仁爱版八上英语 Unit 4 Our World Topic 1 What's the strongest animal on the farm? Section C 练习（含解析）

仁爱版八上英语 Unit 4 Our World Topic 1 What's the strongest
Section C练习
一、词汇练习
1. 根据所给中文写出相应的英文单词。
雨林 （ ）
厚的 （ ）
表面 （ ）
无处 （ ）
数千 （ ）
控制 （ ）
气候 （ ）
美丽 （ ）
木材 （ ）
药 （ ）
2. 用所给单词的适当形式填空。
It's always __________ (dark) and hot in rainforests.
Rainforests cover 6% of the earth's ________ (surface).
There are thousands and thousands of ________(animal) living in rainforests.
The plants help to make the air ________ (fresh) and cleaner.
We should try ________ (protect) rainforests.
二、短语练习
1. 写出下列短语的中文意思。
thousands of （ ）
die out （ ）
hold the water （ ）
give...a home （ ）
play an important part （ ）
2. 根据中文意思填空。
Many animals are in danger and may ________（灭绝） soon.
________（成千上万） people come to visit this city every year.
The trees can ________（储存水） when it rains.
Rainforests ________（提供一个家园） to many plants and animals.
Computers ________（起重要作用） in our daily life.
三、句子练习
1. 按要求改写句子。
Rainforests are very important to us.（改为一般疑问句）
They provide places to live for thousands of plants and animals.（对划线部分提问）
The plants in the forests help to make the air fresher and cleaner.（改为否定句）
Without rainforests, many beautiful plants and animals would die out.（改为同义句）
We should protect rainforests well.（对划线部分提问）
2. 翻译下列句子。
雨林是地球上的肺。
雨林里的植物有助于使空气更清新、更干净。
我们需要雨林有很多原因。
但是现在，雨林变得越来越小。
我们应该尽力保护雨林。
四、阅读理解
阅读下面的短文，然后回答问题。
Rainforests are wonderful places. They are home to many kinds of plants and animals. The trees in rainforests are very tall. Some are over 90 meters high! The air in rainforests is fresh and clean. It rains a lot in rainforests. That makes the ground always wet.
Rainforests are important to us. They give us wood, fruit, medicine and many other things. They also help to control the climate. But now, rainforests are in danger. People cut down too many trees. Some animals lose their homes. We must do something to protect rainforests.
1. What are rainforests home to
2. How is the air in rainforests
3. Why are rainforests important to us
4. What is happening to rainforests now
5. What should we do to protect rainforests
五、写作练习
假设你是李明，你所在的学校正在举办“保护雨林”的活动，请你根据以下提示，写一篇 80 词左右的短文。
提示：
1. 介绍雨林的重要性；
2. 说明雨林面临的问题；
3. 提出保护雨林的建议。
答案及解析：
一、词汇练习
1. 雨林（rainforest） 厚的（thick） 表面（surface） 无处（nowhere） 数千（thousands of） 控制（control） 气候（climate） 美丽（beauty） 木材（wood） 药（medicine）
2. 用所给单词的适当形式填空。
It's always (dark) and hot in rainforests. 答案：dark 解析：dark 本身可作形容词，此处作表语，无需变化形式。
Rainforests cover 6% of the earth's (surface). 答案：surface 解析：surface 是不可数名词，没有复数形式。
There are thousands and thousands of (animal) living in rainforests. 答案：animals 解析：thousands and thousands of 后接可数名词复数，animal 复数形式为 animals。
The plants help to make the air (fresh) and cleaner. 答案：fresher 解析：根据 and 后的 cleaner，可知此处用比较级，fresh 的比较级为 fresher。
We should try (protect) rainforests. 答案：to protect 解析：try to do sth. 表示“尽力做某事”。
二、短语练习
1. 写出下列短语的中文意思。
thousands of （成千上万的）
die out （灭绝）
hold the water （保持水分）
give...a home （给......一个家）
play an important part （起重要作用）
2. 选择合适的短语并用其正确形式填空。
Many animals are in danger and may （die out） soon. 答案：die out 解析：die out 表示“灭绝”，符合语境。
（Thousands of） people come to visit this city every year. 答案：Thousands of 解析：“Thousands of”表示“成千上万的”，修饰名词 people。
The trees can （hold the water） when it rains. 答案：hold the water 解析：“hold the water”表示“保持水分”，符合句子意思。
Rainforests （give...a home） to many plants and animals. 答案：give...a home 解析：“give...a home”表示“给......一个家”，此处表示雨林给很多动植物提供了家。
Computers （play an important part） in our daily life. 答案：play an important part 解析：“play an important part”表示“起重要作用”，符合句子意思。
三、句子练习
1. 按要求改写句子。
Rainforests are very important to us.（改为一般疑问句）
Are rainforests very important to us 解析：将 be 动词 are 提到句首，构成一般疑问句。
They provide places to live for thousands of plants and animals.（对划线部分提问）
What do they provide for thousands of plants and animals 解析：对“提供的东西”提问用 what，原句是一般现在时，主语 they 是复数，借助助动词 do。
The plants in the forests help to make the air fresher and cleaner.（改为否定句）
The plants in the forests don't help to make the air fresher and cleaner. 解析：一般现在时，主语是复数，否定句借助 don't。
Without rainforests, many beautiful plants and animals would die out.（改为同义句）
If there were no rainforests, many beautiful plants and animals would die out. 解析：without 相当于 if...not，“Without rainforests”相当于“If there were no rainforests”。
We should protect rainforests well.（对划线部分提问）
What should we do well 解析：对“做的事情”提问用 what。
2. 翻译下列句子。
雨林是地球上的肺。Rainforests are the lungs of the earth.
雨林里的植物有助于使空气更清新、更干净。The plants in rainforests help to make the air fresher and cleaner.
我们需要雨林有很多原因。We need rainforests for many reasons.
但是现在，雨林变得越来越小。But now, rainforests are becoming smaller and smaller.
我们应该尽力保护雨林。We should try our best to protect rainforests.
四、阅读理解
1. What are rainforests home to 答案：Many kinds of plants and animals. 解析：文章开头提到“Rainforests are wonderful places. They are home to many kinds of plants and animals.”
2. How is the air in rainforests 答案：The air in rainforests is fresh and clean. 解析：文中提到“The air in rainforests is fresh and clean.”
3. Why are rainforests important to us 答案：They give us wood, fruit, medicine and many other things. They also help to control the climate. 解析：文章中提到“Rainforests are important to us. They give us wood, fruit, medicine and many other things. They also help to control the climate.”
4. What is happening to rainforests now 答案：Rainforests are in danger. People cut down too many trees. Some animals lose their homes. 解析：文中说“But now, rainforests are in danger. People cut down too many trees. Some animals lose their homes.”
5. What should we do to protect rainforests 答案：We must do something to protect rainforests. 解析：文章最后提到“We must do something to protect rainforests.”但没有具体说明具体措施。
五、写作练习
Hello everyone! Rainforests are very important to us. They are like the lungs of the earth. They give us wood, fruit and medicine. They also help control the climate.
But now, rainforests are in trouble. People cut down too many trees. Many animals lose their homes.
To protect rainforests, we should stop cutting down trees. We should also tell more people about the importance of rainforests. Let's try our best to protect them!
解析：短文首先介绍了雨林的重要性，接着说明了雨林面临的问题，最后提出了保护雨林的建议，如停止砍伐树木、向更多人宣传雨林的重要性等，符合写作要求。