牛津英语9下知识点unit4

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1、9 下 Unit 4 Life on Mars、复习单词表A.拼读易错单词planet, polluted, rapid, increase, passengers, uncomfortable, tasty, specially, rapidly, circle,agreement, possibility, stranger, electronicB.重点单词用法1. polluted adj.被污染的 pollute v.污染 pollution n.污染2. rapid adj. 快的，迅速的 rapidly adv. 快地，迅速地3. increase v. & n.增加，增长4.

2、uncomfortable adj.使人不舒服的，不舒适的反义词：comfortable adj.使人舒服的，舒适的5.tasty adj.味道好的=delicious比较级：tastier 最高级：tastiesttastefultaste n.6. specially味道adj.5 tastelesstastyadv.专门地，特地有滋味的；有品位的；雅观的 无味的；无鉴赏力的 美味的- special adj.特殊的，特别的7. compare vt. & vi. 比较 compare.with. 意为“把.与.比较“。If you compare his work with hers,

3、you ll find hers ia much pare.to.意为“把.比作.”。Shakespeare compared the world to a stage.8. agreement n. 一致，同意 反义，impossible10.stranger n.外来者，陌生人-strange adj.奇怪的二、重点词组和重点句型用法A.重点词组1 . air tank氧气罐2 . dried food干粮3 . sleeping bag睡袋4 . power pack电源包5 . by the year2100到 2100 年时6 . all over again 再； 重新7 . at

4、 a/the speed of.以.的速度move at high speed 高速运行8 . in the form of.以.的形式9 . the journey to Mars 到火星的旅行10 .float off into space 漂浮到太空中11 . in some ways在某些方面12 .connect to.与.什么连接13 .circle around.绕.运转14 .be similar to.与.相似15 .by the way顺便问一下16 .carry out开展；执行17 .move away from. 离开.18 .after all毕竟19 .keep

5、an English diary t己英语日t己20 .with the development of. 随着.的发展21 .the rapid increase in population 飞速增长的人口22.large numbers of. = a large number of. 许多.修饰可数名词复数，作主语时，谓语动词用复数。number前可用large,small等修饰。以示程度。B.重点句型用法1Wow, I ve never thought about travelling into space. 哇，我从未想过到太空旅行。 一Me neither.我也没有。 think a

6、bout doing sth.考虑做某事 Me neither.=Neither have I.2 . How do you like life on Mars?你认为火星上的生活怎么样/How do you like.? = What do you think of.? 你认为.怎么样？3 .What would it be like to live on Mars?住在火星上将会是什么样子呢？What+be+ 主语 +like? .怎么样？4.Our own planet, the Earth, is becoming more and more crowded and polluted

7、because of the rapid increase in population.因为飞速增长的人口，我们自己的星球地球正变得越来越拥挤，污染越来越严重。5 .The gravity on Mars is only about three-eighths of that on the Earth. 火星上的重力只有地球上的八分之三。 分数表达法：分子是基数词，分母是序数词，如果分子大于1,分母要用复数形式，在分子与分母之间可加连字符也可不加连字符。 分数+of+名词结构作主语时，谓语动词的单复数视of后面的名词而定，如果名词是复数，谓语动词用复数形式；如果名词是单数或不可数名词，谓语动词

8、用单数形式。One third of the water is_dirty.Two thirds of the workers in our factory are young people.6 .Compared with life on the Earth, life on Mars would be better in some ways.与地球上的生活相比，火星上的生活在某些方面要好些。过去分词短语 compared with life on the Earth 在句中作状语。7 .Every student would have a computer at home connecte

9、d to an interplanetary network 。.每个学生家里都有一台电脑与星际网络连接。过去分词短语 connected to an interplanetary network 在句中作定语， 修饰前面的 computer.8 .Life on Mars would be interesting as well as challenging.火星上的生活，不仅有挑战性，还很有趣。as well as 不但.而且，既 又注意：这一短语在译成中文时，应先译as well as后面的内容，再译前面的。当as well as与主语连用时，在意义上强调前者，谓语动词应与其前的主语保持

10、一致。He as well as his friends likes going shopping.三、语法复习简单句和复合句之间的转换（二）1 .含有状语从句的复合句与简单句之间的转换在英语中，我们可以用 at the age of, because of, without等介词短语，将含有状语从句的复 合句改为简单句。He learnt to swim when he was eight years old.f He learnt to swim at the age of eight .He could not go to the party because he had too muc

11、h homework .f He could not go to the party because of too much homewor k.He cannot solve this problem if he has no help .f He cannot solve this problem without help .注意：转换时要注意时态和意思的一致性和准确性。2 .含有宾语从句的复合句与简单句之间的转换在英语中，我们可以用of., like等介词短语，将含有宾语从句的复合句改为简单句。The photos remind me that I travelled to the UK

12、 five years ago.fThe photos remind me of my trip to the UK five years ago .Are you certain that Tom is satisfied with the plan ?fAre you certain about Tom s satisfaction with the plan ?注意：常用的一些动词和介词的搭配有：remind somebody of.be sure/certain about.3 .含有定语从句的复合句与简单句之间的转换 在英语中，我们可以用 with., in.等介词短语，将含有定语从

13、句的复合句改为简单句。 Do you know the girl who is holding two books in her hand?fDo you know the girl with two books in her hand?The man who wears a blue shirt is our English teacher.fThe man in a blue shirt is our English teacher.四、语篇复习A.按照课文内容填空。At the moment, moving to Mars may be difficult to imagine, but

14、 many people believe that we will live on the Mars by the year 2100. Our own planet, Earth, is becoming more and moreand. It is we can start all over again and build a worldon Mars.with life on Earth, life on Mars will be better many ways. People will have morespace. We many even live in a with ten

15、bedrooms. Many people believe thatwill do most of our work and that we will have more time to.B.书面表达上周，你们班以Do You Want to Live on Earth or on Mars?”为题，进行了一场英语大讨论。卜表是讨论的结果:所占 比列观点选择居住在地球上 的学生七分 之五习惯了地球上的生活；食物鲜美；更容易出行和交流。选择居住 在火星上 的学生七分 之二地球上越来越拥挤，污染越来越严重；火星上生活更轻松，将有更多 的闲暇时间用于个人爱好；人们更健康，寿命更长。请你用英语介绍这次

16、讨论情况（100词左右，文章的开头已给出，不计入总词数）Last week, our class had a discussion called Do You Want to Live on Earth or on Mars? Here is the result of the discussion.范文:Last week, our class had a discussion called Do You Want to Live on Earth or on Mars? Here is the result of the discussion.Five-sevenths of the st

17、udents wanted to live on Earth. They are used to the life on Earth. They think the food is tasty and it s easier to go out and communication.Two-sevenths of the students wanted to live on Mars. They think Earth is becoming more and more crowded and polluted. They will feel relaxed when they live on

18、Mars. They will have more free time for their hobbies. People will be healthier and they can live for a long time.I think it must be fun to live on Mars. But we should also deal with the pollution on Earth. 五、熟记重点短语1. air tank2. dried food3. sleeping bag4. power pack5. by the year21006. all over aga

19、in氧气罐干粮睡袋电源包到2100年时再；重新7. at a/the speed of.以的速度move at high speed 高速运行8 . in the form of.9 . the journey to Mars10 .float off into space11 . in some ways12 .connect to/with.13 .circle around.14 .be similar to.15 .by the way16 .carry out17 .move away from.18 .after all以.的形式到火星的旅行 漂浮到太空中 在某些方面与什么连接绕.运转与.相似顺便问一下开展；执行 离开.毕竟19 .keep an English diary t己英语日t己20 .with the development of. 随着.的发展21 .the rapid increase in population 飞速增长的人口22 .large numbers of. = a large number of. 许多.