人教高中英語(yǔ)必修3Unit4grammar(共25張)課件

1、Unit4Astronomy: the science of the starsWhy do people travel abroad?Think of the purposes of travelling abroadTravel abroadBrainstormingsightseeing work Cloze testpart 1The earth was just a cloud of dust after the “Big Bang”The earth 1._ (explode) loudly with fire and rock. They were 2._ time to pro

2、duce many things，which were to make the earths atmosphere. 3._ the earth cooled down，water began to appear on its surface. It allowed the earth to dissolve 4._ (harm) gases. Then life began to develop. The first small plants multiplied and filled the oceans and seas 5._ oxygen. This encouraged the 6

3、._(develop) of early shellfish and fish. Land animals appeared after green plants appeared. Small clever animals 7._ (spread) all over the earth.They are putting too 8._carbon dioxide into the atmosphere，which prevent heat from escaping from the earth into space. 9._ life will continue on the earth

4、for millions of years to come will depend on 10._ this problem can be solved.inAsharmfulexplodedwithdevelopmentspreadmuchWhetherwhetherin time 及時(shí)；終于fill A with B 用B充滿(mǎn)A Important words & expressionspart 2n.&vt.拉；拖；牽引力1. pull_ The handshake seems to be longer than elsewhere. So do not pull away from t

5、he handshake. Everyone was very concerned whether he would pull through or not.So long as we pull together theres no mountain top we cant conquer.掙脫；脫離；脫身康復(fù)；完成；使渡過(guò)難關(guān)齊心協(xié)力歸納總結(jié)：和pull有關(guān)的短語(yǔ)pullpull in _pull out _pull up_(車(chē)輛，船只）進(jìn)站，靠岸，靠邊?？侩x站；拉出；取出pull together_齊心協(xié)力pull away from _掙脫；脫離；脫身pull through _康復(fù)；完

6、成；使渡過(guò)難關(guān)pull down _Can you guess the meaning?pull（使車(chē)輛等）停住拆毀，摧毀Describe the following 3 pictures with “pull” phrases:pull away frompull outpull up2 2 harmful_Freezing winter is harmful to orange trees.These days, breaking traffic rules and littering are not uncommon, causing serious harm to life and e

7、nvironment.對(duì).有害be harmful to cause/do harm toadj.有害的Ptheres no harm in doing.不妨做.may/might as well doEx.Exercises: Fill in the blanks.1. There is _. (不妨說(shuō)出你的想法)2. As we all know, a bad eating habit is _ to ones health.no harm in saying what you think harmful3 puzzle3. puzzle puzzlen.迷，難題vt&vi.（使）迷惑（使

8、）為難puzzlen.迷，難題vt.&vi.(使)迷惑(使)為難 puzzlen.迷，難題vt&vi.（使）迷惑（使）為難puzzlen.迷，難題vt.&vi.(使)迷惑(使)為難puzzledadj.感到困惑的puzzlingadj.令人困惑的 puzzlen.迷，難題vt&vi.（使）迷惑（使）為難puzzlen.迷，難題vt.&vi.(使)迷惑(使)為難puzzledadj.感到困惑的puzzlingadj.令人困惑的puzzlementn.迷惑；費(fèi)解Ex.Exercises: Fill in the blanks.1. 用puzzle的適當(dāng)形式填空The _ look on her f

9、ace suggested she was _ about the _ math problem.Much to the _ of his mother, he left home without saying a word.puzzled4puzzledpuzzlingpuzzlementpuzzle about/over 苦苦思索 to ones puzzlement 令.費(fèi)解的是puzzle sb. 使某人疑惑 4 exist_Dinosaurs existed on the earth for more than 140 billion years.There exists a goo

10、d way to solve the exsisting problem.Scientists have many theories about how the universe first came into existence.There exist. 有.came into existence 產(chǎn)生；成立，開(kāi)始存在vi.存在；生存P無(wú)被動(dòng)無(wú)進(jìn)行5 5 in time_Andy know he could not reach the house in time.Youll succeed in time because you are always working hard.歸納拓展: t

11、ime的相關(guān)短語(yǔ)：at no time 決不at one time 曾經(jīng)，一度on time 準(zhǔn)時(shí)at a time 依次，每次in no time 立刻，馬上及時(shí)，最終Ex.at times 有時(shí)Exercises: Fill in the blanks.用time的相關(guān)短語(yǔ)完成小片段曾經(jīng)一度我對(duì)滑冰十分癡迷。然而我卻時(shí)常摔倒在冰面上，但是我知道如果缺乏訓(xùn)練我絕對(duì)不會(huì)熟練。_ I grew crazy about skating. However, I fell onto the ground _, but I knew that I would _ be skilled if I lack

12、 of practice.At one timeat timesat no time一、 用適當(dāng)?shù)慕樵~填空：1. As the old saying goes, its easier to pull _ than to build up.2. Last night, Mrs. Green had a heart attack. But luckily, the doctor came _ time to save her life.二、完成句子：1.As we all know, a bad eating habit _ (對(duì).有害) ones health.2. The _（疑惑的表情） on her face suggested she didnt understand what I said.downoutis harmful to puzzled look三、改錯(cuò)：1. What