Unit 2 Topic 2 All these problems are very serious.
Section A 同步练习
一、选择题。
1.—Would you like to have _____?
—No, thank you. I’ve had enough.
A.anything more B.something more C.more anything D.more something
2.The Green Great Wall can stop the wind_____ blowing the earth away.
A.to B.from C.of D.with
3.This washing machine is very difficult to use. _____ can learn to use it in a very short time.
A.Somebody B.Anyone C.Nobody D.Everyone
4.--Do you have anything important to say for yourself?
--_____ except sorry.
A. Something B. Nothing C. Anything D. Everything
5.My sister has two skirts. One is yellow, ________ is black.
A. other B. another C. others D. the other
6.--Can you come on Monday or Tuesday?
--I’m afraid _____ day is possible.
A. neither B. either C. some D. any
7.I knocked on the door several times but _____ answered, so I left.
A. somebody B. nobody C. anybody D. everybody
8. - ______ interesting book! Could you lend it to me?
- No problem.
A. What B. What a C. What an D. How
9. -Is there _____ important in today's newspaper?
-Nothing special.
A. everything B. nothing C. something D.anything
4. -Wang Mei had an accident on the way to school. She fell off her bike and got badly hurt.
- _________.
A. That's nothing serious. B. It certainly was. C. I'm sorry for it. D. I'm sorry to hear that.
二、翻译题。
1. 良田变沙漠 ( change into )
2. 树木可以阻止风把泥土吹走。 ( stop… from )
3. 砍树对人类有害。( cut down, be harmful to )
4. 垃圾占据了大量的空间。( take up, space )
三.从方框中选出合适的短语并用适当形式填空。
1.If you don’t pay for the bill , they will ____the electricity supply.
2.Trees can stop the wind_____the earth_______
3.Heavy rain will_____the soil soon if there is no trees
4.A new rule will soon _________to solve the problem.
5.We should plant more trees after we ____some _____
答案：
一、1-5:BBCBD 6-10:ABCDD
二、
1.Rich land has changed into desert.
2.Trees can stop wind from blowing the earth away.
3.Cutting down trees is harmful to human beings.
4.Waste takes up a lot of space.
三、1. cut off 2. blowing away 3. wash away 4.coming into being 5.cut down
课件32张PPT。Unit 2 Loving Our Planet
Topic 2 All these problems are very serious
Section A 仁爱科普 九上Lead insandstorm
It’s a kind of storm caused by sand. What kind of weather it is? [?s?ndst??rm]rainstormsnowstorm3 Do you know how sandstorms come into being? Number
the pictures and talk about the sandstorm in groups.( )( )( )( )( )( )415362wash the earth awaymany treeschange into desertforests gonesandstorms come
into beingcut down treesLong ago, there were lots of trees and forests. But people needed some wood to build houses and do other things, so they cut down the trees day by day. And the forests have gone slowly…PresentationA: What’s the weather like?
B: It’s a sandstorm.
A: How do you like the weather?
B: I think it’s terrible. People can’t see things clearly. And it’s bad for our health…
A: How to prevent it?
B:…Pair workmany trees cut down1. H_____________have cut down many trees.Human beingsNew wordsforests gonewash the earth away2. The forests have gone and the rain washes the earth away.New words3. A lot of rich land has ____________ desert because people have cut down too many trees. changed intoNew words=turn into转换成，变成4. As a result, s_________ come into being.sandstormsNew wordsAsk and answer1. ________ [s?nd] n. 沙
2. sandstorm [?s?ndst?:m] n. ________
3.__________ 转换成，变成（turn into)
4. desert n. ______ v.___________
5. ___________ 人
6.__________ conj. 虽然，尽管，即使
7. reduce [r??dju:s] v.___________
sand沙暴change into沙漠舍弃，遗弃human being减少，减轻althoughNew words Trees are very useful to us. They can help us p_____ the wind from blowing the earth away and stop the s_______ from moving towards the rich land. Trees also s________ water from running away. They can keep a great d______ of water. So we must stop people from c______ down too
many trees. Otherwise a lot of rich land will
change into d_______, l_______ only sand. We must get rid of (摆脱) this kind of bad b______.根据句意及首字母提示完成句子。 revent and ave ealutting esert eaving ehaviorThe boy and girls are talking about —————.
different types of sandstorms
the reasons for sandstorms
sandstorms in different cities 1b Listen to 1a and choose the best answer.Focus on the main idea of the conversation when you listen for the first time.√Pre-readingListen and answer the questions 1.What’s the weather like today ?
It’s bad. The wind is so strong . And the sand really hurts face.
2.What causes these sandstorms ?
People have cut down too many trees.
As a result, a lot of rich land has changed into desert.
3.Do we still need to do something to protect the environment ?
Yes, we do. Although we have built “The Green Great Wall”, we still need to do something to protect the environment .
conj. 虽然，尽管，即使Pre-reading1a Listen, look and say. ReadingTips:
K: wind; sand; anything
M: sandstorms
J: cut down; as a result; change into
M: affect
J: stop…from…; blow… away
K: can be saved
J: wash … away
K: is harmful to; although; do something Act out the dialog in pairs ReadingTrees can stop the wind from blowing the earth away.
A lot of water can be saved by forests.
They can also stop the water from washing the earth away. Trees’ functions
1c Read 1a and complete trees’ functions. Reading1 change into... 变成……
e.g. Water has changed into steam.
水变成了蒸气。
2 stop/prevent sb./sth. (from) doing sth.
阻止某人/某物做某事，from可以省略。
e.g. The heavy snow stopped/prevented the visitors (from) leaving the top of the mountain.
大雪使游人不得不停留在山顶上。Language points3 earth着重指与天空相对的“土地”，还泛指泥土；soil要指用于种植庄稼的“土壤”；ground主要指大地表面；land着重指与河、湖、海洋相对的陆地。
e.g.Put the tree in the hole and fill it with earth again.
把树放进坑里，然后用土重新将坑填满。
Light, water, air and soil are essential to plant life.
光、水分、空气和土壤对植物生长是不可缺少的。
The bag fell on the ground.
那个包掉到地上了。
A lot of good lands have gone.
大片的良田消失了。Language points4 cut down砍倒。
e.g. Don’t cut down any trees.
别砍树木。
注意：cut的现在分词为cutting, 过去式和过去分词均为cut。Language points5 although conj.意为“虽然，尽管”，引导让步状语从句，相当于though, although较正式。e.g. Although/Though he is very tired，he goes on with his work.
虽然他很累，但他还继续工作。
He helped us, although he didn’t know us.
尽管他不认识我们，但他帮助了我们。
注意：在句中使用although或though时，不能同时使用but,但although/though后可用yet 或still等。
Although the question is difficult, he can still answer it. 尽管这个问题很难，他仍能回答上来。加强语气时，通常说even though，而不说even althoughLanguage points由some/any/every/no + body /thing/one/where构成.1、不定代词作主语，谓语动词用单三2、形容词修饰不定代词放其后3、something 用于肯定句或请求疑问句中
anything 用于否定句或疑问句中一、不定代词（副词）的构成：e.g. something二、不定代词的用法:Nobody likes to be untidy.I have something important to tell you.I have something important to tell you. I don’t have anything important to tell you.总结不定代词/副词 somebody, someone, something, somewhere
anybody, anyone, anything, anywhere
none, nobody, nothing, nowhere
everybody, everyone, everything, everywhere
一般情况下用于肯定句一般情况下用于否定句和疑问句表否定含义可用于各种句式1.I have ____ to tell you.
A. important something
B. something importantB形容词修饰不定代词和不定副词时，要放在不定代词/不定副词之后2.Everybody ___ ready for the match.
A. is B. areA不定代词作主语时，谓语动词要用单数。Lily, would you like ___________ to drink?
Cindy is very busy now. She needs _______ to help her.
Is there _________ wrong with your computer?
Jim looked for his pencil-box ____________ , but he didn’t find it.
I stayed at home last week. I didn’t go __________. Use someone, something, anything, somewhere, anywhere to fill in the blanks.something someone anythingsomewhereanywhere 总结不定代词/副词other 其他的（形）
others 其他人/物（名词）
the other (one … the other
一个…另一个…)
one/ some … the others （一个/一些… 剩余的…）
another另一个、又一个other
others
the other
the others
another1. Ｉhave two apples. One is for you, ________ is for your sister.
A. other B. the other
C. the others D. anotherDon’t laugh at _______.
A. other B. the other
C. others D. anotherBCboth （两者）都
neither （两者）都不
either (两者中）任何一者
all （三者以上）都
none （三者以上）都不both neither
either
all
noneMy parents are ______ farmers. ___ of them works in the hospital.
A. all, None B. either, All
C. both, Neither D. both, None C总结不定代词/副词2 Complete the sentences with the correct forms of the given phrases in the box.
as a result, change into, do something,
stop…from, blow…away 1.People have cut down such a large number of trees that
the land _____________________desert.
2.There are fewer trees left, so the wind always _______
the earth ________.
3.Air pollution has become a serious problem, so we must
______________ to reduce it.
4.we should try our best to _________ people ________
cutting down the trees.
5.In the future, human beings can protect the trees well.
_____________, animals will live a happy life in the forest. has changed intoblows awaydo somethingstopfromAs a result4 A. Listen to the passage and circle the phrases you hear. become weaker
destroy the environment
disappear rapidly
on the earth
enough bamboo to eat4 B. Listen again and fill in the blanks.1. Now some kinds of animals are becoming
______ ______ _______.
2. Some animals are_____ ______ ____dying out
completely.
3. In the past, pandas lived a quiet life and had
________ ______food.
4. Humans have _____ _____ __________ the importance of protecting animals.
5. We should ______ ______ ____to protect them.do our bestin danger ofplenty ofcome to understandfewer and fewerWe learn: 1.Some words: sand, although 2.Some phrases: change into, human being 3.Some sentences: (1)As a result, a lot of rich land has changed into desert. (2)Trees can stop the wind from blowing the earth away. We can: 1. Use the indefinite pronoun and adverb. 2.Talk about the sandstorm and its harm. SummaryRead 1a.
Memorize the useful expressions and key sentences which we learn today.
Finish Section A in your workbook.
Preview Section B.Homework谢谢21世纪教育网（www.21cnjy.com) 中小学教育资源网站 有大把高质量资料？一线教师？一线教研员？
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