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1、上上课用的必修三用的必修三unit4-atronomy-using-languageWhat is the earths natural satellite?The moon.（天然卫星）（天然卫星）spacewalkLook at the pictures!1.How many times would the gravity change during their journey?A.Twice B.Three times C.Four times D.Once2.Why was the spaceship not falling back to the earth?A.Because it
2、 was too far from the earth to feel its pull.B.Because it was too big C.Because it was far from the moon.D.Not mentioned in the text.Read the text again and choose the best answer.(2mins)3.Which one is NOT true according to the passage?A.The moons gravity is not as strong as the earthsB.We enjoyed o
3、urselves on the moon.C.Walking on the moon was not very easyD.Leaving the moons gravity was more painful than leaving the earths4.Which of the following can replace the phrase“now that”?A.“since”B.“when”C.“while”D.“where”5.Returning to the earth was very_.A.interesting B.exciting C.Frightening D.ama
4、zingTask 2.Skimming1.Who do I have a chance to travel to the moon with?2.How did we travel to the moon?3.What is the writing form?4.Whats the writing order in this text?5.How many times would the force of gravity change on our journey?Li Yan Pin,an astronomerBy spaceshipThree times,the first timeA t
5、ravel journal Time order1.The force of gravity would change four times on their journey.()2.When they were on the moon,they would not feel the gravity because there was no gravity on the moon.()3.Since the gravity has changed,their walk didnt need a lot of practice.()4.“A visit to the moon”was not a
6、 real story but science fiction.()5.Their returning to the earth was frightening.()FFFTTthree wouldas if did(Para3,L8)(Para2,L9)(Para2,Line1)(Para4,L2)Detailed reading:课文短语与句子考点梳理课文短语与句子考点梳理Translate the words or phrases below1.the force of gravity _2.spaceship _3.rocket _4.pull _5.float _6.spaceshi
7、p cabin _7.weightlessly _8.exhausting _9.escape the pull of the earths gravity_10.lessen the weight_11.in space _重力重力n.宇宙飞船宇宙飞船n.火箭火箭拉力；牵引力拉力；牵引力v.漂浮漂浮太空舱太空舱失重地失重地adj.筋疲力尽的筋疲力尽的逃离地球的引力逃离地球的引力减少重量减少重量 在宇宙空间在宇宙空间 exhausted1.有机会去做某事有机会去做某事2.做一次太空旅行做一次太空旅行3.向某人解释某事向某人解释某事4.离开，出发离开，出发5.接近接近.6.高兴，振奋高兴，振奋7
8、.既然既然8.掌握，了解掌握，了解9.(不好之事不好之事)突发；爆突发；爆发发1.have a chance to do sth.2.make a trip into space3.explain to sb.sth.4.be off5.get closer to6.cheer up7.now that8.get the hang of 9.break out (break-broke-broken)=set off(since)Find out the useful phrases(1 min)1.我的朋友李彦平是一位天文学家。上个月我有幸得到一我的朋友李彦平是一位天文学家。上个月我有幸得到
9、一个机会同他个机会同他 一起去太空旅行。一起去太空旅行。1 Last month I was lucky enough to have a chance _(make)a trip_ space with my friend Li Yanping,_astronomer.2.我们乘宇宙飞船参观了月球。我们乘宇宙飞船参观了月球。2 We visited the moon _ our spaceship!3.在启程以前，李彦平向我解释说，在我们的航行中会有在启程以前，李彦平向我解释说，在我们的航行中会有三次引力的改变，而第一次的改变将是最强的。三次引力的改变，而第一次的改变将是最强的。3 Befo
10、re3 Before we left,Li Yanping explained_ me that the force of gravity _change three times on our journey and _ the first change would be the most powerful.完成语法考点并把句子翻译成中文完成语法考点并把句子翻译成中文 intoanto makein tothatwould4.这种引力太强了，以至于我们彼此间都不能说这种引力太强了，以至于我们彼此间都不能说话了。话了。4 _was so hard that we could not say_ t
11、o each other.5.随后这个力量慢慢减小，我才能够同他讲话。随后这个力量慢慢减小，我才能够同他讲话。5 _(gradual)the weight _(less)as we moved far away from the earth.And I floated_ (weight)around in our spaceship cabin.6.李彦平解释说：李彦平解释说：“现在我们离地球太远了，感觉不到地现在我们离地球太远了，感觉不到地球的拉力，所以我们感觉好像没有地球引力了球的拉力，所以我们感觉好像没有地球引力了。6 We are tootoo far from the earth n
12、ow _(feel)its its pull,he explained,so we feel as if there is no gravity at all.lessenedItanythingweightlesslyGraduallyto feel7.当我们更接近月球时，就会感到月球的引力在当我们更接近月球时，就会感到月球的引力在拉我们。但是，月球的引力不像地球的引力那拉我们。但是，月球的引力不像地球的引力那么大。么大。”7 When_(get)closer to the moon,we felt _(pull)by gravity,_it was not as strong as the
13、 earths.8.我立刻感到很高兴，由于失重我在太空舱里飘我立刻感到很高兴，由于失重我在太空舱里飘来飘去，我望着（身后的）地球越来越小，而来飘去，我望着（身后的）地球越来越小，而（前方的）月球越来越大。（前方的）月球越来越大。8 I cheered up immediately and floated weightlessly around in our spaceship cabin _(watch)the earth become _(small)and the moon larger.gettingpulledbut watchingsmaller9.如果我在月球上呆的时间足够长的话，
14、我甚如果我在月球上呆的时间足够长的话，我甚至可能长得更高，我的体重肯定也会变得更轻！至可能长得更高，我的体重肯定也会变得更轻！”I might even grow _(tall)if I stay here long enough.I shall certainly weigh less!10.而当我试着向前迈步的时候，我发觉我被送而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟然是在地球上的两倍，出去很远，步子的跨度竟然是在地球上的两倍，因而我摔倒了。因而我摔倒了。But _I tried to step forward,I found I was carried twice a
15、s far as on the earth and fell over.tallerwhen11.“天哪，天哪，”我大声说，我大声说，“重力改变了，看来走路重力改变了，看来走路也的确需要练一练了。也的确需要练一练了。”Oh dear,I cried,walking _need a bit of practice now that gravity has changed.12.过了一会儿，我才掌握了走路的诀窍，这才开始感过了一会儿，我才掌握了走路的诀窍，这才开始感到自如了到自如了。After_ while I got the hang of it and we began to enjoy_.1
16、3.摆脱月球引力不像摆脱地球引力那样痛苦。但是返摆脱月球引力不像摆脱地球引力那样痛苦。但是返回到地球的经历却是非常吓人的。回到地球的经历却是非常吓人的。Leaving the moons gravity was not_ painful as leaving the earths.But returning to the earth was very_(frighten).doesdoes a ourselves asfrightening.14.我说道：我说道：“真是精疲力竭了，但也很激真是精疲力竭了，但也很激动人心。关于引力，我现在就懂得更多了。动人心。关于引力，我现在就懂得更多了。Tha
17、t was very exhausting _very exciting too,I said.Now I know much more _gravity!butbutabout 背诵背诵 1.Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping,an astronomer.上个月我有幸得到一个机会同我的朋友，一上个月我有幸得到一个机会同我的朋友，一位宇航员李彦平一道去太空旅行。位宇航员李彦平一道去太空旅行。Language points have a
18、 chance to do 有机会做某事有机会做某事 I hope I can have a chance to travel to make friends with you give sb a chance 给某人机会给某人机会 Could you give me one more chance?by chance=by accident I discovered it by chance.2.When we get closer to the moon,we shall feel its gravity pulling us,but it will not be as strong a
19、pull as the earths.get close to 靠近，接近，指动态变化靠近，接近，指动态变化 be close to 距距.近，指状态近，指状态 The school is close to the post office.家长应该阻止孩子接近火。家长应该阻止孩子接近火。_Parents should prevent children from getting close to fire.as+adj.+(n.)+as This film is _that one.这部电影和那部电影一样有趣。这部电影和那部电影一样有趣。We should plant trees _.我们应该尽
20、可能多种树。我们应该尽可能多种树。This dictionary is _you think.这本字典不如你想象的那样有用。这本字典不如你想象的那样有用。John is _as mike.约翰和迈克是一样聪明的学生。约翰和迈克是一样聪明的学生。as interesting asas many as possiblenot as useful asas clever a student 当看到当看到Beckham，球迷们，球迷们(the fans)欢呼起来欢呼起来。_ _ _ _ when they saw Beckham.他带她去听音乐会他带她去听音乐会(concert)来来使她高兴使她高兴。
21、He took her to the concert to _ _ _.Thefanscheeredupcheer her up Cheers!Our football team will compete against the Japanese team this evening.Lets go and cheer them up！为某人加油为某人加油 3.I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and t
22、he moon larger.干杯干杯!4.But when I tried to step forward,I found I was carried twice as far as on the earth and fell over.倍数表达法：倍数表达法：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 as that这条河是那条河的五倍宽。这条河是那条河的五倍宽。1._2._3._这块
23、石头的重量是那块石头的三倍。这块石头的重量是那块石头的三倍。1._2._3._ 这颗树是那颗树的四倍高。这颗树是那颗树的四倍高。1._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.T
24、his stone is three times the weight of that one.This tree is four 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.1).A+be+倍数倍数n+as+形容词原级形容词原级+as+B4.But when I tried to step forward,I found I was carried twice as far as on the ear
25、th and fell over.3).A+be+倍数倍数n+形容词比较级形容词比较级+than+B A比比B大大(长、高、宽等长、高、宽等)n倍倍2).A+be+倍数倍数n+the+名词名词(size,length,width,height,depth,weight,amount)+of+B A是是B的的n倍倍倍数表达法：倍数表达法：这根绳子这根绳子(rope)是那根绳子的六倍长。是那根绳子的六倍长。A=nBA=(n+1)B7.We watched,amazed as fire broke out on the outside of the spaceship as the earths g
26、ravity increased.amazed 是过去分词，此处做状语用是过去分词，此处做状语用 他进来的时候没有人注意到他进来的时候没有人注意到.He came in _.break out (战争战争,争吵争吵,疾病等疾病等)爆发爆发unnoticed它与它与happen,take place,come out等词的用法一样，等词的用法一样，是不及物动词，不能带宾语，不能用于被动语态。是不及物动词，不能带宾语，不能用于被动语态。My car _(抛锚抛锚)so I had to walk there.The famous band _(解散解散)in the end.Thieves _(闯
27、入闯入)his house last night.The war _(爆发爆发)ten years ago.The enemys defenses were strong but our soldiers _(突破；突围突破；突围).broke downbroke upbroke intobroke outbroke through与与break相关的短语相关的短语:II.用适当的介词或副词填空。用适当的介词或副词填空。1.Come on.Cheer _!Youre not the only one who failed in the test.2.Since there are many p
28、roblems that cant be solved,the war is likely to break _.3.Last Saturday,I went on a visit _ the Great Wall with some of my friends.4.Is there anything else you would like me to explain _ you?upouttoto5.Water vapor is lighter,otherwise it would not rise _ the air.6.His grandfather lives in a lonely
29、village which is far _ his house.7.The leaves fall _ the trees and blow about in the autumn wind.8.As a matter of fact,I didnt know him _ all.intofromfrom/offat9.Make sure that your children can not get close _ pools,lakes and rivers by themselves.10.He wants to give away all his modern possessions and return _ nature.totoHomeworkWrite a passage explaining three problems you might meet on the moon and how you will solve it.谢谢大家！