九年级上册英语第四单元Topic2学案全仁爱版.docx

1、九年级上册英语第四单元Topic2学案全仁爱版Unit4 Topic2 SectionA 精品学案预习热身。翻译：A:life in space_ travel by spaceship_in order to (do)_B:in the future_ on the earth_What fun!_ will be able to_C:A wonderful movie will be shown tonight._We will be able to do anything that can be done on the earth._I dont think aliens can be

2、found in space._I wont believe there are aliens until I see them with my own eyes._二：重难点释疑。1.We will be able to do anything that can be done on earth. 思考：that can be done on earth是_从句，修饰先行词_点拨：can be done 能够/可以被做(带有情态动词的被动语态)。练习：.这些树明天必须被栽种。These trees _ _ _ tomorrow.2.They are reading information o

3、n the Internet in order to learn about human culture. 他们正在互联网上阅读资料，以便了解人类的文化。点拨：in order to (do) 为了 (后接目的状语)，否定形式 in order not to (do) 链接：so that 为了 (后接目的状语从句)。练习：1.为了能赶上早班车今天早上他起床很早。He _ _ early _ _ he _ _ the early bus this morning.2.为了提高口语他去年去了英国。He went to England last year _ _ _ _her oral Engli

4、sh.3.I dont think aliens can be found in space. 我认为在太空中找不到外星人。点拨: 主语(第一人称)+think/suppose/believe/imagine/expect，后面宾语从句中的否定词not要前移到主句，即_ 注意：这种含有否定前移复合句的反意疑问句部分要与从句一致. 练习：a .I expect they can make progress in English.(变否定句) _ b.我相信他不会回来. I _ _he _ _ back.c.我认为明天不会下雨.I _ _ it _ _ tomorrow,.4.I wont bel

5、ieve there are aliens until I see them with my own eyes.除非亲眼所见，否则我也不相信有外星人存在。点拨: notuntil 直到才(until引导了时间状语从句)，从句中要遵循主将从现的原则。对比：until 和notuntil 分析：a. They kept waiting for her until she came back. b. They didnt leave until she came back. 总结：until前面主句的谓语动词是_; notuntil前面主句的谓语动词是_练习：1.昨天晚上直到完成作业我才睡觉。I _

6、 go to bed _ I _ my homework last night.2.明天我会一直等到你回来。I _ _ _ you _ you _ back tomorrow.Unit4 Topic2 SectionB 精品学案一 、预习热身。翻译：A:admire sb._ prefer A to B_be excited about._ on the stage_B:take part in the space flight_ discover something new_master some basic computer skills_ perform ballet_C:I prefe

7、r science to dance._Our dreams will be realized._二：重难点释疑。1.I really admire them. 我真羡慕他们。 点拨：admire sb. / sth. 钦佩，羡慕某人/某事。 拓展：admire sb. for doing sth. 钦佩某人做某事练习：a.我羡慕你的成功。_ b.我们钦佩宇航员们成功地完成了太空行走。 We _ the astronauts _ _ _ _ walking in space.2.I prefer science to dance. 同跳舞相比，我更喜欢科学。点拨：prefer 更喜欢= lik

8、ebetter 总结：a. prefer sth.to sth. 和比较起来更喜欢。 b. prefer doing sth. to doing sth. 和做某事比起来更喜欢做某事。 c. prefer to do sth 更喜欢做某事(一时性的)。 d. prefer doing sth. 更喜欢做某事(长久性的)。练习：a.和重庆比起来我更喜欢厦门。I _ Xiamen _ Chongqing. b.和游泳比起来我更喜欢滑冰。I prefer _ _ _. c.他更喜欢和我一起去打篮球。He _ _ _ basketball with me.d.他们更喜欢雨天在家喝茶。They _ _

9、_ at home _ _ _.3.Lets work hard to make our dream come true. 让我们努力学习来实现我们的梦想吧。点拨：make sb./sth. do sth. 使某人/某物做某事。 思考：to make our dreams come true在句中做_状语。拓展：make sb. adj. 使某人处于某种状态，make sb. + 名词 使某人成为。练习：a.不要让我等太久。Dont _ _ _ _ too long. b.那个消息使他们兴奋。The news _ _ _.c.我们选她当班长。We _ _ _ .d.为了让他妈妈满意，他做了所有

10、的家务活。He _ all the housework _ _ his mother _.Unit4 Topic2 SectionC 精品学案一、预习热身。翻译：A:be named after Mars_ at a distance of._53% as wide as._ two-fifths as strong as._be closest to each other_ search for more information_B:On the surface of Mars_ weight only 36 kilos_ the Roman god of war_ C:Its diamet

11、er is 53 as wide as that of the earth. _It has been two days since we landed on Mars._二、重难点释疑。1. Its diameter is 53 as wide as that of the earth. 它的直径是地球直径的53。点拨：as形容词/副词原级as 名词 像一样 。思考：句中that指代_, 如果前面的名词是复数，用_指代。练习：a.我们学校像花园一样美。Our school is _ _ _ a park.b. Tom和Mike跑得一样快。Tom _ _ _ _ Mike.c.城市的楼比农村的

12、高。The buildings in the city _ _ than _ in the country.2.Mars goes around the sun at a distance of about 228 million kilometers. 火星在相距大约两亿两千八百万千米的地方绕着太阳旋转。点拨: at a distance of 相隔 。拓展：at/from a distance 在远处 。3.The gravity on the surface of Mars is about two-fifths as strong as it is on earth. 火星表面的引力大

13、约是地球表面引力的五分之二。点拨：倍数词/分数/百分数as 形容词或副词原级as “是的几倍/几分之几/百分之几”。练习：a.这个盒子是那个盒子的四倍重。 This box is _ _ _ _ _ that box.b.这个房间是那个房间的三分之一大。This room is _ _ _ _ that room.4.So a person who weighs 90 kilos on earth weighs only 36 kilos on Mars. 因此，一个在地球上重90千克的人在火星上只有36千克的重量。点拨：a person who weighs 90 kilos on eart

14、h 一个重达90公斤的人 思考：句中第一个weighs是_句的_; 第二个weighs是_句的_5.It takes a spaceship about eight months to reach Mars from the earth when the two planets are closest to each other.在地球与火星最接近的时候，宇宙飞船需要用大约8个月的时间才能从地球到达火星。同义句：A spaceship _ _ _ _ _ Mars from the earth when 点拨：be closest to 离最近 。拓展：离近_;离远_。6.Scientists

15、 are still searching for more information about Mars. 科学家们仍然在搜索更多有关火星的信息。 点拨：search 搜寻，搜索，搜查(动词) 。拓展：search sb. / sth 搜某人的身/搜某物，search for sb. / sth. 搜寻某人/某物。 练习:消防员在建筑物中搜寻幸存者。Firefighters were _ the building _ survivors.7.It has been two days since we landed on Mars. 我们登上火星已经两天了.同义句：It _two days _

16、we landed on Mars.练习：a.自我们上次上街购物已经是两个月了。It _ _ two months _we _ shopping.b.他父亲死了十年了。It _ ten years _ his father _. 同义句：a. His father _ ten years _. b. His father _ _ _ for ten years.8.Whats worse, our water supplies were very low. 更糟糕的是，我们的水供给是非常少。点拨：supply 供给(名词) 链接：supply 供应(动词) supply sth. for sb

17、.= supply sb. with sth.给某人供应某物.9.I often miss the family, but the excitement of being on Mars is worth it. 虽然我经常思念家人，但火星探险的兴奋和冒险还是值得的。点拨：be worth sth. 值 ,链接： be worth doing sth. 某事值得做。练习：这事值得我们付出劳动。It _ _ our work.这本书值得一读。The book _ _ _Unit4 Topic2 SectionD 精品学案一、预习热身。翻译：A:millions of years_ go roun

18、d the sun_a small part of the universe_ beyond the solar system_send us a message_ so many stars_with the help of._Some spaceships have gone beyond the solar system. _二：重难点释疑。1.And there are seven other planets that also go around the sun. 还有另外七颗行星同时绕着太阳运行。思考：that also go around the sun在此是_从句.2.Some

19、 spaceships have gone beyond the solar system. 有些飞船已经飞出了太阳系。点拨: beyond - 在之外，超出范围(介词)。练习：a. There is a temple beyond the mountain. 译：_b. What happened was beyond my control. 译：_3.With so many stars in space, are we alone, or is there life on other planets in space?太空中有如此多的星星，是我们单独存在呢?还是在太空中的其他行星上也存在

20、生命呢？比较：alone -独自地（副词）；alone -独自的(指无人陪伴的客观事实)；lonely - 孤独的，寂寞的(指主观的感觉) ； lonely -偏僻的。练习：a.她独居，但并不感到寂寞。She lives _, but she doesnt feel _.b.去年他独自去了一个偏僻的小村庄。He went to a _ village_ last year. 单项选择( )1.I wont have a trip to Mount Huang unless Amy _, either. You mean youll go if Amy goes?will invite B. i

21、nvites C. is invited D. will be invited( )2.She was heard _ an English song in her home last night. A.sing B. sang C. to sing D. singing( )3.Wow! What a beautiful coat! I bought it in Suzhou last year. Its _ silk. Its dear.A.made of B. made from C. made in D. made by( )4.Two years _ since I came here. A.passed B. has passed C. have passed D. past( )5. _ the weather is fine tomorrow, we will go fishing. A.As well as B.As soon as C .As long as D.As far as