Unit 4 Our World
Topic 1 What's the strongest animal on the farm
Section C同步练习
一、单选。
1.I think ____________ important for us ____________ the birds.
A.?it, protect B.?its, to protect C.?it's, protecting D.?it’s, to protect
2.We have planted _____trees today.
A.?thousands of??????????????????B.?thousands??????????????????
C.?two thousands??????????????????D.?thousand of
3. The rivers in the countryside are cleaner than _______ in the city.
A. this B. that C. these D. those
4.As we all know，light travels ________ sound.
A.?as fast as???????????????B.?a little slower than???????????????
C.?much faster than???????????????D.?slower than
5.Lots of animals are in great ________.We should play a part in ________ them.
A.?dangerous; save???????????B.?danger; saving???????????
C.?danger; saved???????????D.?dangerous; saves
6.If we don’t protect the animals in danger, they will______
A. Wake up B.lie down C . come out D .die out
二、完成句子。
1. 有无数动物居住在雨林中。
______ _______ _______ _______animals live in rainforests.
雨林在控制气候方面扮演着重要的角色。
Rainforests_______ _______ _______ _______ _______ _______ the climate.
3.下雨时雨林能能促进水循环。
Rainforests can ______ _______ _______ _______when it rains.
下雨时还能储存水分，促进水循环。
4.如果我们不保护环境，很多漂亮的动植物都会灭绝。
If we don’t protect the environment,many beautiful animals and plants would_______ _______ .
5. 中国正变得越来越强大。
China is becoming _______ _______ _______ .
三、完形填空。
? Long long ago, a famous city was covered by a thick forest, but now there is no forest left. ??? Many animals were living in the city. The 1 ?began to die out. Farmers grew rice and 2 ?pigs and chickens there. They cut down trees and burnt them. They needed 3 ?to keep themselves warm in winter and cook their food. Elephants 4 ?disappeared（消失）because there was not enough food for them. 5 ?did wolves and tigers. Monkeys and other animals soon died out in the same way. ??? You might think that there are no longer any animals in the city 6 ?in the zoos. But there are still over 30 different kinds of animals 7 ?there. One of the animals is the barking deer. They are beautiful little animals 8 ?rich brown fur and a white spot under the tail. They look like deer but they are smaller. They make a noise like a dog 9 . Now there are not many barking deer left. So it is important 10 ?people to protect wild animals. Do you think so?
1. A. people
B. plants
C. vegetables
D. things
2. A. grew
B. made
C. got
D. fed
3. A. sunlight
B. air
C. water
D. fire
4. A. quick
B. quickly
C. fast
D. fastly
5. A. So
B. Such
C. None
D. Nor
6. A. besides
B. except
C. and
D. or
7. A. causing
B. Sailing（航行）
C. chasing
D. living
8. A. have
B. without
C. with
D. get
9. A. barking
B. crying
C. shouting
D. talking
10. A. to
B. for
C. like
D. of
四、阅读。
? Rainforests (热带雨林) cover six percent of the earth's surface (表面). There are rainforests in many parts of the world. About 75 percent of animals live in rainforests. There are many beautiful birds, insects and so on. Some of them live on the ground, some live under the ground and others live in the trees, over 30 meters from the ground. It is always hot in the rainforests and the ground is always wet. It is also very dark there. ??? The rainforests are very important for us. We need them! The trees and other plants in the forest help to make the air clean. They also help to control (控制) the temperature. ??? Unfortunately, in many places, the rainforests are in danger. For example, many years ago there was a large rainforest in Java, but now there is nothing. The same thing happens now in many other parts of the world. It's time to take action to save the rainforests. We can never imagine a world without rainforests. If rainforests disappeared from the earth, we wouldn't find any trees, flowers or fruits. What's more, we wouldn't get clean air, and we wouldn't find any animals. The worst result would be that we wouldn't find any humans.
（1）How many animals live in rainforests?
A.?About thirty percent.??????????????????????????????????????? B.?About ninety percent. C.?About three quarters.?????????????????????????????????????? D.?About seventy-five percent.
（2）The trees and other plants in the forest ______.
A.?make the air dirty?????????????????????????????????????????????B.?control the temperature C.?pollute the rivers??????????????????????????????????????????????D.?stop the noise pollution
（3）What does the underlined word “Unfortunately” mean in Chinese? ??
A.?不幸地????????????????????????????????B.?事实上????????????????????????????????C.?幸运地????????????????????????????????D.?坦白说?
（4）What's the main idea of the last paragraph?
A.?It is about the weather in the rainforests. B.?It is about animals living in the rainforests. C.?It is about people who don't care about animals. D.?It is about the result of not protecting the rainforests.
Unit 4 Our World
Topic 1 What's the strongest animal on the farm
Section C同步练习 答案
DDDCBD
二、1.Thousands and thousands of
2.play an important part in controlling
三、（1）B；（2）D；（3）D；（4）B；（5）A；（6）B；（7）D；（8）C；（9）A；（10）B；
四、（1）D
（2）B
（3）A
（4）D
课件32张PPT。Unit 4 Our World
Topic 1 What's the strongest animal on the farm ?仁爱科普版 八年级上SectionCWarming-upLet's enjoy a video.rainforest热带雨林雨林就是雨水充沛的森林。热带雨林是地球上一种常见于赤道附近热带地区的森林生态系统，主要分布于东南亚、澳大利亚北部、南美洲亚马逊河流域、非洲刚果河流域、中美洲和众多太平洋岛屿。热带雨林是地球上抵抗力稳定性最高的生物群落，常年气候炎热，雨量充沛，全年雨量分配均匀，常年湿润，空气相对湿度95%以上。季节差异极不明显，白天温度一般在30℃左右，夜间约20℃。这里生物群落演替速度极快，是世界上大于一半的动植物物种的栖息地。由于现时有超过25%的现代药物是由热带雨林植物所提炼，所以热带雨林被称为“世界上最大的药房”。同时由于众多雨林植物的光合作用净化地球空气的能力尤为强大，其中仅亚马逊热带雨林产生的氧气就占全球氧气总量的1/3，故有“地球之肺”的美誉。Amazon rainforestthe lungs of the earthLook at the pictures and check which questions the passage can answer. 1aWhat are rainforests?
How many animals are living in rainforests?
Where do animals live in rainforests?
What can we get from rainforests?
Why are rainforests important to us?Listening taskListen and answer. What's the main idea of each paragraph？Para.1Para.2B. The features(特征) of rainforestsA. The importance(重要性) of the rainforests (3) Where do animals live in rainforests? (1) What are rainforests? (2) How many animals are living in the rainforest?Reading task Read para1 and answer the questions. 1 Rainforests are thick forests in the hot parts of the world.
It rains a lot and the ground is always wet.It's always dark and hot in rainforests.Rainforests cover 6% of the earth's surface.
They provide places to live for thousands of plants and animals found nowhere else on Earth.There are lots of tall trees and other different kinds of plants.Thousands and thousands of animals live in rainforests.Many of them live in the trees over 30 meters from the ground.Fill in the chart.Square (面积）: Plants：Animals：Climate：There are thousands and thousands of animals. There are lots of tall trees and thousands of 6hotwet30other different plants.Reading task Read para2 and answer the questions.(4)What can we get from rainforests?
(5)Why are rainforests important to us? 2 Rainforests are very important to us.They are the lungs of the earth.The plants in the forests help to make the air fresher and cleaner.They also help to hold the water when it rains and keep the water cycling.They play an important part in controlling the climate.Rainforests also help to keep the beauty of nature.Without rainforests, many beautiful plants and animals would die out.
Rainforests give us wood, food, fruit, medicine, and many more useful things.We need rainforests for many reasons.But now, rainforests are becoming smaller and smaller, so we should protect them. Listen,look and say.1a( ) 1.Rainforsts cover half of the earth”s surface.
( ) 2.We can everything clearly in rainforests.
( ) 3.Rainforests can give us many useful things.
( ) 4.In rainforests all the animals live on the ground.
( ) 5.Without rainforests,the environment would become quite terrible.FFTFTRead again and mark true (T) or False(F) according to 1a.Reading task Complete the table. Then check with your partner.1bfreshercleanercycling climate naturewoodfoodmedicinehotwetdarkhot6%surfaceplantsanimalsholdLanguage points1. Rainforests cover 6% of the earth’s surface.
1）cover在此作动词，盖，覆盖，遮住，遮盖，掩蔽，盖在…上面。
常用词组cover ......with .......用...盖be covered with.....被...覆盖
A heavy fall of snow covered the ground.一场大雪覆盖了大地。
2）6%读作six percent。数词 % +可数名词复数/可数名词单数 / 不可数名词均可，谓语动词取决于主语。
Eg: 50% of the students in our class are boys.
70% of the earth is water.
2. They provide places to live for thousands of plants and animals found nowhere else on earth.
provide作提供;供给讲时，常用于以下结构：
1）接名词作宾语。
It is said that the management will provide food and drink.
据说管理部门将供应饮食。
2）用于provide sth. for sb.结构，即/"向某人提供某物/"，也可用provide sb.with sth. 结构。这两者意思相同，可互换，但介词不可混淆。
They provided some necessary support for the sufferers.
他们为受难者提供了一些必要的援助。
3. Thousands and thousands of animals live in rainforests.
thousands of plants 数千hundreds of animals 数百
thousands and thousands of 千千万万的
表示不确定数时，hundred 和 thousand 等词后不但要加s，而且还要用of 构成固定词组
表示确定数目时。要在hundred 和 thousand 等词前加一个具体数字，但hundred 和 thousand等词后不要加s，不用of 构成固定词组
There are two hundred students in our school.
Thousands of students are reading in the library.
4. They play an important part in controlling the climate.
control控制--controlled--controlling
play an important part in sth 在某事上扮演着重要的角色;
=play an important part in doing sth 在某事中起重要作用； 参与（某事）其中part可以换role，play an important part/role in sth
Friends play an important part in our lives.
朋友在我们的生活中起重要作用。
He plays an active part in class activities.
他积极参加班级活动。
5. Without rainforests ,many beautiful plants and animals would die out .
without 引导的虚拟语气：表示动作或状态不是客观存在的事实，而是说话人的主观愿望、假设或推测等。
与现在事实相反:?
从句: 动词的过去式（be的过去式一般用were）
主句:would/ should/ could/ might + 动词原形
If I were you, I should study English.
如果我是你，我就学英语了。
If my brother were here, everything would be all right.
6. But now rainforests are becoming smaller and smaller ,so we should protect them.
1)“形容词比较级 + and + 形容词比较级” 越来越……
天气变得越来越暖和了。
The weather gets warmer and warmer.
中国变得越来越强大。
China becomes stronger and stronger.
2)protect vt. 保护，防护。常用词组protect from 使免受
Wearing dark glasses can protect your eyes from the sun.
戴墨镜可以保护眼睛不受阳光刺激。
provide sth to sb= provide sb with sth
thousands of
nowhere else
on earth
different /all kinds of
play an important part in doing sth
keep the water cycling
hold the water
die out
control the climate / weather
in the woods
the lungs of the earthKey phrases 提供...给某人
数以千计的
没有别的地方
在地球上
不同(各）种类的
在...方面起重要作用
保持水份
保持水循环
灭绝
控制气候、天气
在树林中
地球之肺 Read again and answer the questions.1cWhat does the word “cover” mean in Paragraph 1 ?
Why are rainforests the lungs of the earth ?
Why should we protect rainforests well ?
It means “覆盖”.Because the plants in the forests help to make the air fresher and cleaner.Because they help to hold the water and keep the water cycling. They play an important part in controlling the climate.4. Can you guess what the next part of the passage will talk about ?
5. What should we do to protect rainforests ?
Yes. The next part may talk about what we should do to protect rainforests.We should save paper and mustn’t use the chopsticks for only once.The last sentence in a paragraph may tell you what comes next.They provide places to live for thousands of plants and
animals found nowhere else on Earth.rainNow we finally know : Rainforests can:Help to make the air fresher.
Help to control the climate.
Give us wood ,rubber,fruit,medicine
………Now we finally know : Deforestation What’s happening to rainforests now?What can we do to protect the rainforests? Discuss the pictures in groups about how to protect rainforests. Then write a short passage.2show and tell people about … do anything we can，such as … ask people not to …Example Rainforests are very important to us. It is necessary for us to protect them very well. First, we should make people know about the importance of protecting them. Then ask people not to cut down the trees without plans. For us, we should do something as possible as we can. When we have meals, we mustn’t use chopsticks for only once. In the life, use less paper and be sure not to waste it. You can write like this :Summary1. Learn to describe the situation of rainforests and the importance to the earth. 2. Talk about how to protect rainforests.
3. useful phrases: thousands of
control the climate
over = more than
play an important part ( in sth.)
smaller and smaller
......谢谢21世纪教育网（www.21cnjy.com)中小学教育资源网站有大把优质资料？一线名师？一线教研员？
赶快加入21世纪教育网名师合作团队吧！！月薪过万不是梦！！
详情请看：http://www.21cnjy.com/zhaoshang/
