初一下学期期中英语试卷-学生用卷 (2)

这是一份初一下学期期中英语试卷-学生用卷 (2)，共21页。试卷主要包含了语音辨析，单项选择，语法选择，完形填空，阅读理解，信息匹配，首字母填空，完成句子等内容，欢迎下载使用。
初一下学期期中英语试卷-学生用卷
一、语音辨析（本大题共5小题，每小题0.5分，共2.5分）
1、根据单词发音找出画线部分发音不同的选项。
(1)
A. French
B. branch
C. watch
D. ship
(2)
A. imagine
B. container
C. major
D. patient
(3)
A. landed
B. kicked
C. picked
D. watched
(4)
A. carry
B. pine
C. fly
D. diet
(5)
A. hair
B. care
C. are
D. square

二、单项选择（本大题共5小题，每小题0.5分，共2.5分）
2、I have            European pen friend, and he likes playing            guitar.
A. an; /
B. an; the
C. a; /
D. a; the

3、—Is the lady            the red dress your Chinese teacher?
—No, my Chinese teacher is the lady            long hair standing over there.
A. in; with
B. on; with
C. at; with
D. with; with

4、—We can't live without trees. They make our lives           .
—I agree. We should stop people            trees.
A. convenient; to cut down
B. convenience; to cut down
C. convenient; cutting down
D. convenience; cutting down

5、—There is            food in the fridge.
—OK, I will buy something to eat and           .
A. a little; two glasses of milk
B. little; two glasses of milk
C. few; two glasses of milks
D. a few; two glasses of milk

6、            people visit China every year. Yesterday,            people visited the Great Wall.
A. Millions of; two millions
B. Millions of; two million
C. Million of; two millions of
D. Million of; two million of

三、语法选择（本大题共10小题，每小题1分，共10分）
7、　　Henry found a job in a bookstore after he finished middle school. He wouldn't do anything but wanted to get rich.
　　It was a cold morning. It      1      and there was thin ice on the streets. Few people went to buy the books and the young man had nothing      2     . He hated to read, so he watched the traffic. Suddenly he saw a bag fall off a truck and it landed by      3      side of the street.
　　"It must be full of expensive things." Henry said to himself. "I have to get it right now,      4      others will take it away."
　　He went out of the shop and ran across the street. A driver saw him and began to whistle （鸣笛）, but he didn't hear it and went on      5     . The man drove to the side, hit a big tree and      6      in the accident. Two weeks later Henry was taken to court. A judge asked      7      he heard the whistle when he was running across the street. He said that something was wrong      8      his ears and he could hear nothing.
　　"But you have heard me this time," said the judge.
　　"Oh, I'm sorry. Now I can hear with one ear."
　　"      9      the ear with your hand and listen to me with your deaf one. Well, can you hear me?"
　　"No, I can't, sir."
　　"You are telling lies. There is nothing wrong with      10      of your ears." The judge said.
A. snowB. snowsC. was snowingD. snowed
A. doB. to doC. doingD. done
A. otherB. the otherC. othersD. the others
A. orB. ifC. andD. so
A. runB. runningC. runsD. ran
A. hurtB. hurtsC. is hurtD. was hurt
A. thatB. whatC. orD. if
A. onB. withC. byD. in
A. CoverB. CoversC. To coverD. Covering
A. eitherB. neitherC. bothD. all

四、完形填空（本大题共10小题，每小题1分，共10分）
8、　　Life is full of the unexpected.      1      a cold winter afternoon, a man saw an old lady standing by her expensive car and clearly she needed help. So he stopped and      2      his old truck. "Is he going to hurt me? He doesn't look safe." The old lady was      3     .
　　The man could see that she was afraid, so he said in his friendliest voice, "I'm here to help you, madam. Why don't you      4      in the car where it's warm? By the way, my name is Ted Johnson." Ted quickly fixed the car and the lady thanked him. Then she asked      5      she should pay him.
　　But Ted wanted no money. He was just giving a hand to someone in trouble.      6      was normal for him to do such a thing. He said, "If you really want to repay（报答）me, next time you see someone in need, think of me and help them." 　　
　　After saying goodbye, the lady continued down the road until she reached a small      7      where she decided to stop for something to eat. As the pretty waitress took her order, the lady noticed she was nearly eight months pregnant（怀孕）. The waitress looked tired and weak,      8      she was very kind. As the lady was going to pay the ＄10 bill, she remembered Ted's words.
　　After the lady was gone, the waitress saw a small note on the table. It said, "Somebody once helped me the way I'm helping you. Continue being kind to other people." Under the note were five      9      dollars.
　　The waitress was      10      excited that she called her husband to tell him the news, "Ted…Ted Johnson my dear… you're not going to believe what just happened…"
A. InB. OnC. AtD. Under
A. went offB. turned offC. took offD. got off
A. gladB. excitedC. worriedD. surprised
A. waitB. eatC. play D. cook
A. how manyB. how muchC. how farD. how often
A. ThisB. ThatC. ItD. They
A. restaurantB. bookstoreC. cinemaD. library
A. soB. butC. orD. because
A. hundredB. hundredsC. hundred ofD. hundreds of
A. tooB. veryC. suchD. so

五、阅读理解（本大题共15小题，每小题2分，共30分）
9、　　Where do you think people will live in the future? Can you imagine people will work and live in the sea? But how will people go to work then? By submarine（潜水艇）?
　　Some scientists believe that someday submarines will be as many as today's cars. A famous French driver says, "One day, people will work on the ocean floor as they do on the street!"
　　If people want to live in the sea, they have to solve a lot of problems, like those of living on the moon such as lack（缺少）of oxygen and weightlessness（失重）. Many problems are hard to solve. For example, what will happen to our bodies if we live in the sea for a very long time? Scientists are looking for answers.
　　Maybe in 50 years people will be able to live in the sea, away from the noisy cities on land. They will find it fun and interesting to live in the sea. And life in the sea is more comfortable. Don't you think so?
(1) Maybe people in the future will go to work on the ocean floor by           .
A. driving a car
B. taking a bus
C. taking a submarine
D. swimming
(2) Which of the following is NOT true according to the passage?
A. People may be weightless in the sea.
B. The sea is noisy and crowded for man to live.
C. Some scientists believe submarines will be popular in the future.
D. There are some problems to solve if people want to live in the sea.
(3) What's the best title of the article?
A. Living in the Sea
B. Living in Submarines
C. Living on Land
D. Living on the Moon

10、　　Many teenagers feel that the most important people in their lives are their friends. They believe that their family members, and in particular their parents, don't know them as well as their friends do. In large families, it is quite often for brothers and sisters to fight with each other and then they can only go to their friends for advice.
　　It is very important for teenagers to have one good friend or a circle of friends. Even when they are not with their friends, they usually spend a lot of time talking among themselves on the phone. This communication is very important in children's growing up, because friends can discuss something difficult to say to their family members.
　　However, parents often try to choose their children's friends for them. Some parents may even stop their children from meeting their good friends. The question of "choice" is an interesting one. Have you ever thought of the following questions?
　　Who chooses your friends?
　　Do you choose your friends or your friends choose you?
　　Have you got a good friend your parents don't like?
　　Your answers are welcome.
(1) When teenagers stay alone, the usual way of communication is           .
A. to go to their friends
B. to talk with their parents
C. to have a discussion with their family by phone
D. to talk with their friends on the phone
(2) Which of the following is different in meaning from the sentence "Some parents may even stop their children from meeting their good friends"?
A. Some parents may even not allow their children to meet their good friends.
B. Some parents may even ask their children to stay away from their good friends.
C. Some parents may even not let their children meet their good friends.
D. Some parents may want their children to stop to meet their good friends.
(3) Which of the following sentence is right?
A. Parents should like everything their children enjoy.
B. In all families children can choose everything they like.
C. Parents should try their best to understand their children better.
D. Teenagers can only go to their friends for help.
(4) This passage is a/an           .
A. diary
B. story
C. advertisement（广告）
D. report

11、 Electrical Appliances（电器）on Sale

(1) What day may be the first day of the electrical appliance sales?
A. Monday.
B. Tuesday.
C. Wednesday.
D. Thursday.
(2) If a person wants a rice cooker, he may get one at a price of            off at most.
A. 20%
B. 25%
C. 30%
D. 35%
(3) Which of the following have the greatest special offer?
A. Hair dryers.
B. Computers.
C. DVD players.
D. Plasma TVs.
(4) A fridge is usual ＄800, if Tom goes to Walmart store on 16th, October, he only pays           .
A. ＄800
B. ＄640
C. ＄600
D. ＄560

12、　　It seems strange to you that there is a blind spot（盲点）on the eyes. Here is an interesting experiment that can make something disappear, when one eye is open.
　　Make a card about the size of a postcard and write two English letters L and Ron it, L on the left and R on the right. First, hold the card about 80 cm away and you see both the letters. Then close your right eye and look at the letter R only with your left eye. And now, as you move the card slowly towards you, you will find the letter L disappearing. But if you move the card nearer to your face, the letter will be seen again. Now do the same experiment with your left eye closed, and you'll find the letterRdisappearing.
　　Why does the letter disappear? It is because there is a blind spot on the eyes. When the image（影像）of the letter falls on the blind spot, it won't be seen. That is why either of the letters disappears.
(1) The word "disappear" in the passage means            in Chinese.
A. 驱散
B. 消散
C. 消失
D. 遗失
(2) You fail to see the letter L in the experiment because           .
A. your eyes are poor
B. its image falls on the blind spot
C. you move it close to your eye
D. your left eye is not open
(3) In which order（顺序）should you do the experiment?
①Hold the card
②Move the card nearer
③Close your right eye
④Write two English letters
⑤Look at the letter R
⑥Make a card
A. ④⑥①②③⑤
B. ①③⑥④⑤②
C. ⑥①④③②⑤
D. ⑥④①③⑤②
(4) The passage tells us           .
A. why the blind spot exists
B. a difficult experiment
C. where the blind spot is
D. there is a blind spot on the eyes

六、信息匹配（本大题共5小题，每小题1分，共5分）
13、　　Thousands of years ago, people didn't live in cold places because they don't know how to keep themselves warm.      1      When an animal was killed, they made use of its skin to cover（覆盖）their bodies.      2      
　　Nature is our friend. It helped us discover（发现）fire when lighting hit a forest and started a fire.      3      The fire kept people warm, and also frightened（吓跑）wild animals. Soon people found that their food tasted better when they cooked it, so they began to use fire to cook food.
　　But people still didn't know how to make fire themselves. When they got fire from the forest, they tried to keep it burning.      4      
　　But later, they found different ways to make fire. For example, they made fire by burning wood or rubbing two pieces of stone together.
　　Today, it's easy for people to make fire because we have matches, lighters and different kinds of heaters.      5      
A. If it went out, they had to wait for years.
B. The skin kept them warm.
C. We can make fire at any time we need.
D. People took some of this fire to their homes.
E. Later, they learned how to make clothes.

七、首字母填空（本大题共5小题，每小题1分，共5分）
14、　　Trees are our friends. They help us in many ways. First, they clean our air because they take in h     1      gases（气体）and produce oxygen for us to breathe. Second, they help reduce noise pollution and cool our cities and make our cities beautiful. They keep soil from being washed away. F     2     , they provide a lot of things for people. For e     3     , they provide us with food. They also provide wood for houses, f     4      and paper products.
　　It's hard to i     5      how we can live without trees.

八、完成句子（本大题共5小题，每小题2分，共10分）
15、如果她来，我会告诉她这件事。
If                       , I                        her about this.

16、当我醒来时，这个婴儿在我身边睡着了。
When I                       , the baby                        beside me.

17、当他在做作业的时候，狗正趴在地上。
While he is doing his homework, the dog                                    on the floor.

18、我觉得我爸爸不太擅长讲笑话。
I don't think my father is good at           .

19、灯还亮着，请关掉吧。
The lights are still on. Please                                   .

九、书面表达（本大题共1小题，共15分）
20、　　假设你所在的学校正在开展 "广州是我家，我要保护它" 的环保活动，请你根据以下提示，结合你身边的实际情况写一篇短文，谈谈如何从自己出发，从身边的小事出发来保护环境。
　　要点提示：
　　1. 存在各种环境污染问题，如车越来越多导致空气污染，人们往河里乱扔垃圾导致水污染，不爱护树木，随意踩踏草地，采摘花朵等。
　　2. 提出你的具体建议：如何针对存在的环境问题采取相应的措施。
　　3. 号召大家一起保护环境，让广州变得越来越美丽。
　　注意：
　　1. 词数：80词左右。
　　2. 不得透露学校、姓名等任何个人信息，否则不予评分。
　　3. 参考词汇：environment环境；step on踩踏；pick up采摘


1 、【答案】 (1) D;
(2) A;
(3) A;
(4) A;
(5) C;
【解析】 (1) 考查语音辨析。各选项的音标是：A.French [frentʃ]；B.branch [brɑːntʃ]；C.watch [wɒtʃ]；D.ship [ʃɪp]。画横线部分发音不同的是D，故答案选D。
(2) 考查语音辨析。各选项的音标是：A.imagine [ɪˈmædʒɪn] ；B.container [kənˈteɪnə(r)]；C.major [ˈmeɪdʒə(r)] ；D.patient [ˈpeɪʃnt] 。画横线部分发音不同的是A，故答案选A。
(3) 考查语音辨析。各选项的音标是：A.landed [ˈlændɪd]；B.kicked [kɪkt] ；C.picked [pɪkt]；D.watched [wɒtʃt]。画横线部分发音不同的是A，故答案选A。
(4) 考查语音辨析。各选项的音标是：A.carry [ˈkæri] ；B.pine [paɪn] ；C.fly [flaɪ] ；D.diet [ˈdaɪət]。画横线部分发音不同的是A，故答案选A。
(5) 考查语音辨析。各选项的音标是：A.hair [heə(r)]；B.care [keə(r)]；C.are [ɑ:(r)]；D.square [skweə(r)]。画横线部分发音不同的是C，故答案选C。
2 、【答案】 D;
【解析】 考查冠词的用法。句意：我有一个欧洲笔友，他喜欢弹吉他。表示 "一个" 用a或an，而European以辅音音素开头，其前要加不定冠词a；表示演奏某种西洋乐器要在西洋乐器名称前加the。故选D。
3 、【答案】 A;
【解析】 考查介词。句意：—穿红衣服的那位女士是你的语文老师吗？—不，我的语文老师是站在那边的那位长发女士。穿红色衣服：人在前面时，要用in+颜色；有长长的头发要用with，故答案选A。
4 、【答案】 C;
【解析】 考查形容词作补语、固定搭配。句意：—没有树我们就不能生存。它们使我们的生活方便。—我同意。我们应该阻止人们砍伐树木。空格一，make sth.+adj.表示 "使某物……" ，形容词作补语；形容词convenient意为 "方便的，便利的" ，名词convenience意为 "便利" 。空格二，stop sb. (from) doing sth.意为 "阻止某人做某事" 。故答案为：C。
5 、【答案】 B;
【解析】 考查限定词、不可数名词的量词表达。句意：—冰箱里几乎没有食物了。—好的，我会买些吃的和两杯牛奶。空格一，food为不可数名词，由a little“一点儿”和little“几乎没有”修饰，根据后文要去买食物可知此处表示否定含义，用little。空格二，milk为不可数名词，two glasses of milk表示“两杯牛奶”。故答案为：B。
6 、【答案】 B;
【解析】 考查数量表达。基数词million表示 "百万" 。基数词在表示确切的数字时，不能使用百、千、百万、十亿的复数形式，而是直接用在数量的后面，如three thousand，且后面不加of。但是，当基数词表示不确切数字，如成千上万或者数百万时，基数词则以复数形式出现，如thousands of、millions of。所以，排除选项A、C和D。句意：每年有数百万人来到中国。昨天，有200万人参观了长城。故答案为：B。
7 、【答案】 C;B;B;A;B;D;D;B;A;A;
【解析】 1. 考查动词的时态。根据前句出现的was，可知动作是过去发生的，并且动作是正在进行的，snow应该使用过去进行时。故答案选C。
2. 考查非谓语动词。根据前句出现的had，可知要用非谓语，并且do是修饰nothing，而且后置，应用不定式。故答案选B。
3. 考查限定词的辨析。根据空格后的side，可知要选择可修饰名词的限定词，首先可排除C、D，又由常识可知路只有两边，且side是单数名词，应用the other。故答案选B。
4. 考查连词的辨析。根据前后句的逻辑可知是否定的条件句，表否则，应选or。故答案选A。
5. 考查非谓语动词。根据空格前的went on，可知要用非谓语，并且go on后只能加to do或doing，又因为表示继续做同一件事情，应用ing形式。故答案选B。
6. 考查动词的时态和语态。根据前句出现的drove，可知时态是一般过去时，并且主语是the man，hurt应该使用被动语态。故答案选D。
7. 考查连词的辨析。根据题意可知法官问Henry当他穿过街道的时候是否听到鸣笛。that无实义，what什么，or或者，均不符合题意，表是否应用if。故答案选D。
8. 考查介词的辨析。根据题意可知他说他的耳朵有问题并且听不见任何东西。on在……上面，by通过，in在……里面，均不符合题意，with表带有，具有。故答案选B。
9. 考查祈使句的动词。根据题意可知法官让他用手捂上耳朵并用聋的耳朵听法官说话，是祈使句表命令，应用动词原形。故答案选A。
10. 考查不定代词的辨析。根据题意可知男人的任何一只耳朵都没问题。neither两者都不，both两者都，all三者或三者以上全都，均不符合题意，either表两者中的任一个。故答案选A。
8 、【答案】 B;D;C;A;B;C;A;B;A;D;
【解析】 1. 文章大意：一个寒冷的冬天的下午，一名男子热情地帮助了一位老妇人，并告诉她将爱心传递下去，继续善待他人。后来她帮助了一位怀孕的女服务员。
考查介词辨析及语境理解。在具体某一天的早中晚用介词on。故答案选B。
2. 考查动词短语辨析及语境理解。go off 爆炸，停止运转；turn off关闭； take off 起飞；get off下车；句意：因此他停下来，从卡车上下来。故答案选D。
3. 考查形容词辨析及语境理解。glad高兴的；excited激动的；worried担心的；surprised惊讶的；句意： "他看起来不安全。" 这个老人很担心。故答案选C。
4. 考查动词辨析及语境理解。Why don't you do；wiat等待；eat吃；play玩；cook做饭；句意：你为什么不在车里等待呢？故答案选A。
5. 考查连接词辨析及语境理解。how many多少；how much多少钱；how far多远；how often多久一次；句意：她问她应该支付他多少钱？故答案选B。
6. 考查固定句式：It is +adj. for sb. to do sth.对某人来说做某事怎么样。句意：对他来说，做这样的事情是很平常的。故答案选C。
7. 考查名词辨析及语境理解：restaurant饭店；bookstore 书店；cinema电影院；library图书馆；句意：她到达一个小餐馆，她决定在那里吃一些饭。根据something to eat可知，restaurant符合文意，故答案选A。
8. 考查连词辨析及语境理解。so因此； but但是；or或者； because因为；句意：她看起来疲惫虚弱，但是她很善良。根据前后tired and weak, 和 she was very kind.可知，应该是转折关系，故答案选B。
9. 考查数量表达及语境理解。hundred百，前面有数字，后面无s；hundreds of数以百计的，前面不加数词。句意：在便条下面是五百美元。故答案选A。
10. 考查短语固定搭配及语境理解。so…that如此……以至于……；句意：这个女服务员如此激动以至于给她的丈夫打了电话告诉他这个消息。故答案选D。
9 、【答案】 (1) C;
(2) B;
(3) A;
【解析】 (1) 细节理解题。由第一段中的 "But how will people go to work then? By submarine? " 可知，或许将来人们会乘坐潜水艇去上班，故答案为C。
(2) 推理判断题。由最后一段中的第一句Maybe in 50 years people will be able to live in the sea, away from the noisy cities on land.可推断，或许五十年之后人们能够居住在海洋里，远离陆地上喧闹的城市，故选项B是错误的。
(3) 最佳标题题。通读全文可知，本文描述了人们在海洋里生活的情境及困难，所以是围绕着生活在海洋里展开的，故答案为A。
10 、【答案】 (1) D;
(2) D;
(3) C;
(4) D;
【解析】 (1) 细节理解题。根据 "Even when they are not with their friends, they usually spend a lot of time talking among themselves on the phone." 即使他们没有和朋友在一起，他们通常也会花很多时间在电话上交谈。可知朋友不在身边时，他们通常在电话上交流。故选D。
(2) 句意理解题。根据 "Some parents may even stop their children from meeting their good friends." 一些父母甚至阻止孩子和他们的好朋友见面。而 "Some parents may want their children to stop to meet their good friends." 一些父母想让他们的孩子去和好朋友见面。因此D项的意思和所给的句子意思不同。故选D。
(3) 推理判断题。根据They believe that their family members, and in particular their parents, don't know them as well as their friends do.可知许多青少年认为朋方比父母更能理解他们，所以父母应该尽力理解孩子。故选C。
(4) 文章来源题。根据Many teenagers feel that the most important people in their lives are their friends. 可知这篇文章讲述了许多青少年认为朋友是他们的生命中比父母更重要的人。应该是一份报告。故选D。
11 、【答案】 (1) D;
(2) C;
(3) B;
(4) C;
【解析】 (1) 文章大意：本文是沃尔玛商店的家用电器打折促销信息。
细节理解题。根据第一个表格中的时间信息 "Time: From Thursday to Sunday" 可知：促销活动的第一天是周四。故答案为：D。
(2) 细节理解题。根据第二个表格中的 "Up to 30% off（降价）" "Cooking appliances" 可知：烹饪用具最高有30％的折扣。而根据常识可知，电饭煲属于烹饪用具，故最高有30％的折扣。故答案为：C。
(3) 细节理解题。比较第二到四个表格中的降价信息 "Up to 30% off（降价）" "Up to 25% off" "Up to 20% off" 可知：第二个表格中的产品的优惠力度最大。 "Computers 电脑" 在第二个表格中。故答案为：B。
(4) 推理判断题。根据第一个表格中的时间信息 "Time: From Thursday to Sunday, 14th—17th October" 可知：10月16日是优惠期间。根据第三个表格中的 "Up to 25% off" "Fridges" 可知：冰箱最多有25%的折扣。冰箱的原价是800美元，800*（1-25％）=800*0.75=600美元。故答案为：C。
12 、【答案】 (1) C;
(2) B;
(3) D;
(4) D;
【解析】 (1) 词义猜测题。问题：单词的汉语意思是什么？分析原文：Here is an interesting experiment that can make something disappear, when one eye is open. 句意：这是一个有趣的实验，当一只眼睛睁开时，它可以让一些东西消失。故答案选：C。
(2) 细节理解题。问题：在实验中你为什么没有看到字母L？分析原文：as you move the card slowly towards you, you will find the letter L disappearing. 句意：当你把卡片慢慢移向你时，你会发现字母L消失了。故答案选：B。
(3) 语篇结构题。问题：在实验中的正确排序是什么？联系短文的第二自然段发现，先是制作卡片，接着写两个英文字母，拿着卡片，闭上右眼，看字母R，将卡片移近，故第四项的顺序是正确的。故答案选：D。
(4) 主旨大意题。问题：文章主要告诉我们什么？通读全文可知重点描述在我们的眼睛中有盲点。故答案选：D。
13 、【答案】 E;B;D;A;C;
【解析】 1. 本文讲述了人类的变迁，从刚开始不会保暖，到学会了用动物的皮制作衣服来保暖，从刚开始的将闪电击中森林引起的大火带到家里取暖，到现在用火柴和打火机等物随时随地取暖。
考查上下文逻辑。根据 "people didn't live in cold places because they don't know how to keep themselves warm" 及 "When an animal was killed, they made use of its skin to cover（覆盖）their bodies"，可知，刚开始不知道如何保暖，后来学会了如何保暖，E选项 "后来，他们学会了如何做衣服" 符合语境，故选E。
2. 考查上下文逻辑。根据 "When an animal was killed, they made use of its skin to cover（覆盖）their bodies"，可知，此处介绍与动物的皮有关的内容，B选项 "皮使他们保持温暖" 符合语境，故选B。
3. 考查上下文逻辑。根据 "It helped us discover（发现）fire when lighting hit a forest and started a fire" 及 "The fire kept people warm"，可知，人们发现了这种火，然后把它带到家里取暖，D选项 "人们把一些火带回家" 符合语境，故选D。
4. 考查上下文逻辑。根据 "When they got fire from the forest, they tried to keep it burning"，可知，此处解释要让火继续燃烧着的原因，A选项 "如果火熄灭了，他们还得等上几年" 符合语境，故选A。
5. 考查上下文逻辑。根据 "Today, it's easy for people to make fire because we have matches, lighters and different kinds of heaters"，可知，如今我们可以随时随地使用火柴、打火机等物品来生火，C选项 "我们可以随时生火" 符合语境，故选C。
14 、【答案】 harmful;Finally;example;furniture;imagine;
【解析】 1. 考查形容词。句意：首先，它们清洁我们的空气，因为它们吸收有害气体，产生氧气供我们呼吸。空格处修饰名词gases，结合they clean our air 可知树木吸收的是有害气体，形容词harmful“有害的”符合语境。故填：harmful。
2. 考查副词。句意：最后，它们为人们提供了很多东西。根据上文First、Second可知，此处用副词finally“最后”。故填：Finally。
3. 考查固定短语。句意：例如，它们为我们提供食物。食物是树木为我们提供的东西之一，for example意为“例如”，故填：example。
4. 考查名词。句意：它们还为房屋、家具和纸制品提供木材。结合provide wood及首字母f可知不可数名词furniture“家具”符合语境。故填：furniture。
5. 考查动词。句意：很难想象没有树木我们如何生活。It is+adj.+to do sth.意为“做某事是……的”。结合语境用imagine“想象”。故填：imagine。
15 、【答案】 she;comes;will;tell;
【解析】 考查if引导的条件状语从句。if引导的条件状语从句的规则是：从句用一般现在时，主句用一般将来时。从句的主语是：she，动词要用三单形式，故要用comes，主句用一般将来时，故要用will tell，故答案是：she；comes；will；tell。
16 、【答案】 woke;up;fell;asleep;
【解析】 考查一般过去时。根据句意判断出该句子要用一般过去时，醒来：wake up，一般过去时是：woke up；睡着：fall asleep，一般过去时是：fell asleep，故答案是：woke；up；fell；asleep。
17 、【答案】 is;getting;down;
【解析】 考查现在进行时。根据句意可知横线处需要填入：趴在，趴在地上：get down on the floor，前半句用的是现在进行时，且由while引导，所以后半句也要用现在进行时，表示动作同时进行，故答案是：is；getting；down。
18 、【答案】 telling jokes;
【解析】 考查固定搭配和名词复数。根据句意提示可知，空格处应该填写“讲笑话”，tell jokes是固定搭配，意为“讲笑话”；再根据be good at之后应该接动词ing形式，意为“擅长做某事”，所以空格处应该填写telling jokes。故答案为telling jokes。
19 、【答案】 turn;them;off;
【解析】 考查祈使句、动词短语。句子为祈使句，省略主语，谓语动词用原形；turn off意为 "关掉" ，为 "动词+副词" 结构的短语，由代词作宾语时将其放在中间的位置；指代前文的名词复数lights，用人称代词宾格them。故答案为：turn them off。
20 、【答案】 　　Now the environmental pollution is becoming more and more serious. There are various environmental pollution problems around us. More and more cars cause air pollution. People throw rubbish into the river and it causes water pollution. People do not care for trees, step on the grass, pick up flowers and so on.
　　In view of these problems, I think two measures can be taken to protect the environment. On the one hand, we can walk or take a bus. On the other hand, we should enhance the awareness of protecting the environment. We should sort out the rubbish and put it in the right place.
　　I hope every one of us will act to protect the environment. Let Guangzhou become more and more beautiful.
;
【解析】 1. 写作思路：本文采用经典的三段式结构，第一段写：存在各种环境污染问题；第二段写：具体建议；第三段写：号召大家保护环境。全文表示现在的一种状况，主要用一般现在时即可。
2. 高分句型/短语
a. Now the environmental pollution is becoming more and more serious. 现在环境污染越来越严重。
b. protect the environment 保护环境
c. On the one hand, … On the other hand, … 一方面……，另一方面……
d. I hope every one of us will act to protect the environment. 我希望我们每个人都行动起来保护环境。
3. 高级替换词汇/句型
a. It is adj. + for/of sb. to do sth.
b. What +名词/名词短语+ 主谓！