八年级上册知识点总结

1、第一单元1. cheeron: 为加油Would you like to come and cheer us on? 你愿意来为我们加油吗？2. grow up: 长大成人 What are you going to be when you grow up? 你长大了想做什么？3. in the future：将来Im going to be a teacher in the future. 我将来要当一名教师。4. be good at=do well in ：擅长,在方面做得好She is good at long jump. = She does well in long jump.她擅

2、长跳远。5. take part in=join in =be in+活动：参加活动join+sb./组织：加入某人的行列或某个组织She is going to take part in the sports meeting.她将要参加学校运动会。I would like to join you. 我愿意加入你们的行列。6. be good for :对有益be bad for: 对有害Drinking water is good at for our health. 喝水对我们的健康有益。Smoking is bad for our lungs. 吸烟对我们的肺有害。7. all over

3、 the world: 遍及全世界Playing soccer is popular all over the world. 踢足球在全世界流行。8. the day after tomorrow：后天They are leaving for Japan the day after tomorrow. 他们明天将会离开日本。（这个句子是现在进行时表示将来要发生的事情。）9. keep fit =keep healthy :保持健康Walking is a good way to keep fit. 散步是一种保持健康的好方式。10. leave for：动身去某地They are leavin

4、g for Japan the day after tomorrow. 他们明天将会离开日本。（这个句子是现在进行时表示将来要发生的事情。）11. fall ill=be ill :患病，病倒But one of my teammates fell ill. 但是我的一个队友生病了。12. give sb. a hand： 帮某人一个忙Could you please give me a hand? 你能帮我个忙吗？13. shout at sb.：斥责某人，对某人大声说话Dont shout at me like that. 不要那样冲我大喊。14. do ones best： 尽（某人）最

5、大的努力Michael doesnt do well in soccer but he did his best to do it.迈克虽然不擅长足球，但是他尽力去做了。15. be angry with sb.：对某人生气Kang Kang , Micheal, dont be angry with each other. 康康，迈克，不要互相生气了。16. talk about：谈论You two should talk more about the game before you play. 你们两个在比赛前应该多谈论比赛的事儿。17. at first：起初，起先At first, i

6、t was an indoor game so that students could play in bad weather.起初，它是一项室内游戏，以便学生们能够在恶劣的天气能够玩耍。18. come into being ：形成，产生In 1946 the National Basketball Association (NBA) came into being.1946年的时候，NBA成立。19. for example: 例如 （此短语后面一定要有个尾巴，就是（，）For example， you cant hold the ball and run with it. 例如，你不能抱

7、着球不放并且抱着球跑。20. exciting :令人激动的，使人兴奋的，主语是物excited：激动的，兴奋的， 主语是人Im sure the sports meet will be exciting.我确信运动会将会很令人激动。We are so excited. 我们太激动了。21. relay race：接力赛Li Ming will take part in the boys 800-meter relay race. 李明将会参加男子800米接力赛。22. stand for：代表，象征The five rings stand for the five parts of the

8、world. 五环象征着世界上的五个部分。23. at least：至少You can find at least one of these colors in the flag of each country in the world. 在这些颜色中，你至少可以找到一种颜色与世界上各个国家的国旗颜色是一样的。24.arrive in+大地方 arrive at+小地方They arrived in Beijing yesterday evening. 他们昨天晚上到达北京。The bus arrived at the bus stop on time. 公交车准时到达了公交车站。第二单元1.

9、 have a cold: 患感冒 have the flu:患流感2. Whats wrong with you? =Whats the matter with you?你怎么了？3. day and night:日日夜夜I have a terrible cold. I cough day and night. 我患了严重的感冒，我整日整夜的咳嗽。4. lie down:躺下You should lie down and rest. 你应该躺下休息。5. take care of =be care of:照顾 The doctor told me to stay in bed for a

10、week and take care of myself.医生告诉我呆在床上一周并照顾好自己。6. be worried about: 担心Im worried about my lessons. 我担心我的课。7. asas possible: 尽量地They must give up smoking as soon as possible. 他们必须尽快地戒烟。8. go ahead:开始做，走在前面May I ask you some questions, Dr. Li? 我可以问你几个问题吗，李博士？Sure, go ahead.当然可以，您请问。9. in fact: 事实上In f

11、act, smoking is really unhealthy. 事实上，吸烟真的不健康。10. build sb. up:增强的体质We should exercise often to build us up.我们应该经常锻炼来增强我们的体质。11. all the time:一直We should keep our rooms clean and the air fresh all the time. 我们应该一直保持我们的房间干净，空气清新。12. on the other hand:另一方面On the other hand, you may feel ill if you are

12、 always unhappy. 另一方面，如果你总是不快乐，你可能会感觉像生病了。13. instead of: 代替（其中of 是介词，后加名词或者V-ing）14. stop doing sth. 停止正在做的事。Stopping talking! Listen to me, please. 不要说话了，请听我说。15. stop to do sth. 停下来一件事，去做另一件事。He stopped to talk with my father. 他停下来去跟我爸爸说话。16. forget doing sth. :忘记做过了某事I forgot closing the window.

13、 It was closed when I came into the room. 我忘记已经关过窗户了。 当我走进房间的时候，窗是关着的。17. forget to do sth.忘记将要做某事。I forgot to close the window when I left the room in the morning. 早晨当我离开房间的时候，我忘记关窗了。18. Must 提问。肯定回答：Yes, must. 否定回答：No， neednt./ No, dont have to.-Must we take some medicine to prevent the flu?我们一定要服

14、些药去抵御流感吗？-Yes, we must. 是的，我们一定要。-No, we dont have to. / No, we neednt. 不，我们不需要。19. be surprised to do sth. 对感到很惊讶。I am surprised to hear the news. 听到这个消息我感到很惊讶。19. How long : （问时间）-How long have you been like this? 你像这样多久了？-About one week.大约一周了。How often：（问频率）-How often do you have a shower? 你多长时间洗

15、一次澡？-Twice a week. 一周两次。20. too many+ 可数名词复数There are too many bags on the desk. 书桌上有许多书包。 too much+不可数名词There is too much water in the glass. 杯子里有许多水。 much too+形容词/副词The question is much too easy for me. 这个问题对于我来说太简单。 第三单元1. “喜欢”的六种表达方式be interested inbe fond ofprefer + doing sth.enjoylovelike2. ta

16、ke a shower:洗淋浴3. just so-so:一般般4. agree with sb.:同意某人的看法I agree with you. 我同意你的看法。agree on/with sth.: 同意某物We agree on/with the idea. 我们同意这个想法。agree to do sth. 同意去做某事We agree to climb mountains. 我们同意去爬山。5. in a low voice:低声地说6. wake up:醒来，唤醒7. make faces:做鬼脸8. What a pity! 真遗憾！真可惜！9. do outdoor acti

17、vity做户外运动do indoor activity 做室内运动10. not all:不全 （表示部分否定）-Are they all from China? 他们都来自中国吗？-Not all. Some of them come from Japan.不全是。他们中的一些人来自日本。11.learnfrom:从学习.We can learn a lot about history and people from stamps.我们能从邮票中学习很多关于历史和人文的知识。12.stickto:在贴You need the glue to stick them to the backgro

18、und paper. 你需要胶水去把他们贴在背景纸上。13.lend sb. sth.=lend sth. to sb.:（对于主语来讲）向外借出 lend的过去式是lentI lent you all my money. = I lend all my money to you. 我把所有的钱都借给你了。 borrow sth. from sb.（对于主语来讲）向里借入I borrow a bike from Tom. 我从汤姆借了一辆自行车。14.What kind of ?什么种类的?-What kind of music do you like? 你喜欢什么种类的音乐？-Its har

19、d to say. 很难说。15.in ones free time:在某人空闲时间I usually listen to music in my free time. 我在空闲的时间经常听音乐。16.notat all:根本不 一点也不-Do you like classical music? 你喜欢古典音乐吗？-No, I dont like it at all. 不，我一点也不喜欢。17.be popular with sb.: 受到某人的欢迎Pop music is popular with the young people. 流行音乐受到年轻人的欢迎。18.be famous for

20、:因而著名Yao Ming is famous for playing basketball well. 姚明因篮球打得好而著名。20. 同级比较结构：as+形容词/副词+as “和一样”Lucy is as tall as Lily. 露西和莉莉一样高。I go to school as early as Tom. 我去学校跟汤姆一样早。21. sothat:如此以至于 （引导结果状语从句）The book is so interesting that I read it again and again. 这本书如此有趣以至于我一遍又一遍地读。 so that:以便 （引导结果状语从句）To

21、m gets up early so that he can go to school on time. 汤姆早早地起床以便能按时到达学校。22. 关于反身代词(oneself)的几个常用短语help oneself to :随便吃，请自便Lily, help yourself to the pizza,please. 莉莉，请随便吃点披萨饼吧。enjoy oneself: 过得愉快We all enjoyed ourselves during the winter holiday. 暑假期间我们都过得很愉快。by oneself: 亲自地，独自地At the age of three, he

22、 was able to play the piano by himself.在他三岁的时候，他就能够独自地弹奏钢琴了。teach oneself: 自学The boy is very clever. He taught himself English every day.这个男孩很聪明，他每天自学英语。 lose oneself in: 沉迷于专心致志于Students lost themselves in those story books. 学生们专心致志地读着故事书。23. take lessons=have lessons:上课At the age of four, he start

23、ed taking music lessons. 在他四岁的时候，他就开始上音乐课。24. answer the phone:接电话Jane answers the phone. 简接了电话。25. die:死去（动词）died:死去（过去式） dead: 死的（形容词）26. tooto:太而不能 形容词 动词原形She is too young to go to school. 他太小了而不能去上学。The weather is too cold to go out. 天气太冷了而不能出去走。第四单元1. thousands of:成千上万Thousands and thousands o

24、f animals live in the rainforests.成千上万的动物居住在雨林里。2. die out:灭绝，消失Without rainforests, many beautiful plants and animals would die out,没有热带雨林，许多漂亮的植物和动物将会灭绝。3. feed on:以为食Pandas feed on bamboo. 熊猫以竹子为食。4. less and less:越来越少But now, they have less and less land to live on. 但是现在，他们可居住的土地越来越少。5. in dange

25、r:处于危险状态out of danger:脱离危险Now they are in danger because many people make their ocean home dirty and others kill whales for their meat.现在他们处于危险状态是因为许多人让蓝鲸的海洋之家变得脏兮兮，还有许多人为了蓝鲸的肉杀死蓝鲸。6. face to face:面对面I can also chat with my grandmother face to face. 我也能跟我的奶奶面对面地聊天。7. look up:查阅It is possible to look

26、 up new words in an online dictionary.到在线词典上查询单词是有可能的。8. 比较级的结构：比较级+than+另一个比较对象I think the countryside is much quieter than the city.我认为农村比城市更加安静。9. 最高级的结构：the +最高级+in/of/among+比较范围（in表示前后两个名词不同类，of表示前后两个名词同类）Li Ming is the tallest boy in our classroom. 李明是我们班级里最高的男孩。（李明和班级不同类，用介词in）I think the she

27、ep are the nicest of all the animals. 我认为羊是所有动物里面最温顺的。（羊和动物是同类，用介词of）10. the+比较级，the+比较级.The more, the better. 越多越好。The more you eat chocolate, the fatter you will be.你吃的巧克力越多，你将会变得越胖。11. 比较级+and+比较级：越来越The weather is getting colder and colder. 天气变得越来越冷了。12.as we know:众所周知 bothand:二者都As we know, both animals and plants are our friends. 众所周知，动物和植物二者都是我们的朋友。13.paly an important part in sth.在中起到重要作用。Rainforests play an important part in protecting the nature.热带雨林在保护自然中起到了重要的作用。14.fall down:倒塌，跌落Many buildings fell down. 许多建筑物倒塌了。15