
Book3Unit4AVisittotheMoon.ppt
31页Book3Unit4AVisittotheMBook3Unit4AVisittotheMoonoonWhat is the earth’s natural satellite?The moon.(天然卫星)(天然卫星)“One small step for a man, one giant leap for mankind”. Neil Armstrong (1930 – 2012), USA. He landed on the moon in July 1969.“这是个人迈出的这是个人迈出的一小步,但却是人一小步,但却是人类迈出的一大步类迈出的一大步 Who was the first man landing on the moon?China’s first astronaut--------Yang LiweiOct.16th 2003the first female astronaut in China---liu yangspaceshipspacewalkLook at the pictures! The gravity on the earth is 6 times as strong as it is on the moon. This means that someone who weighs 150 lbs(磅磅) on Earth would weigh only 25 lbs on the moon! You might think that this would make walking much easier, but it is actually quite difficult Later in the Apollo(阿波阿波罗罗) (Moon landing) mission, astronauts discovered that it was easier to hop(跳跳) than it was to walk .floatzero gravity/ weightlessNow, let’s set out for the moon!Skim the 4 paragraphs quickly, and summarize the main idea of each paragraph:Para 1:Para 2:Para 3:Para 4:The things I did on the moon.We turned back to the earth. Last month, we visited the moon. How the force of gravity changed when we traveled from the earth to the moon.1.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 didn’t need a lot of practice. ( )4. Their returning to the earth was frightening. ( )FFFTthree would did( Para3, L8 ) ( Para2, L9 ) ( Para2, Line1 ) ( Para4, L2 )Detailed reading: Careful readingLeaving the earth for the moonQ: How many times would the force of gravity change on our journey? Which change would be the most powerful?Three times , the first timeOn the moonThe change of gravityIn spaceVery strongLessenedVery light Leave the earth para1,line1. 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 chance to do 有机会做某事有机会做某事 我希望我有机会环游世界我希望我有机会环游世界 I hope I can have a chance to travel around the world. 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. Para2,,line8. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth’s. 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 … as …”其基本意思为其基本意思为“与与……一样一样”,其中的第,其中的第一个一个as副词,其后通常副词,其后通常接形容词或副词接形容词或副词(用原级用原级),第二,第二个个as可用作介词可用作介词(后接后接名词名词或或代词代词)或连词或连词(后接后接从句从句)as +adj./adv. +as as +adj (+a +可数名词单数)可数名词单数)+as as +adj+(不可数名词或可数名词复数)不可数名词或可数名词复数)+as 他的卧室和她姐姐的一样干净他的卧室和她姐姐的一样干净His bedroom is as clean as his sister’s.你和我犯的错误一样多你和我犯的错误一样多 You’ve made as many mistakes as I have. 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This film is ________________that one.我们应该尽可能多种树。
我们应该尽可能多种树We should plant trees ________________.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John is ______________________as mike. 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 This dictionary is _______________you think.as interesting asas many as possiblenot as useful asas clever a studentas … as …句式的否定句式的否定: “ not as/so … as…”他学习不如他弟弟努力他学习不如他弟弟努力He doesn’t study as ((so)) hard as his brother 1.as soon as “一一......就就......”,引导时间状语从句引导时间状语从句我一完成我的作业我一完成我的作业,就给你打就给你打 I‘ll call you as soon as I finish my homework. 2. as long as “长达长达......之久;只要之久;只要......”。
我们花了长达三年的时间才完成这项计划我们花了长达三年的时间才完成这项计划 It took us _______________________to carry out the plan.as long as three years习惯用法习惯用法3. as much as “高达高达......;与;与......一样多一样多”用来表达极其多的语气达极其多的语气有些学生重达有些学生重达80公斤Some of the students _________________80 kilograms.4.as far as “远达远达...... ”昨天傍晚,他一直散步到火车站昨天傍晚,他一直散步到火车站 He______________________________________yesterday evening. 5.as well as“和和...... 一样好一样好”她烧菜烧得跟她母亲一样好她烧菜烧得跟她母亲一样好 She cooks as well as her mother does.weigh as much aswalked as far as the railway station①① 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.②② 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• He took her to the concert to _____ ____ ____.Thefanscheeredupcheer her up④④– Cheers! ③③ Our football team will compete against the Japanese team this evening. Let’s go and cheer them up!! 为某人加油为某人加油Para2,line10. I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger. –干杯干杯! Para3,line6. 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:1. A + be + 倍数倍数n+ as +形容词原级形容词原级 + as +B2. 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3. A + be + 倍数倍数n +形容词比较级形容词比较级 + than + BA比比B大大(长、高、宽等长、高、宽等)n倍倍A=nBA=(n+1)B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.This 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. 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 Para3, line7. ... “walking does need a bit of practice now that gravity has changed.now that同同since相似,语气较弱,强调人相似,语气较弱,强调人们已知的事实。
后跟句子们已知的事实后跟句子 既然你已经得到这个机会,就应该充分利用它既然你已经得到这个机会,就应该充分利用它Now that you've got the chance, you should make full use of it. Para4,line2.We watched, amazed as fire broke out on the outside of the spaceship as the earth’s gravity increased.break out (战争战争,争吵争吵,疾病等疾病等)爆发爆发它与它与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 1) 战争爆发战争爆发The American Civil War broke out in 1861. 2) 发生争吵发生争吵A quarrel broke out between them. 3) (火灾火灾)发生发生 A fire broke out in his house last night. Homework •1. 金牌学案金牌学案P49•2. 预习:主语从句预习:主语从句•3. 背诵佳句诵读背诵佳句诵读结束结束 。












