牛津深圳广州版七上英语Module 2 The natural world Unit 3 The earth课前小测（无答案）

Part 1 课前小测
一、根据句意及首字母提示写出所缺单词,注意其形式。
1. We must p the Earth. It is our home.
2. In Africa, you can see many wild animals run on the l like tigers.
3. He has f friends. He always feels lonely.
4. Some people throw rubbish into the river. That will p the water.
5. The man, was arrested(被逮捕), because he k a woman last month.
6. It is i for us to learn English well.
7. He b the letter secretly and threw away the ashes.
8. That city is 50 k away from our city. We can get there by bus.
9. The classroom is very l . It can hold 200 students.
10. My cat is a good helper. It often helps us c the mice.
二、根据中文意思完成句子。
1.将来，我们也许可以住在水下。
In the future, maybe we can live _____ _______ ____________ .
2.上完课，我把所有的书都放进书包里。
After class, I all my books _________ he schoolbag.
3.这条肮脏的河流不能提供清洁的水给我们。
The dirty river can’t_________ ____________ _____________ clean water.
4.请帮我把块沉重的石头抬起来。
Please me the heavy stone .
5.这双鞋坏了，所以我妈妈打算把它扔了。
This pair of shoes is broken, so my mother is going to __________ .
6. 空气和水让我们活着。
Air and water ___________ ___________ ___________.
7.我们必须停止污染我们的地球。
We must our Earth.
三、选择最佳答案。
（ ）1. Orange juice_______my favourite drink. I usually buy _______ in the
supermarket to make juice.
A. are, orange B. is, oranges C. are, oranges D. is, orange
（ ）2. I’ d like _______ milk tea and _______ chocolate.
A. a cup of, a B. two cup of, some
C. two cups of, many D. a cup of, some
（ ）3. There is a lot of rubbish on the road. Let ‘s _______.
A. pick up it B. pick it up
C. pick up them D. pick them up
（ ）4. Who _______ will come to the party
A. other B. others C. another D. else
（ ）5. It’s very cold in winter. We must _______ wood to keep warm.
A. burn B. to burn C. burning D. burned
（ ）6. Let me _______ a photo of the train. It is very beautiful!
A. take B. taking C. takes D. took
（ ）7.________ a lot of sheep on that hill.
A. There is B. There are
C. There have D. Have
（ ）8. There ________ some meat in the fridge.
A. is B. are C. be D. have
Part 2 词句分析
Unit 3 The Earth 自然世界
一、本单元重点词语
on Earth 在地球上 stop doing something 停止做某事
on the land 在陆地上 throw away 扔掉
under the water 在水下 lift up 将······抬起
provide with 为···提供··· keep… alive 让······活着
put...into 把···倒入···
二、难点精析
1. About 70% of the Earth is covered by water. 地球表面70%被水覆盖。
be covered by由······覆盖
The mountain snow.这座山由雪覆盖着。
About 80% of this street clothes shops.这条街80%的店铺是服装店。
2. Some places are very hot, and some are very cold.有些地方非常炎热，有些地方却非常寒冷。
some...some...有些······有些·····
some students are from the south，and some students are from the north.
有些学生来自南方，有些学生来自北方。
3.The Earth provides us with air, water and food.地球给我们提供空气、水和食物。
Provide sb. with sth.为某人提供某物=provide sth. for sb.
Mom delicious moon-cake in the Mid-autumn Day.
妈妈在中秋节那天给我们备好了美味的月饼。
My aunt a pretty hat her daughter .
我的姑姑为她女儿准备了一顶漂亮的帽子。
Today, there is a lot of pollution.现在有很多污染。
a lot of... 很多 = lots of后接可数名词或不可数名词
There are foreigners in Guangzhou. 广州有很多外国人。
I have toys and I like them very much.我有很多布娃娃，我非常喜欢这些布娃娃。
5. We must stop doing these things.我们必须停止做这些事情。
stop doing sth停止正在做某事, doing是stop的宾语，是要停止的动作。
stop to do sth停下来开始做某事，to do是stop的状语，表示目的，是要开始做的事。
The two women when they saw the man.
这两名女士一见到那个男士就停止了讲话。
The two women to the man when they saw him.
这两名女士一看到那个男士就停下来和他讲话。
6.It is important for us to protect the Earth for our future.
为了我们的未来，保护地球对我们来说是非常重要的。
It is important for sb.to do...做某事对某人来说很重要
It is very important us hard in the school.
在学校努力学习对我们来说很重要。
It is very important for us water from polluting.
保护水不受污染对我们来说非常重要。
7.This pollutes the air.这污染空气。
pollute v.污染 pollution n. 污染
protect保护 protect...from(doing)something保护······免受·····
她用手遮住太阳以保护她的眼睛。
She _______ her eyes _______ the sun with her hand.
针对练习：
一、根据句意及首字母提示写单词，补全句子。
1. We all live on E_________.
2. It is a good design (设计) p_________ for us to learn.
3. This morning, we have a q _________ about Maths.
4. We must p_________ ourselves because there are many dangerous things.
5. Today, it's my turn to make a r_________ on studying.
6. About 80% of the mountain is c_______ by tree.
7. We must s______ walking loudly in the church.
8. What can we do to p_____ the Earth.
9. Air p_____ come from exhaust gas (废气) of ears.
10. The Earth p_____ people with air, water and food.
二、根据句意及汉语提示写单词，补全句子。
11. The arm is a_________(部分) of our body.
12. There are many plants on the_________(陆地).
13. There are many kinds of vegetables(蔬菜)in the _________(田野).
14. The box is too _________ (大的) for you to carry.
15. The country _________ (提供) people with fruit.
16. There is a lot of _________(污染) in this city.
17. I have no _________ (能量) to go on running!
三、根据汉语提示补全句子，每空一词，缩写算一词。
1．中国有许多漂亮的地方。
There are many _________ _________in China.
2．关于地球你知道些什么？
What do you _________ _________the Earth
3．这场考试对我来说很重要。
This exam is very _________ _________me.
4．不要在房子里烧东西，因为很危险。
_________ _________things in the house, because it's dangerous.
5．你必须按时睡觉。
You _________ _________to bed on time.
6．爸爸告诉我不要杀鸟儿。
Father tells me not _________ _________birds.
7．我有许多书。有些有趣，有些无聊。
I have many books. _________are interesting and _________ are boring.
8．我们必须停止工作。
We must _________ _________.
9．今天天气如何？
_________ the weather _________today
10．图书馆有许多不同的书。
There are _________ _________ _________ in the library.
11.我们应该阻止人们污染河水。
We should _______ people _______ _______ the river.
12.对我们来说学好英语是重要的。
_______ _______ _______ us to learn English well.
13.房子后面有两棵树和一堵墙。
_______ _______ two trees and a wall behind the house.
四、单项选择。
( )1. _____ something wrong with my ear. Can I use yours
A. It is B. It was C. There is D. There was
( )2. Mr. Liu asks the students _____ in the river, because it's too dangerous.
A. swim B. to swim C. not to swim D. not swimming
( )3. There's going to _____ in tomorrow's newspapers.
A. have something new B. have new something
C. be something new D. be new something
( )4.----There is no air or water on the moon. Is there ----_____.
A. Yes, there are B. No. there isn't C. Yes, there isn't D. No, there is
( )5. _____ is there on the table
A. How many apples B. How much bread
C. How much breads D. How many food
( )6. There _____ pencil-box, two books and some flowers on the desk.
A. is a B. are some C. has a D. have some
( )7. The boys have got _____ already.
A. two bread B. two breads
C. two pieces of bread D. two pieces of bread
( )8. We can't work out the Maths problem. Can you tell us _____
A. how to do B. what to do it C. how to do it D. what should to do
( )9. It is very important for us _____ English well!
A. learn B. to learn C. learning D. learned
( )10.----There goes the bell. ----It is time for class. Let's stop _____.
A. talk B. talks C. to talk D.talking
Part 3语法讲解
1.关于可数名词。
可数名词有单数和复数两种形式。指一个人或一件事物时，用单数形式指两个或多个人或事物时用复数形式。名词由单数形式变成复数形式的规则如下:
可数名词复数形式的构成：
规则变化：
__________________________ 如：cap— cake—
_____________________________如：glass— watch—
_____________________________如：shelf— knife—
______________________________如：story— baby—
_________________________如：potato— hero—
②不规则变化：
改变元音字母，发音也随之变化：
man(人；男人)— woman(女人)—
postman(邮递员)— fireman(消防员)—
foot(脚)— tooth(牙齿)—
goose(鹅)—
a man teacher(一名男老师)— a woman nurse(一名女护士)—
b. 单复数同形的词：
a sheep(一只羊) — a fish（一条鱼）— a deer（一头鹿）—
c. 通常以复数形式出现的名词：
scissors(剪刀) trousers(裤子) clothes(衣服)
glasses(眼镜) shorts(短裤)
d. 表示“某国人”的单复数：
单数和复数相同， 如：a Japanese— a Chinese—
变man为men, 如：an Englishman— a Frenchwoman—
词尾加-s, 如：a German— an American—
【总结】中日不变，英法变，其他“s”加后面 e.
其他形式：a child—two children an ox—three oxen(三头牛) a mouse—four mice（四只老鼠）
不可数名词的数:
不可数名词通常只有单数形式，前面无需加不定冠词a/an。
如：water, milk, oil, soil, ink, bread, juice等。
但如果需要表示具体的数量时，要使用以下短语：
a glass of juice a piece of paper a slice of bread
【针对练习】
一、写出下列名词的复数形式。
1. city ____________ 2. tomato ____________
3. bus ____________ 4. box _____________
5. radio ___________ 6. knife _____________
7. piano ___________ 8. sheep _____________
9. Japanese _____________ 10. man ____________
11. tooth ______________ 12. child ____________
13. German _____________ 14. book ____________
15. mouse _____________ 16. fish _____________
二、单项选择。
( )1. How many _____ are there in the room
A. apple B. students C. milk D. paper
( )2. The old man wants_____.
A. six boxes of apple B. six box of apples
C. six boxes of apples D. six boxs of apple
( )3. We should clean _____ twice a day.
A. our tooth B. our tooths C. teeth D. our teeth
( )4. There are four _____ and two _____ in the group.
A. Japanese; Germans B. Japanese; Germen
C. Japaneses; Germen D. Japanese; German
( )5. They are______.
A . woman teachers B. women teachers
C. women teacher D. woman teacher
( )6. Would you like _______ , please
A. two glass of water B. two glasses of water
C. two glass of waters D. two glasses of waters
there be句型
1. 定义：There be句型表示某处存在某物或某人。
2. There be句型结构中的is/are的选择：
(1) There is +单数可数名词/不可数名词+ 地点/时间状语.
(2) There are +复数名词+地点/时间状语.
there是引导词，在句中不充当任何成分，翻译时也不必译出。句子的主语是某人或某物，谓语动词be要与某人或某物的数保持一致。当be后是两个或两个以上的名词时，谓语动词要与跟它最近的第一个名词一致即采用就近原则。
eg. ① There is a bird in the tree. 树上有一只鸟。
② There is a teacher and many students in our classroom.
③ There are two boys and a girl under the tree.
there be结构的时态
一般时态的构成
句型 时态 主系表 谓主状
一般现在时态 is, am, are there is (are)
一般过去时态 was, were there was (were)
一般将来时态 will be there will be
4.There be句型与have的区别：
(1) 用法不同：there be 表示某个时间或地方“存在”某人或某物，而have表示主语“拥有”某人或某物，作宾语的某人或某物属主语所有。
(2) 结构不同：
there be + sb./sth. +时间/地点(副词或介词短语)；sb./sth. + have +sb./sth.
There are some children in the garden.花园里有几个孩子。
She has three cars. 她拥有三辆汽车。(汽车是属于她的)
注：若是部分与整体关系时，有时用两种表达方式都可以。如：
A week has seven days. =There are seven days in a week. 一周有七天。
【习题精练】
一、单项选择。
( )1. There _____ not _____ milk in the cup on the table.
A. are many B. are much C. is; many D. is much
( )2. Do you know if _____ a meeting next Sunday
A. there was going to have B. there was going to be
C. is there going to be D. there will be
( )3. There_____ a film tomorrow evening.
A. will have B. have C. is going to be D. has
( )4. There _____ a football match on TV this evening.
A. will have B. is going to be
C. has D. is going to have
( )5. There _____ a school at the foot of the hill.
A. have B. stand C. are D. stands
( )6. There's going to _____ in tomorrow's newspapers.
A. have something new B. have new something
C. be something new D. be new something
( )7. How many boys _____ there in Class one
A. be B. is C. are D. am
( )8. There _____ a lot of good news in today's newspaper.
A. is B. are C. was D. were
( )9. There _____an apple and ten bananas in the basket. You can take any of them.
A. are B. is C. has D. have
( )10. _____ any flowers on both sides of the street
A. Is there B. Are there C. Has D. Have
( )11. There is little water in the glass, _____
A. isn't there B. isn't it C. is it D. is there
( )12.-There is no air or water on the moon. Is there - _____.
A. Yes, there are B. No. There isn't
C. Yes, there isn't D. No. There is
( )13.-What did you see in the basket then
-There _____ a bottle of orange and some oranges.
A. is B. Are C. was D. were
( )14. _____ is there on the table
A. How many apples B. How much bread
C. How much breads D. How many food
( )15. There isn't _____ paper in the box. Will you go and get some for me
A. any B. some C. a D. an
Part 4 writing
话题写作
假设你们班就学校周边的环境问题举行了一次英语主题班会。你留意到学校旁边的那条河流污染很严重，便以此作为你在班会上发言的主题。请根据以下内容提示用英语写一份发言稿，反映该河流的污染问题，并呼吁大家保护该河流，可适当发挥。词数70以上，发言稿的开头已给出，不计入总词数。
内容提示
很多人把垃圾扔进河里。2.一些工厂把废水排进河里。3.河水很脏，河里几乎没什么鱼4.对我们来说，保护这条河流是很重要的。5.请大家停止污染这条河流。
Step 1 激活词汇
1.把······扔进···· ________________
2.把······倒入···· ________________
3.废水 ________________
4.很少鱼(儿乎没什么鱼) ________________
5.停止污染这条河流 ________________
Step 2 精彩结构
运用以下结构，可以让你的文章更出彩哦
There be “有（表存在)”
例：There are 24 hours in a day. 一天有 24 个小时。
（译）河里几乎没什么鱼
____________________________________________________________________
It is +形容词+（for sb）to do sth “（对某人来说）做某事是....的”
例：It is helpful for us to listen to English often. 对我们来说，常听英语很重要
（译）对我们来说，保护这条河流是很重要的
____________________________________________________________________
Step 3 谋篇布局
根据题目要求和内容提示，文章可分为两端。 第一段讲述 ________________
；第二段讲述 ________________， 并呼吁大家 ________________。
Step 4 小试身手
Hi ,everyone! I want to talk about the river next to our school.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Part 5 Homework
基础部分
词汇
根据句意及首字母提示写出所缺单词，注意其形式。
1. It isn’t clear whether the plane went down over l_______ or sea.
We all live on E_______ . It is our home.
Solar power is a kind of green e_______ .
He has f_______ friends because he doesn’t like to make friends.
My dream is to have my o_______ shop.
Taiwan is a p_______ of China.
The government (政府） made some laws（法律） to p_______ women and children.
Cars not only make cities crowed, but also p_______ the air.
Trees p_______ people with a lot of useful things.
They were very happy because they succeeded in solving the p_______ .
短语
一、根据句意，从方框中选择适当的短语完成句子，注意其形式。
It is snowing heavily,so there is _________ snow on the roof.
The man can use one hand to _________ a 40-pound dumbbell(哑铃）
People are trying to _________ in different ways without pollution the air.
There are _________ trees on Earth. It’s bad for the environment.
Air _________ . Without air ,we will all die quickly.
根据中文意思完成句子。
他把所有的热水都倒进瓶子里。
He _________ all the hot water _________ the bottle.
政府为乡村的学生免费提供课本。
The government _________ the students in the countryside _________
textbooks for free.
有很多小鸟在天空飞翔。
There are many birds flying _________ _________ _________ .
鲍勃来自于一个大家庭
Bob _________ _________ a big family.
不要扔掉这些旧报纸，你可以把它们存起来然后卖掉。
Don’t _________ _________ the old newspapers. You can collect them and then sell them.
句型
根据题目要求，完成下列句子。
There are five apples in the basket. (就划线部分提问）
_________ _________ apples _________ _________ in the basket
We practice English every morning. It is useful. (合并为一句）
_________ _________ for us _________ _________ English every morning.
根据中文意思完成句子。
学生们正在植树，有的在抬水，有的在挖坑。
The students are planting trees. _________ _________ carrying water, and _________ _________ digging holes.
我妈妈经常叫我上学不要迟到。
My mum often _________ _________ _________ _________ be late for school.
我们必须停止杀害狗，他们是我们的朋友。
We must _________ _________ dogs. They are our friends.
语音
找出划线部分发音不同的选项。
（ ）1. A. pollution B. full C. put D. could
（ ）2. A. short B. doctor C.for D. important
（ ）3. A. move B. food C. foot D. cool
（ ）4. A. grass B. go C. large D. glass
（ ）5. A. cake B. cinema C. luck D. cook
选出划线部分发音与所给单词划线部分发音相同的选项。
（ ）1. plant A. laugh B. would C. should D. August
（ ）2. grow A. vegetable B. stage C. gate D. page
（ ）3. must A. autumn B. rule C. unit D. cut
（ ）4. whose A. look B. cool C. good D. cook
（ ）5. coffee A. coat B. shock C. so D. hold
提升部分
一、完型填空。
The Earth is crying. The 1 is getting more and more serious, such as air pollution, soil pollution, noise pollution, light pollution and so on. They do __2__to our health in many ways.
Burning gas, oil and coal can pollute the 3 _. So it is hard for us to breathe. People will 4 get lung cancer.
The waste things and dirty water from factories make our 5 dirty. Every day, people put a lo of rubbish in the land. 6 use too many chemicals in the fields. All these 7 the soil. And soil pollution becomes more and more serious.
8 pollution can make people deaf. For example, if a person works in a noisy place for a long time. He or she will lose the 9 . too much noise can cause high blood pressure too.
Working for a long time in strong, changeable light may bring some kinds of illnesses.
Let’s 10 polluting the Earth. Saving the Earth is saving ourselves.
( )1.A.people B.money C.food D.pollution
( )2.A.harm B.good C.kind D.things
( )3.A.water B.air C.land D.farm
( )4.A.hardly B.suddenly C.badly D.easily
( )5.A.schools B.houses C.environment D.parks
( )6.A.Farmers B.Teachers C.Doctors D.Aliens
( )7.A.build B.pollute C.dig D.take
( )8.A.Noise B.Light C.Water D.Oil
( )9.A.voice B.eye C.hearing D.singing
( )10.A.stop B.tell C.keep D.like
二、语法选择
Please have a look at this picture of a family. Are these people 1 No. They are not from China. They 2 from America. This is an 3 girl. Her name is Kate Brown. She is new in my class. 4 the two boys. The one in the red football clothes is Jim, the other one in black is Peter. They are the 5 brothers, and Jim 6 Peter. They are 7 school. The man with glasses on his nose is 8 father. The woman is their mother. 9 are new teachers in our school. They 10 us English.
( )1. A. Americans B. Chinese C. English D. Japanese
( )2. A. comes B. be C. are coming D. come
( )3. A. America B. English C. American D. England
( )4. A. Look after B. Watch C. Look D. Look at
( )5. A. hers B. girl's C. Kate's D. Kate
( )6. A. looks like B. is looking like C. looks the same D. look like
( )7. A. go to B. in C. at D. go to the
( )8. A. they B. their C. theirs D. them
( )9. A. They B. Their C. Them D. Theirs
( )10. A. teaches B. teaching C. is teach D. teach
四、阅读理解。
（A）
Little Tom down the street calls our dog "The keep dog".Zip is a sheep dog. But when Tom tries to say" Seep", it comes out "keep". And in a way Tom is right. Zip is always bringing things for us to keep! I'll tell you about some of them.
Zip's first present was a shoe. It was made of green silk.
We didn't know how Zip found the shoe. But after a moment Mary, my big sister, told me the shoe had a strange smell. I nodded(点头)and held my nose. "What do you think it is "
"It smells like something for cleaning. I think someone tried to clean a spot (污点) off the shoe. Then he put it at the door to dry."
"Along came Zip. And good-bye shoe!" I said."We should take it back."
"We can't ".said my sister.
"Maybe little Tom is right," Mary said. "Maybe Zip is a keep dog!"
　　
( )1.The writer and Mary didn't know______.
　　A.what Zip's first present was B.how Zip carried its first present home
　　C.who owned Zip's first present D.what Zip's first present was made of
( )2.Tom calls Zip "the keep dog"because ______.
　　A.the dog likes keeping things B.the dog likes playing with shoes
　　C.he doesn't know the dog's name D.he can't pronounce the word "sheep"well
( )3.What made the shoe strange was ______.
　　A.its colour B.its smell C.its size D.that it was a silk one
( )4.The word "keep"in the last sentence means "_____"
　　A.keeping things for itself B.bringing things for other to keep
　　C.not letting it run about D.taking care of a small child
( )5.We can know from the reading that the dog _____.
　　A. likes to give presents to people B.has been kept in at the writer's home
　　C.has brought some trouble D.likes to be called "the keep dog"
　
（B）
An old lady in a plane had a blanket（毯子）over her head and she did not want to take it off . The air hostess spoke to her, but the old lady said, “I have never been in a plane before , and I am frightened. I am going to keep this blanket over my head until we are back on the ground again !”
Then the captain came. He said, “Madam, I am the captain of this plane. The weather is fine, there are no clouds in the sky, and everything is going very well. ”But she continued to hide.
So the captain turned and started to go back. Then the old lady looked out from under the blanket with one eye and said, “I am sorry, young man, but I don’t like planes and I am never going to fly again. But I’ll say one thing, ”She continued kindly, “You and your wife keep your plane very clean!”
　　
( )1. An old lady had _________ .
　　A. glasses B. a blanket over her head C. a coat D. a basket
( )2. A. She didn’t want to ________ .
　　A. take it off B. turn it off C. get on D. talk about it
( )3. _________ spoke to her .
　　A. The air hostess B. The man next to her C. her husband D. one of her friends
( )4. The old lady had never been _________ before .
　　A. abroad B. home C. in a plane D. in hospital
( )5. The woman didn’t like planes and she was never going ________ .
　　A. to fly again B. to travel C. to go abroad D. to go home
（C）
Dick lived in England. One day in January he said to his wife, "I'm going to fly to New York next week because I've got some work there." "Where are you going to stay there " his wife asked. "I don't know yet." Dick answered. "Please send me your address from there in a telegram (电报)," his wife said. "All right," Dick answered.
He flew to New York on January 31st and found a nice hotel in the center of the city. He put his things in his room and then he sent his wife a telegram. He put the address of his hotel in it. In the evening he didn't have any work, so he went to a cinema. He came out at nine o'clock and said, "Now I'm going back to my hotel and have a nice dinner."
He found a taxi (出租车) and the driver said, "Where do you want to go " But Dick didn't remember the name and address of his hotel.
"Which hotel are my things in " he said, "And what am I going to do tonight " But the driver of the taxi did not know. So Dick got out and went into a post office. There he sent his wife another telegram, and in it he wrote, "Please send me my address at this post office."
( )1. Dick flew to New York because ___.
　　A. he went there for a holiday B. he had work there
　　C. he went there for sightseeing (观光) D. his home was there
( )2. Why did his wife want a telegram from him
　　A. Because she didn't know his address yet
　　B. Because she wanted to go to New York, too
　　C. Because she might send him another telegram
　　D. Because she couldn't leave her husband by himself in New York
( )3. Where did Dick stay in New York
　　A. In the center of the city. B. In a hotel.
　　C. In a restaurant. D. At his friend's house.
( )4. Who would send him the name and address of his hotel
　　A. The manager (经理) of his hotel. B. The police office.
　　C. The taxi driver. D. His wife.
　( )5. Which of the following is not true
　　A. Dick stayed at a nice hotel in the center of the city.
　　B. Dick didn't work on the first night of his arrival.
　　C. Dick forgot to send his wife a telegram.
　　D. Dick wanted to go back to his hotel in a taxi.
四、阅读填空。
Can you imagine people will work and live in the sea In the future __1__By submarine(潜水艇). 2 And people will work on the ocean floor as they do on the street!
3 For example, how can people live in a weightless environment. How can they get fresh air in the sea as they do on land What will happen to their bodies if they live in the sea for a very long time 4 .
Maybe in 50 years, people will be able to live in the sea, away from the crowded and noisy cities on land.__5__ And life in the sea will be more comfortable.
Scientists are looking for answers.
They will find it fun and interesting to live in the sea.
Some scientists believe that some day there will be a large number of submarines like today’s cars.
How will people go to work then
If people want to live in the sea,they have to solve a lot of problems.
五、书面表达。
假设你是学生会主席李华，下周将是地球日，学生会准备向同学们发出以“保护地球”为主题的倡议活动。请根据下面的提纲写给全体同学一封倡议书。
原因 地球面临的问题（列举2个现象）
做法 1. 不乱扔垃圾2. 充分利用使用过的课本和练习本3. 离开教室应关灯
其他做法 1-2个
要求：
1. 词数不少于80词，开头和结尾已给出，不计入总词数。
2. 可适当发挥，但要注意语言通顺、流畅、准确。
Dear classmates,
As we all know, Earth is our home. _______________________________________________
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Li Hua
fewer and fewer, a lot of, make energy, lift up, keep sb alive