人教版高二英語必修三Unit4-Using-language-points

1、Unit4Language points speakingLearning aims1.To learn some important language points.2.To master the usages and be able to use them.3.To learn how to speak of the space.1. Then we were off. 隨后我們就啟程了。隨后我們就啟程了。 be off = set off 出發(fā)出發(fā); 動身動身 I am off today. 我今天不用上班。我今天不用上班。 We are off today. 今天我們不上班今天我們不上

2、班/今天我們不開張。今天我們不開張。 shut off 關(guān)閉關(guān)閉get off 下車下車take off 脫下脫下turn off 關(guān)閉關(guān)閉pay off 付清付清; 還清還清與與off相關(guān)的短語相關(guān)的短語: set.off 送行送行 kick off 踢球踢球 jump off 跳下跳下 give off 散發(fā)散發(fā) show off 炫耀炫耀 get close to 靠近靠近, 接近接近, 指動態(tài)變化指動態(tài)變化 be close to 距距近近, 指狀態(tài)指狀態(tài) The school is close to the post office.2. When we get closer to t

3、he moon, we shall feel its gravity pulling us but it will not be as strong a pull as the earths. 當我們更接近月球時當我們更接近月球時, 就會感到月球的引力就會感到月球的引力 在拉我們。但是在拉我們。但是, 月球的引力不像地球的月球的引力不像地球的 引力那么大。引力那么大。與與get相關(guān)的短語相關(guān)的短語:get along with 相處融洽相處融洽, 進展等進展等get down to 開始認真對待開始認真對待, 開始認真考慮開始認真考慮get on 上車上車get through 到達到達; 通

4、過通過; 辦完辦完, 花光花光(錢、時間等錢、時間等)。get to 到達到達get down to; get on; get through; get to; get over; get up 1. Dont talk too much. Lets _ working.2. Hurry up, or well be late to _ the bus.3. Its easy to _ the difficulty.4. I have _ a lot of papers.5. She managed to _ the village.get down toget onget overgot t

5、hroughget to“as as ”句式：句式： 和和.一樣一樣 as +adj./adv. +as as +adj (+a +可數(shù)名詞單數(shù)）可數(shù)名詞單數(shù)）+as as +adj+(不可數(shù)名詞或可數(shù)名詞復(fù)數(shù)）不可數(shù)名詞或可數(shù)名詞復(fù)數(shù)）+as His bedroom is as clean as his sisters. Youve made as many mistakes as I have.as as 句式的句式的否定否定: “ not as/so as”e.g. He can not speak English so fast as a native speaker. as+ adj

6、.+(n.)+ as This film is _that one.這部電影和那部電影一樣有趣。這部電影和那部電影一樣有趣。We should plant trees _.我們應(yīng)該盡可能多種樹。我們應(yīng)該盡可能多種樹。This dictionary is _you think.這本字典不如你想象的那樣有用。這本字典不如你想象的那樣有用。 John is _as Mike. 約翰和邁克是一樣聰明的學(xué)生。約翰和邁克是一樣聰明的學(xué)生。as interesting asas many as possiblenot as useful asas clever a student1) . A + be +

7、倍數(shù)倍數(shù)n+ as +形容詞原級形容詞原級 + as +B3. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. 3). A + be + 倍數(shù)倍數(shù)n +形容詞比較級形容詞比較級 + than + B A比比B大大(長、高、寬等長、高、寬等)n倍倍2). A + be + 倍數(shù)倍數(shù)n + the +名詞名詞 (size, length, width, height, depth, weight, amount) + of + B A是是B的的n倍

8、倍倍數(shù)表達法：倍數(shù)表達法：這根繩子這根繩子(rope)是那根繩子的六倍長。是那根繩子的六倍長。A=nBA=(n+1)B 考例：考例：Our new library is _ the old one. A. four times as large as B. four times the size C. four times larger D. four times larger than that這條河是那條河的五倍寬。這條河是那條河的五倍寬。1._2._3._這塊石頭的重量是那塊石頭的三倍。這塊石頭的重量是那塊石頭的三倍。1._2._3._ 這顆樹是那顆樹的四倍高。這顆樹是那顆樹的四倍高。1

9、._2._3._This river is five times as wide as that one.This river is four times wider than that one.This river is five times the width of that one. This stone is three times as heavy as that one.This stone is twice heavier than that one.This stone is three times the weight of that one.This tree is fou

10、r times as high as that one.This tree is three times higher than that one.This tree is four times the height of that one.So, life is different on a spaceship. There is little gravity so that things float around. If you planned to travel to the moon, what matters would you meet with?Speaking and writ

11、ingProblemsHow to cool youHow to breatheHow to eat and drinkHow to protect your skinHow to stop flying off the moons surfaceSpacesuitsSpace FoodSpace Buggy登月車登月車Space CameraMake a list of your ideas and take part in a class discussion to find the best ones. Use these words and expressions to help yo

12、u.Please pay attention to . Please check that . You need . Dont forget to . Make sure that . Watch out for .Youd better . You must/mustnt . Please look at .Sample: S1: Lets think about what we would need to protect our skin if we visited the Moon.S2: Id take some skin cream. That works very well whe

13、n we go to the sea.S3: Yes, but its going to be much too hot to put cream on your skin on the Moon.S4: Whats more you get direct heat from the sun. There are no clouds on the Moon to protect you.S3: Oh dear, and I also have to carry oxygen around with me everywhere because theres no oxygen on the Mo

14、on.S2: Why dont we carry the oxygen on our backs in a tank?S1: Good idea, but wont that hurt our skin?S4: I think it will. Why dont we wear a spacesuit which has the possibility of protecting your skin and helping you carry the oxygen very easily?S1: A very good idea. We also need some sunglasses as

15、 the sun will be as bad for our eyes as for our skin.S3: Thats right. The helmet of the suit can have sunglasses you can use.S2: How will the suit protect our skin?S4: Its so hot there so I suggest we design suit that can supply cold water so the wearer feels cool and hot water to warm us if we feel

16、 cold.S2: Great! So I wont need sun cream after all. Thats good!Brainstorming for writing What will we meet on the moon?when wherewhatwho problemssolve (how)Writing an outline (3m)Outline (main idea)The first paragraph(introduction)Body (your own ideas on the item)Conclusion (summing up)headingsummi

17、ng upSample articlethe problempossible solutionsIf I visited the moon, here is a problem I might have: how to stop my food floating away.I would have to take all my food with me if I went to the moon. In the spaceship there is no gravity so the food would float around if it was solid.So I would make sure that it is specially made as liquid space food. It could be put in a tube and then I would be able to eat it more easily. Perhaps I would use a straw to eat with. It would solve the problem.how it would solve the