仁爱版九年级英语上册Unit2 Topic2课件（共62张PPT）

课件62张PPT。Unit 2 Saving the EarthTopic2 All these problems are very serious.Section Apollutionmany trees cut downforests gonewash the earth away冲走change into desert转换成，变成沙漠e.g. A lot of rich land has changed into desert because people have cut down too many trees. sandstormscome into being n. 沙尘暴1 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。3 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。4 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。5 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 although 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the indefinite pronoun and adverb 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Do you know?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。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 result3 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 trees4 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 fewerLily, 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 Exercises( )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.EveryoneBBCUnit 2 Saving the Earth Topic 2 All these problems are very serious. Section B Who can fill it quicklysomethingsomebodysomeonesomewhereanythinganybodyanyoneanywhereeverythingeverybodyeveryoneeverywherenothingnobodynowherepron.没有人
n.小人物，无足轻重的人pron.人人，每个人Air pollution What can we do to protect our environment?1 as a result 结果。
e.g. As a result, we were all late for class.
结果，我们都迟到了。as a result of... 由于……。e.g. As a result of ill health, he couldn’t go on working any longer.
由于健康状况不佳，他不能继续工作了。
2 something useful 形容词修饰不定代词时， 要放在所修饰词的后面， 作后置定语。somewhere warm 暖和的地方，nothing serious 没什么严重的。
There is something interesting in today’s newspaper.
今天的报纸上有一些有趣的事。3 None of us likes pollution. 没人喜欢污染。
None 没有一个， 毫无
none 指三者或三者以上的“没有， 都不”，既可指“人”也可指“物”，常与of连用，既可修饰可数名词，也可修饰不可数名词。
none和no one 的区别;
No one 1)不与of连用；2)谓语动词用单数；3)只能指人，但不具体指什么人；4)一般用来回答who,及含anyone, anybody引起的疑问句。
None 1)可与of连用；2)谓语动词用单或复数；3)具体指什么人或物；4)一般用来回答how many +n, how much +n及含any +n引起的疑问句。 4 here and there 处处，到处。与everywhere同义。
e.g. I’ve looked for my key here and there (everywhere), but I can’t find it.
我到处找我的钥匙，但就是找不到。
5 We should do everything we can to protect the environment.
我们应该做所有我们能做的事情来保护环境。
此句中we can作everything的定语，省略了引导词that及从句中的谓语do, 意为“一切能做的事情”。4.But the government is doing something useful to protect the environment. 政府正在做一些有益的事情来保护环境。 3.We shouldn’t leave rubbish here and there.我们不应该随处乱扔垃圾。 在多处n.垃圾，废弃物2. Everyone should care for wild animals and plant more trees .每一个人都应该爱护野生动物，种更多的树。 adj.野生的，野的Language Points不定代词+形容词Exercises Use everything, everyone, anywhere, something to fill in the blanks.But the government is doing _________ useful to protect the environment.
____________ should care for wild animals and plant more trees.
Don’t spit _____________ in public.
We should do _________ we can to protect the environment. somethingEveryoneanywhereeverythingDear Headmaster,
I’m writing to tell you _________important. Nobody likes to be untidy. However, some students throw waste paper and bottles ___________. We all need a quiet place to study, but some students often make too much noise at school. Worst of all, some of them are quite rude when talking to_______. __________________ knows their behavior is bad, but ______of us knows how to stop them.
I think we should make rules to change the situation. ________ who breaks the rules will be punished. Perhaps it will be hard for us to keep the rules in the beginning, but if___________________does his or her best to follow the rules, our school environment will improve.
Sincerely,
KangkangEveryone/Everybodynoneeveryone/everybodyAnyone2 Listen to the letter and help Kangkang to complete it . Then read it aloud as accurately as possible. otherseverywheresomething
You can choose the phrases to use:
1. It says that … 2. as a result
3. something useful 4. None of …
5. here and there 6. care for
7. Worst of all 8. make rules
9. change the situation 10. Perhaps
11. obey the rules 12. do one’s best Make a speech about protecting our environment.( )4.—Hi, Bob! I can’t find my story book. Have you seen it?
—Sorry, I haven’t. Why not ask Jim? Perhaps he’s seen it _____.
A.anywhere B.everywhere C.nowhere D.somewhere
( )5. —Which of the two subjects do you like, art or music?
—_____，they are really interesting.
A.Neither B.Both C.None D.All
( )6.We must plant more trees after we _____ every year.
A.take away them B.take them away C.cut down them D.cut them downDBDUnit 2 Saving the Earth Topic 2 All these problems are very serious. Section C(1)________ of us knows how to stop the bad behavior.
(2) I knocked on the door but ___________ answered.
(3) Some of these books are better than__________.
(4) She was driving the car with one hand and wiping the window with the _______.
(5) They are beautiful but I am looking for ___________ useful.
(6) Is there ___________ you can do to help her?
(7) There’re 5 000 people living here and almost _________has his/her own car.
(8) He’s cleverer than ____________ I know.
(9) I’ve looked __________ but I can’t find it.Fill in the blanks using something, anything, others, nobody, everyone, anybody, everywhere, none, other.ReviewNonenobodyothersothersomethinganythingeveryoneanybodyeverywhereIn our daily life, we should face more environmental problems.
Can you say something about them? cities, pollute,
health problems factories, the land and the air, deadIn our daily life, we should face more environmental problems. Can you say something about them? cut down, millions of,
take away the earth,
become desert拿走In our daily life, we should face more environmental problems.
Can you say something about them? oxygen a special kind of oxygen
called “ozone” (O3)氧气 a very big hole in the ozone layer,
too much harmful radiation from the sun臭氧层放射，放射物 n.洞，坑v.出现，形成
n.种类，形式In our daily life, we should face more environmental problems.
Can you say something about them?CO2 carbon dioxide increase a lot, form a “blanket”, the heat from the sun can’t escape二氧化碳毛毯，毯子渗出；逃跑；逃脱 cause the level of the sea to rise
called “the greenhouse effect”
or “global warming”
v.上升；起床；升起温室效应fewer treesfactory pollutiontraffic pollutionthe ozone layermore carbon dioxideCan you match them?1a Read and understand.
Look at the following pictures and predict the main idea of the passage. 1 be good for 对……有益；be good at 擅长……。
e.g. Doing morning exercises is good for our health.
做早操对我们的健康有益。
Kangkang is good at swimming.
康康擅长游泳。
2 while conj. 而，然而，相当于but，表示对比。
e.g. He is a worker, while I am a teacher.
他是工人而我是教师。3 rise v. 升起，上涨，上升。
e.g. The sun rises in the east.
太阳从东方升起。
raise v. 使升高，举起。
e.g. Heavy rains raised the flood stage.
暴雨使洪水水位上涨。( )7.The cleaners must keep the street _____.
A.from getting dirty B.to dirty
C.to get dirty D.getting dirty
( )8.—Is _____ ready for the trip?
—No, we haven’t got a camera.
A.nothing B.everything C.something D.anything
( )9.None of us _____ running, but we all like swimming.
A.likes B.like C.liking D.would like to
( )10. _____Liang Li is very busy,she always helps others.
A.But B.And C.Although D.BecauseABACUnit 2 Saving the Earth Topic 2 All these problems are very serious. Section D GrammarNoneanywhereEveryoneeverythingIndefinite pronoun and adverb 不定代词和副词
一、构成。
不定代词、副词是由some, any, no, every与thing, one,
body, where 等构成。
E.g. something, someone, nowhere, anybody等。
二、用法。
1．通常情况下,由some, every加后缀构成的不定代词、
副词常用于肯定句；由any加后缀构成的不定代词、副
词常用于疑问句、否定句中。
E.g. You will find your bag somewhere.
Can you hear anything?
2. 注意：当说话人希望得到肯定答复,或是表示建议、请求等意图时,something, somebody, someone也可以用于疑问句中。当要表达“任何人；任何事物”时,anything, anybody, anyone也可以用于肯定句中。
E.g. Would you like something to drink?
Anybody can do it except Tom.1. —Which would you like to drink, tea or coffee?
—________, thanks. I’m not thirsty.
A. Either B. Neither C. Little D. Few?
2. The students are doing some cleaning. Some
are sweeping the floor, ________ are cleaning the
desks and chairs.
A. other B. the other C. another D. others?
3. My parents are ________ doctors.
A. both B. all C. either D. neither
4. There is ________ with my computer. Can you help me?
A. wrong anything B. anything wrong
C. wrong something D. something wrong
5. The wind was blowing strongly. ________ people
walked in the street.
A. Little B. A little C. Few D. A few
6. Hurry up. There is ________ time left.
A. a little B. little C. a few D. few
ExercisesFunctions______ a result（结果）, a lot of rich land has changed _________ （变为）desert.
Trees can stop the wind from ______ the earth _____(吹走）.
We shouldn’t leave rubbish ___________(到处).
All these problems are very serious,_____(所以) we must do something now. intoblowingawayhere and there soAswater pollution Imagine you are water.Please tell us your functions, problems and wishes.I’m water. I used to be …
Factories usually pour …
I wish human beings … 名词
avoid 代词
动名词 v.防止，避免v.发现，找到Language points e.g. He avoided answering my questions. 不定式不可以做宾语。1. How can we avoid a serious water shortage? 我们如何避免水资源短缺呢？2….we should discover ways to reuse water.我们需要找到再利用水的方法。thirsty adj.缺水的;（口）渴的nearly adv.几乎，将近nearly 与almost 区别 ：
almost 多表示时间、程度、距离、进度， 且almost 可以修饰more than, too, nothing, nobody, nowhere, no one, none, never 等词，nearly 则不行。nearly只与not连用。
e.g. I have almost never seen him.
I nearly didn’t hear what the teacher said in class. Language points 3.Although the world is hungry, it is even thirstier
虽然世界是饥饿的，但是他更渴。4.While nearly ? of the earth is covered with water , we are still short of drinking water. 尽管地球差不多四分之三都被水覆盖，我们仍然缺少饮用水。 Exercises If we want to use the sea water, we must ______ ___(拿走） the salt from the sea water.
How can we _________(避免) a serious water shortage?
We should __________(找到) ways to reuse water.
People’s need for water is increasing ____________(一天天).
Although the world is hungry, it is even ______(更渴的)
While ___________(几乎，差不多)? of the earth is covered with water, we are still short of drinking water. take awayavoiddiscoverday by daythirstier nearlyThank you !