暑假学与练七年级英语

2024-10-22

暑假学与练七年级英语（共2篇）

1.暑假学与练七年级英语篇一

暑假学与练·科学（七年级）参考答案

（一）1.B2.C3.C4.B5.C6.D7.B8.C

9.（1）克（2）分米（3）℃（4）秒10.C11.（1）A（2）用铜丝线圈总长度L2除以铜丝的圈数n，即得细铜丝的直径d（3）略

（二）1.B2.C3.A4.D5.C6.B；C；G；A；D7.（1）横梁；指针；托盘；分度盘（2）左；小；往右盘添加砝码；往右移动游码（3）CDEAB；m2-m1

8.（1）78.2克；-4℃；2.50厘米（2）10毫升9.A

（三）1.B2.A3.C4.A5.C6.C7.（1）哺乳类（2）鸟类

（3）爬行类（4）两栖类（5）鱼类8.（1）能否进行光合作用（2）体温是否恒定（3）鲫鱼、蝴蝶

课外拓展：非洲的森林；哺乳类；跟大象、山羊归为一类，因为它和大象、山羊同属草食动物；否；设立自然保护区；略

（四）1.C2.B3.C4.（1）细胞膜；C；B（2）细胞壁；液泡；叶绿体（3）分化5.（1）细胞壁；细胞核（2）A；E（液泡）；F（叶绿体）（3）B；物质（4）C；D（5）A（6）E；细胞液（7）F；光合作用6.C7.B8.C9.B

10.A

（五）1.B2.C3.D4.（1）细胞液；液泡（2）保护；营养（3）输导（4）器官5.（1）上皮组织；结缔组织；肌肉组织；神经组织；器官（2）表皮；真皮；皮下组织（3）真皮（4）真皮；神经（5）竖毛肌（6）汗腺6.B7.食道；小肠；大肠；小肠；唾液腺；胃腺；肠腺；肝；胰腺8.（1）表皮；保护（2）输导；叶脉（3）叶肉；营养

（六）1．两极稍扁、赤道略鼓；6378千米2． 140万；130万；33万；6000；1500万3.B

4.C5.D6.C7.D8.B9.（1）太阳黑子；耀斑（2）A

10.（1）下落高度（2）3；6；7（3）越浅（4）可能与月球表面的地质软硬有

关

（七）1．（1）北；东；西；南（2）星图上的东西方位与地表上的方位相反（3）大熊座；天鹅座；仙后座；小熊座（4）北极星；织女星（5）春季2.（1）峨眉月；新月；上弦月；满月

（2）BACD（3）应在十五晚上观测3.（1）水星；金星；火星；木星；土星；天王星

（2）⑤（3）⑤（4）冥王星；水星（5）金星；火星4.A5.C6.B

7.B8.B9.B

（八）1.D2.D3.C4.（1）B（2）B5.D6.B7.熔化；非晶体

8.（1）乙；210℃；3（2）AB、CD；BC；固体；固液共存；液体；AB、BC、CD9.乙；甲

（1）13（2）98℃

（九）1.C2.D3.C4.D5.C6.A7.D8.B9.B10.凝华；内

11.扩散；分子不断地做无规则的运动；越快；越快12.凝固；融化；蒸发；升华13.（1）加快沙中水的蒸发（2）保持沙子的湿润，使蒸发继续进行

（十）1.气压；气体溶解性随气压升高而增大，随气压降低而减小2.放出3.（1）25；15（2）温度不同时，同种物质的溶解能力不同；在一定条件下，物质的溶解能力是有限的4.B5.（1）苦味（2）D6.D7.0~14；强；强；中8.紫色石蕊；酸；pH试纸；用洁净的玻璃棒蘸少量的雪碧沾在pH试纸上9.（1）无色、有刺激性气味、气体、易溶于水（2）甲醛能与氢气、氧气、硝酸银的氨水溶液反应10.乙；丁、甲、丙11.（1）大红花、玫瑰、雏菊（2）绿色

（十一）1.A2.B3.C4.A5.A6.D7.B8.B9.（1）眼睛、鼻子、手、舌（2）大脑（3）这是由于大脑的嗅觉中枢疲劳的缘故10.（1）手背上的神经末梢对热比较敏感（2）不对，痛觉是对人体保护意义最大的感觉，要是没有痛觉，我们不知道别人攻击我们，就不会保护自己，会对身体造成伤害11.热；凉；凉；热

（十二）1.D2.A3.D4.A5.C6.B7.C8.B9.C10.A

11.C12.声源；传播途径；人耳

（十三）1.C2.C3.B4.B5.C6.C7.D8.透过的色光；反射色光 9.2.529 ×101310.体温；高；红外线；强11.黄、白、绿；反射

（十四）1.120；202.反射；折射3.（1）小于（2）小于；增大；入射角4.D5.A6.C7.D8.A9.C10.C

（十五）1.晶状体；视网膜；倒立；缩小；实；近视；远视；色盲2.（1）远视；像成在视网膜之后

（2）凸透镜；会聚3.（1）耳、眼、舌（2）大脑；电话（3）电话4.增强；减弱

5.D6.A7.A8.B9.A10.B

（十六）1.（1）机械运动（2）声运动（3）生命运动（4）光运动2.（1）动能（2）势能（3）声能（4）化学能（5）电能3.机械；电4.机械运动5.B

6.B7.C8.B9.C10.D11.（1）化学（2）热（3）声（4）机械（5）太阳（6）电（7）热

（十七）1.位置；参照物2.在相同时间里通过路程的多少；通过相同的路程所用时间的多少；单位时间内通过的路程3.运动快慢；58.7米每秒；每秒钟通过的路程为58.7米

4.A5.B6.C7.D8.B9.C10.B11.骑车人的速度比跑步的人速度快；骑车人15秒内运动了200米12.9:20

（十八）1.A2.C3.D4.D5.C6.C7.物体间力的作用是相互的；运动

8.推；拉；方向；拉开9.甲、乙；甲、丙

（十九）1.C2.B3.C4.C5.C6.D7.C8.B9.A10.C

11．（1）A、D、F（2）G（3）C（4）B、E12.重力方向总是竖直向下的；力能改变物体的运动状态

（二十）1.静止；匀速直线运动；运动状态2.D3.A4.A5.D6.C7.B

8.B9.2000；1.5×10410.（1）63.2（2）小；远（3）匀速直线11.（1）686牛（2）5米/秒

（二十一）1.出生；发育；生殖2.B3.A4.C5.睾丸；输精管；前列腺；睾丸；输卵管；阴道；卵细胞；雌性激素；胎儿发育6.C7.B8.（1）蝌蚪；幼蛙；成蛙；生活；形态结构；完全变态发育（2）有性生殖；增加9.精子；卵细胞；输卵管；子宫内壁；胎盘；脐带10.略

（二十二）1.生殖器官的差异；第一性征2.（1）身高增加；体重增加；长胡须；喉结突出；遗精；乳房增大；出现月经；体形改变（2）卵巢；一；卵巢；月经；睾丸；排出精液；遗精3.C

4．略5.A6.（1）男（2）二（3）蛋白质7.A8.略

（二十三）1.有胚乳；无胚乳；双子叶；单子叶2.（1）子叶；胚乳（2）B；I（3）种子里是否有胚乳3.A4.A5.A6.B7.B8.C9.（1）柱头；花柱；子房；花药；花丝（2）⑧；雌蕊；⑨；雄蕊（3）⑤；⑦

（二十四）1.花药；雌蕊；自花；豌豆；异花；棉花2.C3.B4.（1）果实；子房（2）55． C6． D7． A8． D9． D10.无性生殖；加快繁殖速度，保持亲本的优良性状11.子房12.B13.A14.（1）有性生殖（2）母体

（二十五）1.C2.B3.（1）AC；AD；垂直；C；A；12（2）244.15；24；中央经线；区时；经度5.（1）5；东五区至东九区（2）略6.B7.他们所在的地方时间不同，澳大利亚要比杭州早2个小时8.C9.+8；6；西；减；-1；-1；23:00；19；4月19日23:00

10.4月22日1:00

课外拓展：（1）阳历（2）东五区；7

5（二十六）

1.D2.太阳直射；极昼极夜；南北回归线；南北极圈；极昼极夜；太阳直射；极昼极夜；太阳直射；太阳直射；极昼极夜；极昼极夜3.D4.直射；太阳直射点；太阳直射点；零5.B6.A7.（1）太阳高度角（2）正南；正北（3）西；东（4）A

（5）B（6）不一样，夏天大，冬天小8.A9.A10.（1）6月22日；夏至；12月22日；冬至（2）极昼（3）B

（二十七）1.公历；农历；阳历；阴历；阴阳历；阳历2.地球绕太阳公转；阳历；农历；农历3.B4.A5.（1）阳；绕日公转（2）阴；月相变化周期（3）昼6.A7.C8.B9.略

（二十八）1.地壳；地幔；地核；地壳；地幔2． A3．（1）火山口；火山锥；火山通道（2）高温岩浆；气体；碎屑（3）活；死4.D5.D6.A7.B8.①②③④

（二十九）1.山地；高原；平原；丘陵；盆地2．等高线3.C4.C5.内力；外力；内力高低不平；外力6.A7.ae；bf；cg；dh8.（1）山脊；山谷；山顶；鞍部（2）

4.8米（3）是（4）B；从大气降落到地表上的水，在重力作用下，沿着山谷凹地流动而形成河流9.C

（三十）1.A2.B3.C4.C5.C6.B7.A8.空气；改变运动状态

9.2.89；B10.（1）夏（2）2005年1月9日11时30分（3）昼短夜长11.（1）夏至（2）24（3）北回归线正午太阳高度为90度，北回归线以南、以北正午太阳高度逐渐减少

2.暑假学与练七年级英语篇二

句型

（1）What is it that Joe can’t find in the bathroom .

（2）Sb has difficulty in doing sth .

（3）There is no quick answer to this question .

（4）For along time the language in America stay the same , while the language in England changed.

重点讲解

1. What is it that Joe can’t find in the bathroom ? Joe在浴室里不能找到的是什么？

这是一个强调句式的特殊疑问形式。

It is / was +被强调成份+that（who）+非强调部分。

eg. （1）对主语作强调

It is Joe that / who can’t find the toilet in the bathroom .

（2）对宾语作强调

It is the toilet that Joe can’t find in the bathroom .

（3）对状语作强调

It is in the bathroom that Joe can’t find the toilet .

2. 主语+ have +（no , little , some , much , great …）difficulty / trouble in doing sth .

eg. ① Everyone in the town knew him , so we had no trouble / difficulty in finding his house .

镇上谁都认识他，因而我们毫不费力地找到了他的家。

② We had great difficulty in building the house .

我们费了很大力才找到他的家。

注意：使用这一句型应注意以下四点：

（1）difficulty和trouble为不可数名词，意为“困难”。

（2）修饰语主要有：no , little , some , much , great ,（not）any等。

（3）句中介词为in , 有时可省略。

（4）介词in后必须跟动词的ing形式。

3. With so many people communicating in English everyday , we can see that it will be more and more important to have a good knowledge of English .

有这么多的人每天用英语进行交流，我们可以看出，懂得英语将会越来越重要。

（1）With sb. doing sth. 这是with的复合结构，在句中可作状语，表示原因。

eg. ① With the doctors treating me , I will recover soon .

有这些医生给我治疗，我很快就会康复。

② With the work well done , he got praised . 由于这工作做得好，他受到了表扬。

（2）

用来表示“越来越……”

eg. ① He is running faster and faster . 他现在跑得越来越快了。

② It was getting darker and darker . 天越来越黑了。

4. Many students want to know about the differences between American English and British English .

许多学生想知道有关美式英语和英式英语之间的差别。

know和know about的区别

know是vt. 后面跟名词，代词，意为“认识”“知道”指人与人之间直接的认识，了解；而know about（of）意为知道，了解关于……的情况，指间接地“了解”，或听说过某人，某物。

eg. ① I don’t know / about him . 我不认识/ 没听说过他。

② I know about（of）her , but I can’t say that I know her .

我知道有其人，但谈不上认识她。

5. Written English is more or less the same in both Britain and America though there are some spelling differences . 在英国和美国，书面英语大体上是相同的，尽管在拼法上有差异。

more or less : 大约；或多或少；在一定程度上

eg. I’d like to spend ＄10 , 000 more or less on a computer .

我想花一万美元买一台计算机。

6. For example , the words colour , centre and travelled are spelt color , center and traveled in American English .

例如：colour , centre , traveled 这些词在美国英语里拼成color , center , traveled .

for example是介词短语，为插入语在句子作独立成份，意为“例如”“譬如”可缩写为“eg”。

eg. He , for example , is a good teacher. 例如，他是个好教师。

7. However , most of the time , people from the two countries do not have any difficulty in understanding each other .

尽管如此，大多数时候，两国人民在互相理解上没有困难。

eg. ① However , he didn’t have any money on him .

② He will never succeed , however hard he tries .

③ You can write however you want to .

8. How did the differences come about ? 这些差别是怎样产生的呢？

（1）come about “发生”“造成”

eg. The police are investigating how the accident came about .

警方正调查事故是怎样发生的。

（2）happen和take place , happen to do

It happens that …

eg. ① The car accident happened under my eyes .

② I happened to meet him in the street yesterday .

③ It’ll happen that I’ll go to your university for a visit .

④ I don’t believe that the accident happened to him .

⑤ The May Fourth Movement took place in 1919 .

（3）come构成的短语

eg. ⑴ I have never come across such a thing before .

⑵ Come along with us if you like to .

⑶ He came from TaiWan .

⑷ Summer comes after spring .

⑸ The elder gentleman came down in the world with the bank crash .

⑹ The true story came down to our generation from last generation .

⑺ The new term began and we all came back to the school .

⑻ The rain stopped and the sun came out .

⑼ Leaves and flowers come out when spring comes .

⑽ My book will come out next month .

⑾ Your photo didn’t come out because the film was faulty .

⑿ He came off his bike and scraped his knees .

⒀ Her attempt to break the world record nearly came off .

⒁ It’s your turn . Come on .

⒂ His English has come on a lot since he joined the Listening class .

⒃ He came up with a new method for improving English .

9. At first , the language stayed the same as the language used in Britain , but slowly the language began to change from one part of the world to another .

起初，这种语言与英国使用的语言相同，但是慢慢地它开始在一个一个地区发生变化。

（1）stay：连系动词“保持（某种状态）”

eg. The windows stayed open all night long . 窗户整夜开着。

（2）the same … as “和……一样”

eg. She used the same pen as I（do）她用的笔和我的一样

（3）… used in Britain是过去分词，作定语。修饰前面的language。

eg. ① the broken glass

② returned students

③ the used pen

10. Sometimes , the English spoken in America or Canada or Australia changed , but sometimes the language spoken in these place stayed the same , while the language in England changed .

有的时候美国，加拿大，澳大利亚所说的英语发生了变化；但有时，这些地方所说的英语保持不变，而美国说的英语却发生了变化。

（1）spoken是过去分词后置定语修饰其前面的名词。

（2）while是并列连词“却，然而”

Unit2 English around the world单元同步检测

一. 单项选择

1. - Your father has given up smoking , hasn’t he ?

- Yes , he smokes now .

A. any more B. not more C. much more D. no more

2. There are many differences spoken English and written English .

A. is B. for C. between D. about

3. He told me that he better .

A. was , that day B. is , today C. was , this day D. is , the day

4. Miss Green , their new teacher of English , is European .

A. an , an B. the , / C. an , the D. / , a

5. It is said that the earth is becoming warmer and warmer , How does this ?

A. come from B. come back C. think about D. come back

6. The teacher said , “ stop ! ” so we stopped .

A. to talk , to write B. talking , writing C. talking , write D. talking , to write

7. English words come from foreign language .

A. A great many B. The great many C. A great many of D. A great much

8. - Take a short rest , will you ?

- Ok , I’m tired after a long walk .

A. more or less B. more and more C. as a result D. for example

9. I can hardly the difference between these two words .

A. point B. talk C. tell D. was using

10. I really don’t know when we’ll the mid-term exam .

A. take B. attend C. join in D. join

二. 完形填空

How long can you expect to live ? That is to say , 1 is the average life expectancy for us ?

The average life expectancy 2 from country to country , but for many countries nowadays , the average life expectancy is over 70 years . That 3 that the overage 4 will live to be at least 20 years old .

Actually , in the United States in 1980 , the average life expectancy was 73.8 5 . This age is a little 6 than the average life expectancy in 1970-70.8 years .

In fact , if you look at the average life expectancy 7 for this century , you’ll see that the

8 gets higher every year . For instance , in 1900 it was 47.3 , in 1910 it was 50 , in 1920 it was 54.1 , 1930 was 59.7 , 1940 was 62.9 , 1950 was 68.2 , and in 1960 the average lifetime was 69.7 years .

9 does the average life expectancy 10 getting higher and higher ? The main

11 are related to 12 care . First , health care , 13 general health care for 14 children has 15 steadily . Second , a large number of 16 have been 17 in the past 40 or 50 years . These 18 drug can prevent and cure many 19 that used to be fatalin the 20 .

1. A. Where B. Why C. Which D. What

2. A. changes B. turns C. varies D. rises

3. A. appears B. means C. proves D. says

4. A. expectancy B. life C. man D. person

5. A. years B. ages C. points D. long

6. A. later B. bigger C. higher D. older

7. A. number B. figure C. knowledge D. information

8. A. difference B. average C. result D. age

9. A. Why B. What C. How D. When

10. A. stay B. leave C. keep D. hold

11. A. explanation B. ideas C. answers D. reasons

12. A. health B. medical C. loving D. hospital

13. A. specially B. exactly C. especially D. actually

14. A. older B. young C. big D. small

15. A. changed B. risen C. increased D. improved

16. A. drugs B. medicines C. products D. goods

17. A. invented B. produced C. developed D. made

18. A. strong B. powerful C. effective D. wonderful

19. A. diseases B. sicknesses C. illnesses D. troubles

20. A. century B. period C. history D. past

三. 阅读理解

Let children learn to judge their own work . A child learning to talk does not learn by being corrected all the time : if corrected too much , he will stop talking . He notices a thousand times a day the difference between the language he uses and the language those around him use . Bit by bit , he makes the necessary changes to make his language like other people’s . In the same way , children learning to do all the other things they learn to do without being taught - to walk , run , climb , whistle , ride a bike-compare their own performance with those of more skilled people , and slowly make the needed changes . But in school we never give a child a chance to find out his mistakes for himself , let alone correct them . We do it all for him . We act if we pointed out to him , or correct it unless he was made to . Soon he becomes depandent on the teacher . Actually , the best policy is : “ Let him do it himself ! ”

1. The writer mainly wants to tell us it is important to let children .

A. make some mistakes B. correct their own mistakes

C. learn some useful skills D. judge their own work

2. Which of the following should teachers NOT do ?

A. Give children correct answers .

B. Always point out children’s mistakes to them .

C. Allow children to correct their mistakes immediately .

D. Help children notice their mistakes .

3. In the writer’s opinion , a child can not learn well if he .

A. depends too much on his teacher

B. notices the difference between what he does and what those around him do

C. makes changes now and then

D. learns to do things without being taught

4. The passage suggests that learning to talk .

A. is just the same as learning to ride a bike

B. is different from learning to whistle

C. is not as important as learning to walk

D. is more important than learning to climb

Visitors to Britain are sometimes surprised to learn that newspapers there have such a large cireulation（发行量）. The “ Daily Mirror ” and the “ Daily Express ” both sell about four million copies every day . British families generally buy a newspaper very every morning and two or three on Sundays .

Besides the national papers , there is ,however , another branch of the British press which sells almost as many copies . Local（地方的）newspapers have a weekly circulation of 13 million . Almost every town and country area has one . Nearly all of them hold their own financially（财政）and many of them are very profitable（赚钱）.

These papers are written almost entirely for readers interested in local event births , weddings , deaths , council（地方会议）meetings and sports . Editors（编辑）prefer to rely（依靠）on people who know the district well . A great deal of local news is regularly supplied by clubs and churches in the neighbourhood and it does not get out of date as quickly as national news .

The cditors must never forget that the success of any newspaper depends on advertising（广告）. He is usually anxious to keep good will of local businessmen for this reason . But if the newspaper is well written and the news items have been carefully chosen to draw local readers , the businessmen are grateful for the opportanity（机会）to keep their products in the publie eyes .

5. Visitors to Britain are surprised to learn that .

A. there are so many local newspapers there

B. local papers should have a circulation of four million

C. the “ Daily Mirror ” and “ Daily Express ” sell as many as 4 million copies every day

D. British newspapers are so widely read

6. Local newspapers have .

A. a circulation as large as that of national newspapers

B. a daily circulation of 13 million

C. a slightly smaller circulation

D. an even larger circulation

7. Which of the following is true ?

A. Every town and country area has at least one paper of its own .