现象。降落到地面的未燃尽的流星体的“残骸”就被称为陨星。
3、昼夜之分、昼夜更替与昼夜长短
地球是不发光、不透明的球体,所以地表向日的一半明亮,但是对应的另一半黑暗的现象就是昼夜之分。
地球自转而使地球产生的白昼与黑夜,是以一个太阳日,也就是24小时为周期的交替现象,这被称为了昼夜更替。
由于黄赤交角的存在和地球公转引起太阳直射点的移动,使除赤道外的各纬度昼夜长短产生周年变化的现象是昼夜长短。
4、节气与季节
确定节气的根据是天气和物候的演变情况,以太阳在黄道上运行15度为划分标准,一年有24个节气。
根据各地正午太阳高度和昼夜长短的周年变化情况确定的季节,是以太阳在黄道上运行90度为划分标准。
一年中寒来暑往及物候的变更情况,通过节气与季节反映。
5、气温递减率与地温递增率
气温递减率表示对流层内气温随高度而逐渐下降的变化率。气温每平均上升100米就下降0.6℃。地温递增率表示常温层以下一定深度内,地温随深度逐渐增高的变化率。温度平均每深100米增高3℃。
在知识点的讲授中,应该讲到的是主要知识点,那么关于高一地理必修一知识点有哪些呢?以下是小编准备的一些高一地理必修一知识点,仅供参考。
1、做好预习。预习一般是指在老师讲课以前,自己先独立地阅读高中地理新课内容,做到初步理解,做好上课的准备。预习要做到:通览教材,初步理解教材的基本内容和思路;预习时如发现与新课相联系的旧知识掌握得不好,则查阅和补习旧知识,给学习新高中地理知识打好牢固的基础。
2、注重理解,高中地理兼有文科和理科的多种特点。有背诵的地理基础知识,但也有逻辑性强的理解性内容,光靠死记硬背是不行的,一定要多理解,弄懂各地理现象之间的联系。
3、加强习题的练习,地理技能的获取只有在运用中才能得到提高,所以完成一定量的与课本配套的习题是很有必要的。当然,高中地理学习中地图册是必须放在手边的常用工具书,借助地图册,多多的查阅各地理名词,形成空间概念,可以让学习变得更加顺利。
4、学会使用地图。地图又是学习高中地理的工具,通过分析地图,可以认识地理特征、原理、成因,找到利用改造的途径,要学会读、用各种地图,首先要记住最基本的地图。
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。
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。
高中地理知识点繁多,内容分布也很杂乱。那么关于高考地理知识点总结有哪些呢?以下是小编准备的一些2024年高考地理知识点,仅供参考。
1.一定要看好图片
一定要看好图片是等高线还是等压线,是近地面的等压线还是高空的等压线,又或者是图片上的横坐标和纵坐标分别表示的是什么意思。
这些都很有可能是出题老师给我们设置的坑,而且这些都是非常合法合理的坑,有很多同学会顺着这个坑就跳下去了。
2.一定要认真仔细地看好四个选项
四个选项缺一不可,都要看到。有的时候我们看到的第一个选项,觉得这个选项肯定可以排除,绝对是错误的。
但是当我们看完了其他三个选项之后,觉得它们更不对,更是错误的,所以回过头来还是选择了第一个选项。
那么在做题的时候,如果你做某道题,其中某一个选项,你给他排除了,那你一定要有一个非常明确的理由才能够把它排除。
而我们在做题时,会出现那么一个你认为非常离谱的选项,然后你给排除了,但是非常有可能正确的选项就是它。
大家要想在高考中拿高分,大题题型和答题技巧就必须要掌握,那么高考地理题型及解题技巧有哪些呢?以下是小编准备的一些高考地理题型及解题技巧,仅供参考。
一、东亚:
1、总括:
(1)东部沿海:山地丘陵为主,平原狭小;
(2)西部内陆:高原山地为主;
2、山脉:阿尔泰山(蒙古),昆仑山(中国),喜马拉雅山(中国);
3、高原:蒙古高原(蒙古),青藏高原(中国);
二、东南亚:
1、总括:
(1)中南半岛:山河相间,纵列分布,北高南低;
(2)马来群岛:地形崎岖,多火山地震;
三、南亚:
1、总括:
(1)北:喜马拉雅山南部;
(2)中:两大冲积平原(印度河平原、恒河平原);
(3)南:德干高原(亚洲的高原);
2、山脉:西高止山(印度西部),东高止山(印度东部)
四、中亚:
1、总括:以丘陵平原为主;
2、平原:里海沿岸平原(俄罗斯),图兰平原(乌兹别克斯坦);
3、丘陵:哈萨克丘陵(哈萨克斯坦);
五、西亚和北非:
1、总括:以高原为主,平原狭小
2、山脉:阿特拉斯山(非洲西北部,阿尔及利亚),大高加索山脉(西亚,为亚洲和欧洲分界线),格罗斯山(西亚,伊朗);
3、高原:伊朗高原(伊朗),美索不达米亚高原,
4、平原:尼罗河盆地和三角洲;
六、撒哈拉以南的非洲:
1、总括:
(1)以高原为主,东南向西北倾斜;
(2)第二大热带雨林分布区;
2、山脉:东非大裂谷,乞力马扎罗山(肯尼亚);
3、盆地:刚果盆地(世界上的盆地);
4、高原:埃塞俄比亚高原,东非高原,南非高原;
七、西欧:
1、总括:
(1)海岸线曲折多半岛、岛屿、内海;
(2)以平原山地为主,南北分布,东西走向;
(3)冰山地形分布:挪威峡湾海峡;
2、山脉:斯堪的纳维亚山,阿尔卑斯山;
3、盆地:巴黎盆地;
4、平原:西欧平原,波德平原
八、欧洲东部和北亚:
1、总括:地势平坦,以平原高山为主,东高西低,南高北低;
2、山脉:乌拉尔山(亚洲、欧洲分界线);
3、平原:东欧平原,西西伯利亚平原;
4、高原:中西伯利亚高原;
九、北美:
1、总括:纵列分布,山脉与海平行;
(1)东部:高原山区;
(2)中部:平原区(冬冷夏暖);
(3)西部:高山区;
2、山脉:科迪勒拉山系,落基山;
3、高原:拉布拉多高原;
十、拉丁美洲:
1、总括:
(1)北部:以高原为主;
(2)西部以安第斯山为主;
(3)东部以平原、高原为主(相间分布);
2、山脉:安第斯山脉,迪勒拉山系;
3、平原:奥里诺科平原,亚马逊平原(世界第一大平原),普拉塔平原;
4、高原:圭亚那高原,巴西高原(世界第一大高原),巴塔哥尼亚高原;
十一、大洋洲:
1、总括:
(1)东部:山地(大分水岭)大堡礁;
(2)中部:平原(大自流盆地→澳大利亚盆地);
(3)西部:低矮高原(占澳大利亚面积一半);
十二、南极:
1、总括:
(1)冰雪高原(平均海拔:2350m);
(2)90%大陆冰川;
(3)淡水水库;
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。
八年级地理知识蛮难的,一起来看看接下来的总结归纳。下面是为大家整理的八年级地理知识点总结归纳,喜欢可以收藏分享。
八年级地理知识点一起学习起来!下面整理的知识点详细,但还不够全面,希望能帮到大家。
影响气候的主要因素有纬度位置、大气环流、海陆分布、洋流和地形。纬度位置、大气环流是全球性的地带性因素,海陆分布、洋流和地形是非地带性因素。
影响气候的基本因素是纬度位置。地球是个大球体,太阳照射的角度因为地方所处纬度不同就不一样,有直射的,有斜射的,有的地方整天或几个月都受不到阳光照射。
各地方的太阳高度角不同,所以接受太阳光热多少就不一样,气温高低也相差悬殊。气温越高的地方纬度越低。气温越低的地方纬度越高。造成世界各地气温不同的主要原因是所处纬度位置不同。
形成各种气候类型和天气变化的主要因素是大气环流。大气圈内空气做不同规模运行统称为大气环流。大气中热量、水汽等输送和交换的重要方式就是大气环流。行星风系、季风环流、海陆风、山谷风等都是大气环流的表现形式。人们常说的大气环流主要指行星风系。气候特征,尤其是降水的变化,在不同气压带和风带控制下有显著的差异。形成各种不同的气候类型的原因还有风带和气压带随季节的移动。
海陆分布改变了降水和气温的地带性分布。由于海洋和陆地的物理性质不同,在强烈的阳光照射下海洋的增温慢,陆地的增温快。阳光减弱后,海洋降温慢而陆地降温快。海洋与陆地表面空气中,所含水汽多少不同。
能破坏气候分布的地带性的是地形的起伏。地形是非地带性因素,不同地形对气候有不同影响。同一纬度,地势越高,气温越低,降水是随高度的升高而增加的,但是是在一定高度的范围内。
七年级地理的知识点多,但不是很难。下面是为大家整理的七年级地理知识点,喜欢可以收藏分享。
初一七年级地理知识点包括地理位置和地形、主要山脉和河流、气候、自然资源、人口和城市、经济和交通等。
一、地理位置和地形:
1、位于亚洲东部的中国,东临太平洋,横跨北亚北部、东亚东部、东南亚次大陆和西南亚西部四大自然地理区域。
2、呈阶梯状的中国地势,由西南到东北逐渐升高。中国的地形类型主要有高山、高原、丘陵和平原地带。
二、主要山脉和河流:
1、中国的主要山脉包括喜马拉雅山脉、昆仑山脉、大兴安岭、祁连山、天山山脉、秦岭山脉等。东西走向的有天山、阴山、昆仑山、秦岭、南岭。东西走向靠北的是天山、阴山。东西走向的中间一列是昆仑山和秦岭。东西走向靠南的有南岭。东北到西南走向自西向东分为三列,包括西侧一列的大兴安岭、太行山、巫山、雪峰山等,中间一列的长白山、武夷山等,最东一列的是台湾岛上的台湾山脉。
2、中国的主要河流包括黄河、长江、珠江、黑龙江等。
三、气候:
1、类型多样的中国的气候有亚热带季风、温带季风、寒温带和高原气候等。
2、中国的北方气候寒冷干燥,是大陆性气候特征。中国的南方气候温暖湿润,是海洋性气候特征。
四、自然资源:
1、中国的矿产资源丰富,有煤炭、铁矿石、油气等。
2、中国的植物资源多样,包括茶叶、水果、粮食等。
3、中国的水资源丰富,有世界上主要河流和大型湖泊。
五、人口和城市:
1、中国是世界上人口众多的国家。
2、中国有北京、上海、广州、深圳等主要城市。
六、经济和交通:
1、中国的主要经济支柱是科学技术、制造业和服务业等。
2、中国拥有世界最大的铁路网和公路网,交通发达。
七年级生物大家学习得怎么样?下面是为大家整理的七年级生物知识点总结归纳,喜欢可以收藏分享。
七年级生物知识点包括但不限于认识生物、了解生物圈等。
一、认识生物
1、生物的特征
(1)生物生活是需要营养的。
(2)能进行呼吸的是生物。
(3)生物可以排出体内产生的废物。
(4)生物对外界刺激能够做出反应。
(5)生物可以生长和繁殖。
(6)生物有特性,例如遗传和变异。
(7)生物是由细胞构成的,病毒除外。
2、观察和调查是科学探究的基本方法
二、了解生物圈
1、生物圈:
生物圈是地球上所有的生物与其环境的总和。
2、生物与环境的关系
生物的生存空间,以及存在于它周围的各种影响因素都是生物的生活环境。生态因素是环境中影响生物的生活和分布的因素。生态因素可分为光、水分、温度等非生物因素和影响某种生物生活的其他生物等生物因素。
3、生物与环境组成生态系统
(1)生态系统的概念:
生物与环境在一定的空间范围内所形成的统一整体叫生态系统。森林、农田、草原、湖泊等都可以作为一个生态系统。
(2)生态系统由两部分的组成:
一是生产者、消费者、分解者等生物部分。
二是阳光、水、空气、温度等非生物部分。
(3)生态系统中的生产者是植物,生态系统中的消费者是动物,生态系统中的分解者是细菌和真菌。在一般情况下,生态系统中数量最大的应该是生产者。
(4)食物链和食物网:
不同生物之间,在生态系统中由于吃与被吃的关系而形成的链状结构就叫食物链。
生态系统中往往有很多条食物链,彼此交错连接,形成食物网。
①沿着食物链和食物网流动的是生态系统中的物质和能量。
②食物链的起始环节是生产者,食物链的终点为消费者,且不被其他动物捕食。
③生物数量随着营养级越高越少。
④沿食物链,有毒物质进行着积累,越高营养级别的生物体内的有毒物质积累越多。
(5)生态系统具有一定的自动调节能力:
生态系统中生物的数量和所占比例在一般情况下是相对稳定的。这说明生态系统有一定自动调节的能力。但自动调节能力是有限度的,超过就会被破坏。
4、生物圈是最大的生态系统
(1)生物圈的范围:
水圈的大部、岩石圈的表面、大气圈的底部就是生物圈。
(2)生物圈为生物的生存提供了基本条件:
水、适宜的温度,还有营养物质、阳光、空气以及一定的生存空间。
(3)生态系统的类型:
绿色水库、地球之肺等森林生态系统、草原生态系统、湿地生态系统、淡水生态系统、农田生态系统、海洋生态系统、城市生态系统等,湿地生态系统是地球之肾。
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。
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。