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【暑假闯关集训】复习Unit3
一、单项选择
1．Mary usually ________ her homework at 8:30 p.m.
A．finishes B．finish C．finishs D．finishing
2．Listen! The birds ________ in the tree.
A．sing B．sings C．are singing D．sang
3．—Can you tell me something about those chairs
—Of course. They are ________ hard woods.
A．made from B．made of C．made into D．made in
4．Xu Yuanchong (许渊冲) is known for his ________ of Chinese classics. He spread Chinese culture to the world.
A．translation B．painting C．handwriting D．communication
5．Mr. Ma always encourages us ________ each other with kindness and warmth.
A．to connect B．to repeat C．to treat D．to deal
6．Because of the Internet, the news seems to ________ more quickly than we expected.
A．remain B．spread C．disappear D．stretch
7．Let’s move away the big stone, or there may be a traffic ________.
A．event B．accident C．environment D．affair
8．It’s _______ to live here. There is a shopping mall and a big supermarket near here.
A．traditional B．terrible C．convenient D．surprised
9．There are many festivals in China, ________, Children’s day is on June 1st.
A．such as B．like C．for example D．just like
10．—Trees are really important to us.
—Yes, I cannot imagine ________ in a world ________ trees.
A．living; with B．living; without C．to live; without D．to live ; with
二、完成句子
11．神农偶然发明了茶，当时一些叶子从树上掉下来，掉进了他的饮料里。
Shen Nong discovered tea when some leaves from a tree his drink.
12．老师号召我们努力学习。
The teacher us to study hard.
13．感谢你来参加我的聚会。
coming to my party.
14．实际上， 这座房子是由垃圾制成的。
, this house is made of rubbish.
15．农民们正在为种水果准备田地。
The farmers are the field planting fruits.
16．中国有许多大城市，例如北京、上海和广州。
China has many big cities, Beijing, Shanghai, and Guangzhou.
三、语法选择
Trees are important. They can provide animals with homes. Lots of products, like pencils, are made 17 trees. However, they can give 18 these only if they are alive. So people have to do something to keep them 19 .
Therefore, people spend much time and money 20 trees. They found that the tree would grow best in a climate (气候) with 21 sunlight and rain, and little sunlight or rain would stop the growth of a tree. We can know the change of climate by reading the pattern of rings in a tree trunk. You should count the rings of a tree trunk 22 the outside to the inside. If 23 tenth ring is far from the other rings, there must 24 lots of sunlight and rain. If the rings are close to each other, then the climate is bad. Study like this is not only for the history of weather, but also for the history of humans. You can find only sand now in one place of New Mexico. However, there were millions of people in the past. They 25 suddenly. Why A group of scientists studied patterns of dead tree rings there, and they found that people went away because they destroyed (破坏) all the trees 26 and build houses.
17．A．in B．from C．of D．with
18．A．our B．ours C．we D．us
19．A．health B．healthy C．luck D．lucky
20．A．to make B．making C．to study D．studying
21．A．little B．few C．many D．much
22．A．from B．between C．for D．as
23．A．an B．the C．/ D．a
24．A．am B．is C．are D．be
25．A．are leaving B．leave C．will leave D．left
26．A．burning B．burn C．to burn D．to burning
四、完形填空
When Julia was 16, she left school and work at a restaurant. For many years, she was only 27 in making money. One day, she had a terrible car accident. It took her ten months to get 28 . During that time, this girl decided to do some more 29 things for this world.
As soon as Julia left the hospital, she gave up the job at the restaurant. Then she moved to California. One day, she 30 that a big company planned to cut down part of a forest. In the forest, there were lots of redwood trees. One of the trees was more than 1,000 years old.
A group called Our Earth was trying to 31 the redwood forest. They wanted to find someone to live around the oldest redwood tree. They hoped this could stop the company from 32 the trees. Julia got this job.
Julia and her partners lived in the 33 for over two years. It was cold and wet. There were even terrible winter storms.
In the end, the company 34 not to cut down the oldest tree. And they also 35 never to cut down redwood trees in the forest. When Julia stepped out of the forest, she began to cry. But she didn’t relax. She would go on doing some other things to protect our 36 .
27．A．strict B．interested C．good D．doctors
28．A．well B．tidy C．relaxing D．serious
29．A．meaningless B．cheap C．meaningful D．expensive
30．A．believed B．met C．heard D．thought
31．A．buy B．save C．know D．plant
32．A．writing down B．going down C．cutting down D．walking down
33．A．company B．forest C．house D．sea
34．A．wanted B．expected C．decided D．hoped
35．A．got B．disagreed C．helped D．agreed
36．A．sky B．earth C．house D．school
五、阅读理解
A
Do you love flowers Today I will tell you something about a kind of beautiful flower—sunflowers.
A sunflower is a big, round, yellow flower. Sunflowers need a lot of sunlight to grow. In fact, sunflowers are made up of (由……构成) many small flowers. The central part is made up of one kind of flower, and the petals (花瓣) around it are another kind of flower.
We use sunflowers in different ways. One thing we do with them is to look at them! Many people plant them in gardens because they are so big, bright and colorful. They can also be cut and brought inside. They will last (维持) a long time in a vase (花瓶).
Sunflower seeds are delicious. People, birds, and other animals love to eat sunflower seeds. They can be difficult to be eaten (被吃掉) because of the shell, but they are rich in protein (蛋白质) and are good for health. Sunflower seeds also have a lot of oil. Many people use sunflower oil for cooking. The food tastes very nice after people use it.
Sunflowers are beautiful flowers, and they give us and other animals food. But be careful of the rough (粗糙的) stems, or they will hurt you.
37．Which is TRUE about a sunflower according to Paragraph 2
A．It is very small. B．It is made up of one kind of flower.
C．It has no petals. D．Its shape is round.
38．What does the underlined word “they” refer to
A．People. B．Birds and animals.
C．Sunflower stems. D．Sunflower seeds.
39．We may find the passage from the ________ part of a newspaper.
A．plant B．food C．animal D．health
B
Trees are one of the oldest plants of our Earth. They keep the air clean, make less noise pollution, make water cleaner and provide food and building materials.
Just like us, trees change a lot as they grow. At one to three years old, young trees learn how to protect themselves. For example, many trees grow thorns to stop animals from going near.
At the age of four, trees begin to grow very quickly and become strong enough to face many difficulties later in life. At the age of 15, trees become young adults. They grow more slowly and begin to produce flowers and fruit.
When a tree is 20 to 25 years old, it becomes a real adult. The tree reaches its largest size. Not only does the adult tree give us shade (树荫), oxygen and natural beauty, it is also a great place for a tree house, or a place for us to read a book. If the adult tree can have a good care, it will go on to live healthily for many years.
Little by little, trees begin to grow older and older and even die. At this time, they still have their important place in nature. When a tree becomes hollow (空心的) or part of it becomes dead, it becomes a home to small animals and a source (来源) of food for many other animals.
In many ways, the life of a tree is similar to our own life experience. When looking at the life of a tree, we learn that each period (时期) of life brings its own kind of happiness and difficulties. Enjoy every minute of the life of trees and take care of them.
40．What does the underlined word “thorns” in Paragraph 2 mean in Chinese
A．花蕾 B．刺 C．树皮 D．树冠
41．Which is the correct order of the life of a tree
a. grow more slowly. b. grow older and die. c. become a real adult.
d. produce flowers and fruit. e. grow thorns to protect itself.
A．a-c-e-d-b B．a-d-e-c-b C．e-a-c-d-b D．e-a-d-c-b
42．What can we learn from this passage
A．The life of trees is the same as the life of people.
B．Older trees can make great places for people to rest.
C．You can find a lot of flowers and fruit on young adult trees.
D．An adult tree can live long and well if we all learn how to protect them.
43．What’s the structure of the passage (①=Paragraph 1 …)
A． B． C． D．
C
There is a seed (种子). He is so small that nobody wants to look at him. 44
One day, a wind brings him to a field in the sun. He looks around and a spatter of rain comes to him. Then he grows up. Four years later, a man sits under him. The man says, “Thank you for this. 45 ”
“What are you talking about ” the seed asks. 46 No one speaks to him like that. “Who is this ” the man asks. “It’s me. I’m a seed.”
“A seed ” the man looks at the big tree. “ 47 You are a tree, a big tree!”
“Really ”
“Yes! People come here to have a rest under your shade (树荫).”
Hearing this, the seed, now a tree, is very happy. “Oh! That means I’m not a small seed any more. 48 Wow! Everybody comes to me for my shade because I am a big tree now!”
A．I can help people.
B．You are not a seed.
C．So the seed doesn’t think he is important.
D．I really need some rest.
E．Someone planted the seed in a field.
F．The seed can grow well.
G．He thinks the man is laughing at (嘲笑) him.
六、短文填空
短文填词。
Good evening! I’m Rebecca. This week on The Natural World, we’ll have a detailed look at how trees support one another. Trees have quite long roots which are used to c 49 with each other. When a tree is in trouble, it can send out messages t 50 its roots and receive assistance. Older trees o 51 food and water to the younger ones. The younger trees also give a hand to the older ones. Most trees s 52 things only with the ones of the same type. But some are kind enough to help those that are not related. When their b 53 and leaves come together, they can better deal with strong winds. Isn’t this very wonderful Next week, I’ll introduce some famous trees in China.
七、书面表达
54．随着社会的发展进步，环境保护越来越引起重视。我们认识到了树木在保护环境中的重要作用，知道树木可以美化环境，净化空气。树木对我们很重要。请根据以下提示，以“Why are trees important ” 为题写一篇英语短文，不少于70词。
提示：be home to, keep the air…
provide, make the environment more…
Why are trees important
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
/ 让学习更有效 暑假打卡计划 | 英语学科
试卷第1页，共3页
试卷第1页，共3页
参考答案
1．A
【详解】句意：Mary 通常在晚上8:30完成她的作业。
考查动词时态和主谓一致。finishes完成（第三人称单数形式）；finish完成（动词原形）；finishs错误拼写；finishing完成（现在分词）。根据“usually”可知，此处用一般现在时，且主语“Mary”是第三人称单数，谓语动词用finishes。故选A。
2．C
【详解】句意：听！鸟正在树上唱歌。
考查动词时态。根据“Listen!”可知，句子要用现在进行时，表示动作正在进行，结构为be+doing，所以，应为are singing。故选C。
3．B
【详解】句意：——你能告诉我一些关于那些椅子的事吗？——当然。它们是由硬木制成的。
考查动词短语。made from由……制成，从制成品中看不出原材料；made of由……制成，从制成品中能看出原材料；made into被制成……（形状）；made in在……生产，后接地点。根据空后的“hard woods”可知，此处指制作原料，且表示从制成品中能看出原材料，B项符合。故选B。
4．A
【详解】句意：许渊冲以翻译中国经典名著而闻名。他把中国文化传播到世界各地。
考查名词辨析。translation翻译；painting绘画；handwriting书法；communication交流，沟通。结合句子 “Xu Yuanchong is known for his...of Chinese classics. He spread Chinese culture to the world.”可知，许渊冲将中国经典 “翻译” 从而传播文化。故选A。
5．C
【详解】句意：马老师总是鼓励我们善良、温暖地对待彼此。
考查动词辨析。to connect联系；to repeat重复；to treat对待；to deal处理。根据“each other with kindness and warmth.”可知，空处表达“对待”，treat each other“对待彼此”，encourage sb. to do sth.“鼓励某人做某事”。故选C。
6．B
【详解】句意：因为互联网，新闻似乎比我们预期的传播得更快。
考查动词辨析。remain保持；spread传播；disappear消失；stretch伸展。根据“Because of the Internet, the news seems to…more quickly than we expected”可知，此处指新闻传播得快，所以应该用spread。故选B。
7．B
【详解】句意：让我们挪开这块大石头，否则可能引起交通事故。
考查名词辨析。event指重大的事件、活动等；accident事故；environment环境；affair事务、事情。根据“Let’s move away the big stone, or there may be a traffic…”可知，此处指的是引起交通事故，故选B。
8．C
【详解】句意：住在这里很方便。附近有一个购物中心和一个大超市。
考查形容词辨析。traditional传统的；terrible糟糕的；convenient方便的；surprised感到惊讶的。根据“There is a shopping mall and a big supermarket near here.”可知，附近有购物中心和超市，说明生活便利。故选C。
9．C
【详解】句意：中国有许多节日，例如，儿童节在6月1日。
考查介词短语。such as例如，用于列举，后面直接跟例子，不加逗号；like比如，用于举例时，后无逗号；just like正如；for example例如，一般列举一件事，后面一般用逗号隔开。根据“Children’s day is on June 1st.”可知，此处举儿童节为例，且空后有逗号。故选C。
10．B
【详解】句意：——树木对我们真的很重要。——是的，我无法想象生活在一个没有树木的世界。
考查非谓语动词和介词的使用。“imagine”常见用法是“imagine doing sth”，表示“想象做某事”，这里说“无法想象生活在……”，要用动词live的动名词形式living。且上文提到“Trees are really important to us”，所以这里表达的是无法想象生活在“没有”树的世界，“没有”用介词without。故选B。
11． by accident fell into
【详解】根据中英文对照可知，空处缺少“偶然”和“掉进”，“偶然”的英文表达是by accident；“掉进”的英文表达是fall into，根据中文提示可知，句子时态是一般过去时，fall的过去式是fell，故填by；accident；fell；into。
12． called on
【详解】根据中英文提示可知，此处使用“号召某人做某事”对应的英文表达“call on sb. to do sth.”；句子描述的是过去发生的事情，时态为一般过去时，动词要用过去式。故填called；on。
13． Thank you for
【详解】thank you for doing sth“感谢你做某事”，固定句型。故填Thank；you；for。
14．In fact
【详解】根据题干可知，空处缺少 “实际上”，应用短语in fact表示，句首单词首字母要大写。故填In fact。
15． preparing for
【详解】prepare sth. for...“为……准备某物”，为固定短语；根据语境可知，此句用现在进行时，are后接现在分词preparing作谓语。故填preparing；for。
16． such as
【详解】对照中英文可知，缺少“例如”，且空后无逗号，用such as，介词短语。故填such；as。
17．C 18．D 19．B 20．D 21．D 22．A 23．B 24．D 25．D 26．C
【导语】本文主要介绍了树木年轮的重要性。
17．句意：许多产品，例如铅笔是由树木制成的。
in在……里面；from来自；of属于……的；with和。根据“Lots of products, like pencils are made…trees.”可知，此处为固定短语be made of“由……制成（原材料显而易见）”。故选C。
18．句意：但是，只有在它们还活着的情况下，它们才能给我们这些。
our我们的，形容词性物主代词；ours我们的，名词性物主代词；we我们，主格；us我们，宾格。根据“However, they can give…these only if they are alive.”可知，位于动词后应用人称代词宾格us。故选D。
19．句意：因此，人们必须做些事情来保持它们健康。
health健康，名词；healthy健康的，形容词；luck幸运，名词；lucky幸运的，形容词。根据“So people have to do something to keep them…．”可知，树对人类很重要，因此人类要保持树的健康，应用形容词healthy作宾语补足语。故选B。
20．句意：因此，人们花了很多时间和金钱来研究树木。
to make制造，动词不定式；making制造，现在分词；to study学习，动词不定式；studying学习，动名词。根据“Therefore, people spend much time and money…trees.”可知，树很重要，所以需要花时间去研究学习，此处为固定短语spend time doing sth“花时间做某事”，应用study的动名词形式。故选D。
21．句意：他们发现，树在阳光和雨水充足的气候下生长得最好，而很少的阳光或雨水会阻止树的生长。
little少的，修饰不可数名词；few少的，修饰复数名词；many很多，修饰复数名词；much很多，修饰不可数名词。根据“They found that the tree would grow best in a climate (气候) with…sunlight and rain, and little sunlight or rain would stop the growth of a tree.”可知，树需要很多阳光和雨水，此处修饰不可数名词sunlight应用much。故选D。
22．句意：你应该从外到内数树干的年轮。
from从；between在……之间；for为了；as作为。根据“You should count the rings of a tree trunk…the outside to the inside.”可知，此处为固定搭配from…to…表示“从外到内”。故选A。
23．句意：如果第十圈远离其他年轮，则一定有很多阳光和雨。
an一个，用于修饰以元音音素开头的词，表泛指；the这个/那个，定冠词，表特指；/零冠词；a一个，用于修饰以辅音音素开头的词，表泛指。根据“If…tenth ring is far from the other rings, there must…lots of sunlight and rain.”可知，此处特指第十圈树木年轮，应用定冠词the修饰。故选B。
24．句意：如果第十圈远离其他年轮，则一定有很多阳光和雨。
am是，主语为I；is是，主语为第三人称单数；are是，主语为第一、三人称复数或第二人称；be是，动词原形。根据“If…tenth ring is far from the other rings, there must…lots of sunlight and rain.”可知，位于情态动词must后用动词原形。故选D。
25．句意：他们突然离开了。
are leaving离开，现在进行时；leave离开，动词原形；will leave离开，一般将来时；left离开，过去式。根据“You can find only sand now in one place of New Mexico. However, there were millions of people in the past. They…suddenly.”可知，时态为一般过去时，用动词过去式。故选D。
26．句意：一群科学家在那里研究了枯树的年轮模式，他们发现人们离开是因为他们砍伐了所有的树木来燃烧和建造房屋。
burning燃烧，动名词；burn燃烧，动词原形；to burn燃烧，动词不定式；to burning燃烧。根据“because they destroyed (破坏) all the trees…and build houses.”可知，此处是指他们摧毁树木是为了拿来燃烧，应用动词不定式表目的。故选C。
27．B 28．A 29．C 30．C 31．B 32．C 33．B 34．C 35．D 36．B
【导语】本文讲述了朱莉娅在遭遇车祸后大彻大悟，从一心赚钱到为保护环境而做出努力的转变。
27．句意：多年来，她只对赚钱感兴趣。
strict严格的；interested感兴趣的；good好的；doctors医生。根据“making money”可知，朱莉娅的人生只以挣钱为兴趣。be interested in sth“对做某事感兴趣”，固定搭配。故选B。
28．句意：她花了十个月时间才得以康复。
well身体好的；tidy整洁的；relaxing令人放松的；serious严重的。根据“As soon as Julia left the hospital, she gave up the job at the restaurant”可知，朱莉娅最终伤愈出院了，故此处说的是花了十个月时间身体才变好。故选A。
29．句意：在那段时间里，这个女孩决定为这个世界做一些更有意义的事情。
meaningless毫无意义的；cheap便宜的；meaningful有意义的；expensive昂贵的。根据下文她为了不让红杉树被砍所做的事情可推测，此处说的是这个女孩决定为这个世界做一些更有意义的事情。故选C。
30．句意：一天，她听说一家大公司计划砍伐一部分森林。
believed相信；met遇见；heard听说；thought想。根据“a big company planned to cut down part of a forest.”可知，这个消息是听来的，所以后面她做了件有意义的事情。故选C。
31．句意：一个叫“我们的地球”的组织试图拯救红杉林。
buy买；save拯救；know知道；plant种植。根据“They hoped this could stop the company”可知，该组织试图拯救红杉林不被砍伐。故选B。
32．句意：他们希望这能阻止公司砍伐树木。
writing down写下；going down下降；cutting down砍伐；walking down沿着……走。根据“not to cut down the oldest tree.”可知，他们是为了阻止公司砍伐树木。故选C。
33．句意：朱莉娅和她的伙伴们在森林里生活了两年多。
company公司；forest森林；house房子；sea大海。根据“They wanted to find someone to live around the oldest redwood tree”可知，朱莉娅在红杉林里住了两年多。故选B。
34．句意：最后，公司决定不砍掉这棵最老的树。
wanted想要；expected期望；decided决定；hoped希望。他们的坚持最终换来了大公司的妥协，公司决定不砍掉这棵最老的树。故选C。
35．句意：他们也同意不砍伐森林中的红杉树。
got得到；disagreed不同意；helped帮助；agreed同意。根据上文“In the end, the company…not to cut down the oldest tree”和“also”可知，公司妥协了并也同意不砍伐森林中的红杉树。故选D。
36．句意：她会继续做一些其他的事情来保护我们的地球。
sky天空；earth地球；house房子；school学校。根据“Our Earth”和朱莉娅所做的事情可知，她保护了红杉树没有被砍伐，也就是保护了地球环境没有被破坏。故选B。
37．D 38．C 39．A
【导语】本文主要介绍了向日葵的生长以及各种用途。
37．细节理解题。根据“A sunflower is a big, round, yellow flower.”可知，向日葵的形状是圆的。故选D。
38．词义猜测题。根据“But be careful of the rough (粗糙的) stems, or they will hurt you.”可知要小心粗糙的茎，否则它们会伤害你，这里的they指的是前面提到的“Sunflower stems.”。故选C。
39．推理判断题。本文主要讲述了向日葵这种植物，因此可以在报纸的植物部分找到。故选A。
40．B 41．D 42．D 43．B
【导语】本文讲述了树木的生命周期及其在自然界中的重要性，以及树木与人类生命的相似之处。
40．词义猜测题。根据“many trees grow thorns to stop animals from going near”可知，thorns的作用是阻止动物靠近，因此它的中文意思是“刺”。故选B。
41．细节理解题。根据“At one to three years old, young trees learn how to protect themselves. For example, many trees grow thorns to stop animals from going near.”可知树在一到三岁时会长刺保护自己，对应e；根据“At the age of four, trees begin to grow very quickly and become strong enough to face many difficulties later in life. At the age of 15, trees become young adults. They grow more slowly and begin to produce flowers and fruit.”可知树在四岁开始快速生长，15岁成为年轻的成年树，生长更缓慢并开始开花结果，所以先a后d；根据“When a tree is 20 to 25 years old, it becomes a real adult.”可知20到25岁成为真正的成年树，对应c；根据“Little by little, trees begin to grow older and older and even die.”可知最后树会变老并死亡，对应b。所以顺序是e-a-d-c-b。故选D。
42．细节理解题。根据“If the adult tree can have a good care, it will go on to live healthily for many years.”可知，成年树如果得到良好的照顾，可以健康地活很多年。故选D。
43．篇章结构题。通读文章可知，第一段介绍了树是地球上最古老的植物之一以及树的作用；第二段到第五段分别介绍了树在不同生长阶段的特点和变化；第六段总结，通过树的生命我们学到生命的每个时期都有自己的快乐和困难，要享受树生命的每一分钟并照顾好它们。故选B。
44．C 45．D 46．G 47．B 48．A
【导语】本文主要讲述了一颗种子没有意识到自己已经成长为一颗大树了，在他人的提点下，知道自己也有帮助别人的力量了。
44．根据“There is a seed (种子). He is very small and nobody wants to look at him”可知种子很小，没人想看他。选项C“所以种子认为他不重要。”符合语境，故选C。
45．根据“Then he grows up. Four years later, a man sits under him.”以及男人的感谢可知，它帮助了男人。选项D“我真的需要好好休息一下。”符合语境，故选D。
46．根据“No one speaks to him like that.”可知它第一次听到这样的话，选项G“他认为那个人在嘲笑他。”符合语境，故选G。
47．根据“It’s me. I’m a seed”和“You are a tree, a big tree!”可知它不再是种子了，而是一颗大树，选项B“你不是种子。”符合语境，故选B。
48．根据“Wow! Everybody comes to me for my shade because I am a big tree now!”可知它很高兴，可以帮助到人们了，选项A“我可以帮助别人。”符合语境，故选A。
49．(c)ommunicate 50．(t)hrough 51．(o)ffer 52．(s)hare 53．(b)ranches
【导语】本文主要讲述了丽贝卡在《自然世界》节目中详细介绍了树木如何相互支持。
49．句意：树有相当长的根，这些根是用来相互交流的。根据下文“When a tree is in trouble, it can send out messages”和首字母提示可知，此处表达的是“这些根被用来相互交流”，communicate with意为“与……交流”，固定短语，动词不定式to后接动词原形，故填(c)ommunicate。
50．句意：当一棵树陷入困境时，它能够通过自己的根发出信息并获得帮助。根据“send out messages…its roots”和首字母提示可知，此处应表示“通过它的根发出信息”，through意为“通过、凭借”，符合语境，故填(t)hrough”。
51．句意：年长的树为年幼的树提供食物和水。根据“Older trees…food and water to the younger ones”和首字母提示可知，此处表达的是“年长的树给年幼的树提供食物和水”，offer sth. to sb.是固定搭配，意为“给某人提供某物” ；句子时态为一般现在时，主语是Older trees，是复数形式，谓语动词用原形，故填(o)ffer。
52．句意：大多数树只和同类型的树分享东西。根据“Most trees…things only with the ones of the same type”和首字母提示可知，此处表达“大多数树只和同类型的树分享东西”，share意为“分享”， 符合语境；句子时态为一般现在时，主语是Most trees，是复数形式，谓语动词用原形，故填(s)hare。
53．句意：当它们的树枝和树叶聚集在一起时，它们能够更好地应对强风。根据“their…and leaves come together, they can better deal with strong winds.”和首字母提示可知，此处应表示“树的树枝和树叶聚在一起能更好地应对强风”，用复数形式branches“树枝”，符合语境，故填(b)ranches。
54．例文
Why are trees important
Trees are important to us. They help us in many ways.
First, they keep the air cool and clean. They take in harmful gases and produce oxygen. They are major fighters against air pollution. Second, trees are home to different animals, insects, birds and plants. Third, trees provide many things for us, such as paper, fruit, oil and tea. Fourth, trees can make the environment more beautiful. In many cities, people plant trees on both sides of the roads or streets to make the city more beautiful. Fifth, trees can stop soil from running away with rain.
Trees are important and useful in our daily lives. We must protect them well.
【详解】[总体分析]
① 题材：本文是一篇话题作文。
② 时态：时态主要为“一般现在时”。
③ 提示：注意行文连贯，逻辑清晰，无拼写和语法错误。
[写作步骤]
第一步，点明树很重要，引出下文树的作用；
第二步，详细说明树的作用，包括吸收有害气体和为人们提供许多东西等；
第三步，呼吁大家保护树木。
[亮点词汇]
①take in harmful gases吸收有害气体
②are home to是……的家园
③provide many things for us为我们提供许多东西
④such as例如
⑤stop soil from running away防止土壤流失
[高分句型]
① In many cities, people plant trees on both sides of the roads or streets to make the city more beautiful. (to do不定式作目的状语)
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