Unit 4 Save the trees.复习预测卷（含解析）
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Unit 4·复习预测卷
(满分100分,限时60分钟)
Ⅰ.语法选择(每小题2分,共20分)
阅读短文,选出填入空白处的最佳选项。
Do you know about the Amazon rainforest It is home to many different kinds of animals and plants.
Chico was born near the Amazon rainforest in Brazil in 1944 and got 1 job when he was very young. He made money by 2 a little rubber (橡胶) from the trees in the forest. The forest and its people lived together comfortably.
But some people only thought about 3 and never thought about the future. In 1980, they 4 the forest to build roads,houses and factories. Chico was angry, and he wanted 5 the forest. He talked to the government (政府) workers, 6 they didn't listen to him. Then he held group meetings.
He found lots of people agreed with him. His hope grew. 7 people came together to stop the work of the forest destroyers (破坏者). They saved large areas of the forest. Later, he traveled to 8 countries for help. A lot of people in those countries were very interested in this brave Brazilian.
Chico became famous all over the world. The government of Brazil started making plans to protect the Amazon rainforest. Unluckily, Chico died right outside his home 9 December 22, 1988. His life was cut short, but people would remember him for protecting rainforests.
10 would you do to protect the forests in your country after hearing the story
1.A.a B.an C.the
2.A.take B.taking C.took
3.A.their B.them C.themselves
4.A.burn B.burns C.burnt
5.A.saves B.to save C.saving
6.A.or B.but C.so
7.A.Many B.Much C.Few
8.A.the others B.another C.other
9.A.with B.on C.in
10.A.Why B.Where C.What
Ⅱ.完形填空(每小题2分,共20分)
There was a small and very beautiful village. It was near a mountain. There were a lot of 11 and animals in the mountain. People in the 12 always got things from the mountain. When they wanted to 13 a house, they cut down many trees. They also killed the animals and ate their 14 .
Trees were very 15 in their daily life. They made tables, chairs and beds with the trees. When they 16 food, they also used wood from the trees. Every year, they cut down lots of trees. And they only cut down trees but 17 planted new trees. There were fewer and fewer trees in the mountain. Some animals went away and others were in great danger.
One day, it rained heavily in the village. The 18 weather lasted for about a week. The soil (土壤) and the stones on the mountain 19 and soon covered the village. The people in the village had no place to live. They finally knew they shouldn't cut down trees. Trees were very important to them. From then on, they plant many trees and 20 them.
11.A.flowers B.trees
C.branches D.roots
12.A.river B.mountain
C.village D.city
13.A.build B.find
C.paint D.leave
14.A.vegetables B.clothes
C.fruit D.meat
15.A.wonderful B.successful
C.beautiful D.useful
16.A.caught B.bought
C.cooked D.washed
17.A.never B.always
C.often D.usually
18.A.bad B.nice
C.hot D.cold
19.A.cut down B.fell down
C.put down D.sat down
20. A.fight B.produce
C.protect D.dig
Ⅲ.阅读理解(每小题3分,共15分)
①Can trees talk Some scientists find that trees can really “talk”!
②Some trees use chemicals (化学物质) to talk. When insects attack them, they gives out chemicals from the leaves. This is like a call for help—“I'm being attacked!” Some of these chemicals drive insects away. Others can call birds to come to kill the insects. Scientists hope to learn more about this so that we can use it to keep insects away from crops like rice.
③More surprisingly, trees also use sound to talk. People can't hear these sounds, but trees are making them. Some plants make noises with their roots. Some trees make noises when there is not enough water.
④Most surprisingly of all, trees have an “Internet” to give out and get information in a big forest. Scientists call it the “Wood Wide Web” (树联网). The fungi (真菌) underground help build up the “Wood Wide Web” among the roots of different trees. It is just like the Internet we use. Using the “Wood Wide Web”, trees can share information and even food with each other. However, it may also be harmful. Some trees may use it to take too much food from others, or give out chemicals to hurt other plants. Perhaps one day scientists will learn how to build a “Great Wall” to help stop these.
⑤Trees talk to each other in different ways. Now, scientists are learning more about these ways and maybe one day we will be able to “talk” with trees ourselves.
21.Trees can “talk” in different ways. How many ways does the passage show
A.One. B.Two. C.Three. D.Four.
22.What does the word “attack” mean in Paragraph 2
A.Hurt. B.Burn.
C.Protect. D.Catch.
23.Why may trees make noises according to Paragraph 3
A.They want to use chemicals.
B.They need more water to keep alive.
C.They would like to share information.
D.They wish people to hear their sound.
24.If there is no rain for a long time, what disadvantage (坏处) may the “Wood Wide Web” bring
A.Insects may eat more leaves.
B.Fungi may not be able to work.
C.Some trees may take in water from others.
D.Scientists may build up a wall in the forest.
25.What is the structure of the passage
Ⅳ.根据句意及汉语或首字母提示写出单词(每小题2分,共10分)
26.In a forest, people can have more (氧气) to breathe.
27.Let's (讨论)the importance of trees.
28.The (气体) from the paper factory smells very bad.
29.Some forests are in danger, so people are trying to s them.
30.To have a better living environment, we must fight a pollution.
Ⅴ.根据汉语意思完成句子,每空一词(每小题2分,共10分)
31.他腿不好,因此走得慢。
He walked slowly his bad leg.
32.在公共汽车上看书对我们的眼睛有害。
Reading on the bus our eyes.
33.这款美味的果汁是由苹果、葡萄和橙子制成的。
This delicious juice apples, grapes and oranges.
34.结果,他向那位老太太道了歉。
, he apologized to the old lady.
35.我会竭尽全力帮助你。
I will you.
Ⅵ.书面表达(共25分)
假如你是李华,学校为了号召学生爱护树木,保护森林,将开展一次以“Protecting trees”为题的英语演讲比赛,请写一篇演讲稿参加比赛。
内容包括:
1.树木的重要性;
2.保护树木或森林的方法(3种及以上);
3.发出号召。
要求:
1.词数60—80,文章开头和结尾已给出,不计入总词数;
2.短文需要包括所给内容信息。可以适当增加细节,使行文连贯。
Good afternoon, everyone,
I'm so glad to stand here and give my speech. My name is Li Hua. The topic of my speech is “Protecting trees”.
That's all! Thanks for your attention.
答案
Ⅰ.[语篇解读] 本文主要讲述了出生在巴西的奇科是如何保护森林,以及他的生命虽然短暂,但他改变了人们的思想。
1.A a一个,不定冠词,表泛指,用于辅音音素开头的单词前;an一个,不定冠词,表泛指,用于元音音素开头的单词前;the这/这些,定冠词,表特指。分析句子可知,此处泛指一份工作,且job是辅音音素开头的单词,其前应使用不定冠词a修饰。故选A。
2.B 句意:他从森林里的树上取一点橡胶来赚钱。take取,动词原形;taking取,动词-ing形式/现在分词;took取,动词过去式。分析句子可知,介词by之后跟名词或动词-ing形式。故选B。
3.C 句意:但有些人只考虑自己,从不考虑未来。分析句子可知,主语和宾语是同一人称,所以此处使用反身代词作宾语。think about oneself“考虑自己”。故选C。
4.C 句意:1980年,他们烧毁森林来修建道路、房屋和工厂。burn燃烧,动词原形;burns燃烧,动词的第三人称单数形式;burnt燃烧,动词的过去式/过去分词。根据时间状语“In 1980”可知,句子时态为一般过去时,谓语动词应使用过去式。故选C。
5.B saves拯救,动词的第三人称单数形式;to save拯救,动词不定式;saving拯救,动词-ing形式。分析句子可知,此处使用固定短语want to do sth.表示“想做某事”。故选B。
6.B 句意:他和政府工作人员谈过,但他们不听他的。or或者,表选择;but但是,表转折;so因此,表结果。分析句子可知,“他和政府工作人员谈过”与“他们不听他的”前后分句之间是转折关系,使用but连接,符合语境。故选B。
7.A many许多,修饰可数名词复数;much许多,修饰不可数名词;few很少,几乎没有,修饰可数名词复数。分析句子可知,此处修饰表示复数意义的people,结合下文“They saved large areas of the forest(他们拯救了大片森林)”可知,许多人参与拯救工作,因此使用many修饰。故选A。
8.C 句意:后来,他前往其他国家寻求帮助。the others其余的,表示在一个范围内的其他全部,后面不加名词;another另一个,其后接可数名词单数;other其他的,常用来修饰名词复数或不可数名词。分析句子可知,此处修饰可数名词复数countries,应使用other。故选C。
9.B 句意:不幸的是,奇科于1988年12月22日死在了家门口。with具有;on主要用于星期、具体日期以及具体某一天的早、午、晚前;in主要用于世纪、朝代、年月、季节和泛指的早、午、晚前。分析句子可知,1988年12月22日是一个具体日期,其前应使用介词on。故选B。
10.C 句意:听了这个故事后,你会做什么来保护你国家的森林 分析句子可知,空处作do的宾语,所以使用What,表示“做什么”来保护森林。故选C。
Ⅱ.[语篇解读] 本文讲一个小村庄的人不断破坏砍伐山里的树木以至于山上的土壤和石头滑下来掩埋了村庄,人们才意识到不该砍伐树木,他们开始种树并保护它们。
11.B 句意:山上有很多树和动物。flower花;tree树;branch树枝;root根。根据“they cut down many trees”可知山上有很多树和动物。故选B。
12.C 句意:村里的人总是从山上得到东西。river河流;mountain山;village村庄;city城市。根据“There was a small and very beautiful village”可知此处指村里的人。故选C。
13.A 句意:当他们想盖房子的时候,他们砍了很多树。build建造;find找到;paint画;leave离开。根据“they cut down many trees”可知砍下许多树是为了建造房子。故选A。
14.D 句意:他们也杀了那些动物并吃了它们的肉。vegetable蔬菜;clothes衣服;fruit水果;meat肉。根据“killed the animals”可知杀死动物,吃动物的肉。故选D。
15.D 句意:树木在他们的日常生活中非常有用。wonderful精彩的;successful成功的;beautiful美丽的;useful有用的。根据“They made tables, chairs and beds with the trees”可知树能制作桌子、椅子和床,是有用的。故选D。
16.C 句意:当他们做饭时,他们也用取自树上的木头。catch抓住;buy买;cook烹饪;wash洗。根据“food”可知此处指做饭,用cooked。故选C。
17.A 句意:并且他们只砍树,从不种新树。never从不;always总是;often经常;usually通常。根据“There were fewer and fewer trees in the mountain”可知树越来越少,应是从不种新树。故选A。
18.A 句意:恶劣的天气持续了大约一个星期。bad坏的;nice好的;hot热的;cold冷的。根据“One day, it rained heavily in the village”可知此处指连续一周下大雨,天气恶劣,用bad。故选A。
19.B 句意:山上的泥土和石头落了下来,很快就覆盖了村庄。cut down砍倒;fall down落下;put down放下;sit down坐下。根据“soon covered the village”可知山上的泥土和石头落下来了。故选B。
20.C 句意:从那时起,他们种了很多树并保护它们。fight打架;produce生产;protect保护;dig挖。根据“They finally knew they shouldn't cut down trees. Trees were very important to them”可知村民们意识到了树的重要性,会保护树。故选C。
Ⅲ.[语篇解读] 本文是一篇说明文,主要讲了树以不同的方式相互交流。
21.C 细节理解题。根据第二段中“Some trees use chemicals to talk”,第三段中“More surprisingly, trees also use sound to talk”和第四段中“Most surprisingly of all, trees have an ‘Internet’ to give out and get information in a big forest”可知树可以通过化学物质、声音和“树联网”来“说话”,文章共展示了三种方式。故选C。
22.A 词义猜测题。根据第二段中“When insects attack them, they give out chemicals from the leaves”可知树呼救是因为它们受到了伤害,所以推测attack是“攻击,伤害”,与hurt同义。故选A。
23.B 细节理解题。根据第三段中“Some trees make noises when there is not enough water”可知一些树发出声音是需要水。故选B。
24.C 推理判断题。根据第四段中“However, it may also be harmful. Some trees may use it to take too much food from others, or give out chemicals to hurt other plants”可推测当缺水时,一些树可能会汲取别的树的水。故选C。
25.A 文章结构题。通读文章可知,第一段总体讲树会交流,第二、三、四段分别讲了树用化学物质、声音、“树联网”来交流,最后一段总结树用不同的方式交流。故选A。
Ⅳ.26.oxygen 27.discuss 28.gas 29.save 30.against
Ⅴ.31.because of 32.is bad for 33.is made from
34.As a result 35.try/do my best to help
Ⅵ.One possible version:
Good afternoon, everyone,
I'm so glad to stand here and give my speech. My name is Li Hua. The topic of my speech is “Protecting trees”.Trees are essential to our health and the health of our environment. If we don't protect the trees well, how can we live in harmony with nature
To protect the trees we ought to keep in mind that there are many things we can do in our daily life. First of all, we can share the knowledge of protecting trees with others. Secondly, we can choose to use both sides of paper as often as possible so as to protect our forests. Moreover, we must plant as many trees as possible. It's time that we take action to protect the trees.
That's all! Thanks for your attention.
(满分100分,限时60分钟)
Ⅰ.语法选择(每小题2分,共20分)
阅读短文,选出填入空白处的最佳选项。
Do you know about the Amazon rainforest It is home to many different kinds of animals and plants.
Chico was born near the Amazon rainforest in Brazil in 1944 and got 1 job when he was very young. He made money by 2 a little rubber (橡胶) from the trees in the forest. The forest and its people lived together comfortably.
But some people only thought about 3 and never thought about the future. In 1980, they 4 the forest to build roads,houses and factories. Chico was angry, and he wanted 5 the forest. He talked to the government (政府) workers, 6 they didn't listen to him. Then he held group meetings.
He found lots of people agreed with him. His hope grew. 7 people came together to stop the work of the forest destroyers (破坏者). They saved large areas of the forest. Later, he traveled to 8 countries for help. A lot of people in those countries were very interested in this brave Brazilian.
Chico became famous all over the world. The government of Brazil started making plans to protect the Amazon rainforest. Unluckily, Chico died right outside his home 9 December 22, 1988. His life was cut short, but people would remember him for protecting rainforests.
10 would you do to protect the forests in your country after hearing the story
1.A.a B.an C.the
2.A.take B.taking C.took
3.A.their B.them C.themselves
4.A.burn B.burns C.burnt
5.A.saves B.to save C.saving
6.A.or B.but C.so
7.A.Many B.Much C.Few
8.A.the others B.another C.other
9.A.with B.on C.in
10.A.Why B.Where C.What
Ⅱ.完形填空(每小题2分,共20分)
There was a small and very beautiful village. It was near a mountain. There were a lot of 11 and animals in the mountain. People in the 12 always got things from the mountain. When they wanted to 13 a house, they cut down many trees. They also killed the animals and ate their 14 .
Trees were very 15 in their daily life. They made tables, chairs and beds with the trees. When they 16 food, they also used wood from the trees. Every year, they cut down lots of trees. And they only cut down trees but 17 planted new trees. There were fewer and fewer trees in the mountain. Some animals went away and others were in great danger.
One day, it rained heavily in the village. The 18 weather lasted for about a week. The soil (土壤) and the stones on the mountain 19 and soon covered the village. The people in the village had no place to live. They finally knew they shouldn't cut down trees. Trees were very important to them. From then on, they plant many trees and 20 them.
11.A.flowers B.trees
C.branches D.roots
12.A.river B.mountain
C.village D.city
13.A.build B.find
C.paint D.leave
14.A.vegetables B.clothes
C.fruit D.meat
15.A.wonderful B.successful
C.beautiful D.useful
16.A.caught B.bought
C.cooked D.washed
17.A.never B.always
C.often D.usually
18.A.bad B.nice
C.hot D.cold
19.A.cut down B.fell down
C.put down D.sat down
20. A.fight B.produce
C.protect D.dig
Ⅲ.阅读理解(每小题3分,共15分)
①Can trees talk Some scientists find that trees can really “talk”!
②Some trees use chemicals (化学物质) to talk. When insects attack them, they gives out chemicals from the leaves. This is like a call for help—“I'm being attacked!” Some of these chemicals drive insects away. Others can call birds to come to kill the insects. Scientists hope to learn more about this so that we can use it to keep insects away from crops like rice.
③More surprisingly, trees also use sound to talk. People can't hear these sounds, but trees are making them. Some plants make noises with their roots. Some trees make noises when there is not enough water.
④Most surprisingly of all, trees have an “Internet” to give out and get information in a big forest. Scientists call it the “Wood Wide Web” (树联网). The fungi (真菌) underground help build up the “Wood Wide Web” among the roots of different trees. It is just like the Internet we use. Using the “Wood Wide Web”, trees can share information and even food with each other. However, it may also be harmful. Some trees may use it to take too much food from others, or give out chemicals to hurt other plants. Perhaps one day scientists will learn how to build a “Great Wall” to help stop these.
⑤Trees talk to each other in different ways. Now, scientists are learning more about these ways and maybe one day we will be able to “talk” with trees ourselves.
21.Trees can “talk” in different ways. How many ways does the passage show
A.One. B.Two. C.Three. D.Four.
22.What does the word “attack” mean in Paragraph 2
A.Hurt. B.Burn.
C.Protect. D.Catch.
23.Why may trees make noises according to Paragraph 3
A.They want to use chemicals.
B.They need more water to keep alive.
C.They would like to share information.
D.They wish people to hear their sound.
24.If there is no rain for a long time, what disadvantage (坏处) may the “Wood Wide Web” bring
A.Insects may eat more leaves.
B.Fungi may not be able to work.
C.Some trees may take in water from others.
D.Scientists may build up a wall in the forest.
25.What is the structure of the passage
Ⅳ.根据句意及汉语或首字母提示写出单词(每小题2分,共10分)
26.In a forest, people can have more (氧气) to breathe.
27.Let's (讨论)the importance of trees.
28.The (气体) from the paper factory smells very bad.
29.Some forests are in danger, so people are trying to s them.
30.To have a better living environment, we must fight a pollution.
Ⅴ.根据汉语意思完成句子,每空一词(每小题2分,共10分)
31.他腿不好,因此走得慢。
He walked slowly his bad leg.
32.在公共汽车上看书对我们的眼睛有害。
Reading on the bus our eyes.
33.这款美味的果汁是由苹果、葡萄和橙子制成的。
This delicious juice apples, grapes and oranges.
34.结果,他向那位老太太道了歉。
, he apologized to the old lady.
35.我会竭尽全力帮助你。
I will you.
Ⅵ.书面表达(共25分)
假如你是李华,学校为了号召学生爱护树木,保护森林,将开展一次以“Protecting trees”为题的英语演讲比赛,请写一篇演讲稿参加比赛。
内容包括:
1.树木的重要性;
2.保护树木或森林的方法(3种及以上);
3.发出号召。
要求:
1.词数60—80,文章开头和结尾已给出,不计入总词数;
2.短文需要包括所给内容信息。可以适当增加细节,使行文连贯。
Good afternoon, everyone,
I'm so glad to stand here and give my speech. My name is Li Hua. The topic of my speech is “Protecting trees”.
That's all! Thanks for your attention.
答案
Ⅰ.[语篇解读] 本文主要讲述了出生在巴西的奇科是如何保护森林,以及他的生命虽然短暂,但他改变了人们的思想。
1.A a一个,不定冠词,表泛指,用于辅音音素开头的单词前;an一个,不定冠词,表泛指,用于元音音素开头的单词前;the这/这些,定冠词,表特指。分析句子可知,此处泛指一份工作,且job是辅音音素开头的单词,其前应使用不定冠词a修饰。故选A。
2.B 句意:他从森林里的树上取一点橡胶来赚钱。take取,动词原形;taking取,动词-ing形式/现在分词;took取,动词过去式。分析句子可知,介词by之后跟名词或动词-ing形式。故选B。
3.C 句意:但有些人只考虑自己,从不考虑未来。分析句子可知,主语和宾语是同一人称,所以此处使用反身代词作宾语。think about oneself“考虑自己”。故选C。
4.C 句意:1980年,他们烧毁森林来修建道路、房屋和工厂。burn燃烧,动词原形;burns燃烧,动词的第三人称单数形式;burnt燃烧,动词的过去式/过去分词。根据时间状语“In 1980”可知,句子时态为一般过去时,谓语动词应使用过去式。故选C。
5.B saves拯救,动词的第三人称单数形式;to save拯救,动词不定式;saving拯救,动词-ing形式。分析句子可知,此处使用固定短语want to do sth.表示“想做某事”。故选B。
6.B 句意:他和政府工作人员谈过,但他们不听他的。or或者,表选择;but但是,表转折;so因此,表结果。分析句子可知,“他和政府工作人员谈过”与“他们不听他的”前后分句之间是转折关系,使用but连接,符合语境。故选B。
7.A many许多,修饰可数名词复数;much许多,修饰不可数名词;few很少,几乎没有,修饰可数名词复数。分析句子可知,此处修饰表示复数意义的people,结合下文“They saved large areas of the forest(他们拯救了大片森林)”可知,许多人参与拯救工作,因此使用many修饰。故选A。
8.C 句意:后来,他前往其他国家寻求帮助。the others其余的,表示在一个范围内的其他全部,后面不加名词;another另一个,其后接可数名词单数;other其他的,常用来修饰名词复数或不可数名词。分析句子可知,此处修饰可数名词复数countries,应使用other。故选C。
9.B 句意:不幸的是,奇科于1988年12月22日死在了家门口。with具有;on主要用于星期、具体日期以及具体某一天的早、午、晚前;in主要用于世纪、朝代、年月、季节和泛指的早、午、晚前。分析句子可知,1988年12月22日是一个具体日期,其前应使用介词on。故选B。
10.C 句意:听了这个故事后,你会做什么来保护你国家的森林 分析句子可知,空处作do的宾语,所以使用What,表示“做什么”来保护森林。故选C。
Ⅱ.[语篇解读] 本文讲一个小村庄的人不断破坏砍伐山里的树木以至于山上的土壤和石头滑下来掩埋了村庄,人们才意识到不该砍伐树木,他们开始种树并保护它们。
11.B 句意:山上有很多树和动物。flower花;tree树;branch树枝;root根。根据“they cut down many trees”可知山上有很多树和动物。故选B。
12.C 句意:村里的人总是从山上得到东西。river河流;mountain山;village村庄;city城市。根据“There was a small and very beautiful village”可知此处指村里的人。故选C。
13.A 句意:当他们想盖房子的时候,他们砍了很多树。build建造;find找到;paint画;leave离开。根据“they cut down many trees”可知砍下许多树是为了建造房子。故选A。
14.D 句意:他们也杀了那些动物并吃了它们的肉。vegetable蔬菜;clothes衣服;fruit水果;meat肉。根据“killed the animals”可知杀死动物,吃动物的肉。故选D。
15.D 句意:树木在他们的日常生活中非常有用。wonderful精彩的;successful成功的;beautiful美丽的;useful有用的。根据“They made tables, chairs and beds with the trees”可知树能制作桌子、椅子和床,是有用的。故选D。
16.C 句意:当他们做饭时,他们也用取自树上的木头。catch抓住;buy买;cook烹饪;wash洗。根据“food”可知此处指做饭,用cooked。故选C。
17.A 句意:并且他们只砍树,从不种新树。never从不;always总是;often经常;usually通常。根据“There were fewer and fewer trees in the mountain”可知树越来越少,应是从不种新树。故选A。
18.A 句意:恶劣的天气持续了大约一个星期。bad坏的;nice好的;hot热的;cold冷的。根据“One day, it rained heavily in the village”可知此处指连续一周下大雨,天气恶劣,用bad。故选A。
19.B 句意:山上的泥土和石头落了下来,很快就覆盖了村庄。cut down砍倒;fall down落下;put down放下;sit down坐下。根据“soon covered the village”可知山上的泥土和石头落下来了。故选B。
20.C 句意:从那时起,他们种了很多树并保护它们。fight打架;produce生产;protect保护;dig挖。根据“They finally knew they shouldn't cut down trees. Trees were very important to them”可知村民们意识到了树的重要性,会保护树。故选C。
Ⅲ.[语篇解读] 本文是一篇说明文,主要讲了树以不同的方式相互交流。
21.C 细节理解题。根据第二段中“Some trees use chemicals to talk”,第三段中“More surprisingly, trees also use sound to talk”和第四段中“Most surprisingly of all, trees have an ‘Internet’ to give out and get information in a big forest”可知树可以通过化学物质、声音和“树联网”来“说话”,文章共展示了三种方式。故选C。
22.A 词义猜测题。根据第二段中“When insects attack them, they give out chemicals from the leaves”可知树呼救是因为它们受到了伤害,所以推测attack是“攻击,伤害”,与hurt同义。故选A。
23.B 细节理解题。根据第三段中“Some trees make noises when there is not enough water”可知一些树发出声音是需要水。故选B。
24.C 推理判断题。根据第四段中“However, it may also be harmful. Some trees may use it to take too much food from others, or give out chemicals to hurt other plants”可推测当缺水时,一些树可能会汲取别的树的水。故选C。
25.A 文章结构题。通读文章可知,第一段总体讲树会交流,第二、三、四段分别讲了树用化学物质、声音、“树联网”来交流,最后一段总结树用不同的方式交流。故选A。
Ⅳ.26.oxygen 27.discuss 28.gas 29.save 30.against
Ⅴ.31.because of 32.is bad for 33.is made from
34.As a result 35.try/do my best to help
Ⅵ.One possible version:
Good afternoon, everyone,
I'm so glad to stand here and give my speech. My name is Li Hua. The topic of my speech is “Protecting trees”.Trees are essential to our health and the health of our environment. If we don't protect the trees well, how can we live in harmony with nature
To protect the trees we ought to keep in mind that there are many things we can do in our daily life. First of all, we can share the knowledge of protecting trees with others. Secondly, we can choose to use both sides of paper as often as possible so as to protect our forests. Moreover, we must plant as many trees as possible. It's time that we take action to protect the trees.
That's all! Thanks for your attention.