新版八年级上uint2知识点与练习

Unit2 How often do you exercise?1. exercise （v/n）的用法 1）（动）:锻炼. 如： He exercises every day.2) (可数名词)：“.操;练习”. 如：do morning/ eye exercises; do math exercises (不可数名词):“锻炼;运动”讲：如： We often do / take exercise on weekends.2. -How often do you usually go shopping? Sometimes/Twice a week. 有时候/一周两次.1) go shopping 意为“去购物”。Go+ v- ing : 表示进行某项活动。如：Go swimming/ shopping/skating/skiing/fishing/climbing/hiking 2)频率副词：always=all the time, usually, often, sometimes=at times , hardly ever, never (1).sometimes: 有时候；sometime：某时；some times：许多次/倍; some time: 一段时间hard (2). hardly(adv): 几乎不 硬的；困难的；严厉的；勤奋的 a hard writer 努力地； 猛烈地 study/rain hard 3）how often表示“多久一次”，是对动作的频率进行提问。其回答通常有： 频率副词： always, usually, often, sometimes, hardly ever, neverhow often 次数时间段: 如：once or twice a week every 时间段: every day (每天) 区别：everyday（每天的；日常的）注意：表示“一次或两次”时，一般用once和twice表示。如：once a month(一个月一次)而表示“三次或以上”时，则用“数词times”结构。如：five times a year (一年五次)4）由how构成的疑问词组的用法“多少”（1） howmany+ 可数名词复数 如：how many programshowmuch+不可数名词。 如：how much coffee 但how much=whats the price of.? 还有“多少钱”的意思 如：Howmucharethosepants?(2)how many times: “多少次”. 其答语表示次数。如：once ,twice，three times等(3) How old.? 询问年龄 如：How old are you? I am five.“how long?”(4) 多久(时间) 常用 for two days，for three hours等回答。 多长（某物的长度） 如：-How long is the river? - 10 kms. (5)how soon 用来询问过多久，多久以后，其答语是in two hours，in three days等。 如：How soon wil he come back？ In an hour。3. “空闲的”：Are you free tonight? 4. at least 至少 at most 最多be free “自由的”： a free country freedom(n) 5. stay up 熬夜 full “免费的”： work for free. 6. junk food 垃圾食品5. “满的；饱的” be full of : The bottle is full of water. 瓶子里装满了水。 “忙的”=busy He had a full life 6She says its good for my health. 她说那对我的健康有益。（1）be good for：“对有好处”。 如：Doing exercise is good for our health.（2）be good at：“擅长于” 如：He is good at playing football.(3) be good to sb./sth: “对好” 如：The old woman is good to us. (4) be good to do sth.: “适合；宜于” 如：The water is good to drink. (5) be good with: “与相处好” 如： The teacher is good with his students.7go online = use the Internet ：上网 8. Teenager magazine 青少年杂志9. more than two hours=over two hours:超过 10. go to the dentist: 去看牙医11. keep healthy = stay healthy = keep in good health: 保持健康12. ask sb. to do : 叫做某事 Teacher asked me to clean the classroom. ask sb. not to do sth.: 叫不要做某事 Teacher asked me not to clean the classroom. ask sb. about sth. : 问某人某事 We asked our students about their free time activities. ask sb. for sth. : 向某人要求 如：ask teacher for help 13. help sb. with sth. 如：They help me with this problem. 他们帮助你解决这个问题。 help sb.（to）do. 如：They help you (to) solve this problem. 他们帮助你解决这个问题。14. (n) 惊讶: to ones surprise 令某人惊讶的是 in surprise 惊讶地 surprise be surprised at sth. 对 感到意外 (v) 使惊奇、意外： be surprised to do sth. 惊讶做某事 be surprised that + 从句 如：I was surprised at the news = I was surprised to hear the news.15. fifteen percent of the students 百分之十五的学生 16. swing dance 摇摆舞17. although(conj):“尽管；虽然”，表示转折关系，同义词有though, 不能与but同时使用。如： Although theyre neighbors, they dont play together. = Theyre neighbors, but they dont play together. 尽管他们是邻居，但是他们不在一起玩。18. maybe (adv): 也许，大概 (Maybe) he (maybe) knows it. May + v(原)：也许，大概 He may know it.如：Maybe he is at home.= He maybe is at home.= He may be at home. 19. Its good to relax by using the Internet or watching game shows. by: He learns English by singing English songs. 通过 方式 He went home by bus.= He went home on the bus= He took the bus home. through 通过 方式+ 名词： The best way to relax is through exercise （从里面）穿过： Climb through the window. 注意： 横过（从一边到另一边） walk across the street.例如20. such as =like + 名短： 如： such as winning the game. for example + 句子： 如：Its healthy for the mind and the body.21. Old habits die hard. 恶习难改. die(v):死亡；消失 death(n): 死亡；dead(adj): 死的； dying(adj): 垂死的；临终的；（植）枯萎的 dying wish-遗言22. Here are the results. 以下是结果。23. Most students use it for fun and not for homework.24. You can spend time with your friends and family as you play together.spend 度过（时间） 如：spend the weekend with family 花费（时间、钱） 如：He spent 20 yuan (in) buying the magazine. 同义句：He spent 20 yuan on the magazine. He paid 20 yuan for the magazine. It took him 20 yuan to buy the magazine. The magazine cost him 20 yuan.练习： 词汇1. The old man _(锻炼)every morning. 2. I often _ (购物). on weekends. 3. We must _(保持 )our classroom clean. 4. There are some _(不同) between the two pictures. 5. He _ (几乎不)goes to restaurant for dinner. 6. Katrina doesnt often _ (喝)coffee, , she likes green tea. . 7. My eating _(习惯) are not very good. 8. Everyone must _(设法) to work hard. 单项选择（一）( )1. I like English very much, so I _ listen to the tape in the morning. A. usually B. hardly ever C. never( )2. 2. Milk is good _ our _. A. to; healthy B. to; health C. for; healthy D. for; health ( )3. What does your father do in the evening?He usually _. A. watch TV B. exercises C. read books( )4. _ do you go skating? Every day. A. How often B. How manyC. When( )5. Most students in my class _exercise every day. A. does B. do Cis doingD. are doing( )6. _ students in your class are from Beijing? Only one. AHow often BHow many CHow much ( )7. _do your grandparents come to see you? Twice a week. AHow often B. How many CWhen ( )8. What _ she _ on weekends? A. is, do B. does, does Cdo, do Ddoes, do ( )9 Hes a very lazy student, as a result, he always gets _ grades. A. a good B. high C. terrible D. an awful( )10. Although he is very old, _he works very hard. A and B but C / D so ( )11 The old man is well because he often_. A. exercises B. drinks C. sleeps D. plays ( )12. My father tries _ vegetables eleven to twelve times a week. A. eat B. eating C. to eat D. ate( )13. Please try to have more fruit, _ youd like to keep in good health. A. and B. so C. if D. as for( )14. Is her lifestyle _ yours?A. the same B. the same as C. same as D. the same to( )15、If you want to be healthier, you must eat _ junk food, I think. A. more B. less C. fewer D many( )16、_ does he do sports every day? He does sports for two hours every day. A. How many B. How often C. How long D. How单项选择（二）1. _more fruits and vegetables is good _ our health.A. Eating; to B. Eats; for C. Eating; for D. Eat; for2. How_ do you read English books? -Sometimes.A. long B. often C. far D. much3. A lot of vegetables _you to keep healthy. A. make B. want C. try D. help4. Peter is _because he hardly ever exercises. A. tired B. happy C. healthy D. unhealthy5. He knows a lot _he is a child.A. so B. although C. but 6. My dad _a player when I grow up.A. wants me to B. wants me to be C. became 7. My mother_ surfs the Internet, she likes watching TV.A. doesnt hardly ever B. hardly ever C. isnt hardly ever 8. _does he do on the weekend?- He often helps his mother with housework.A,How B. How often C. What 9. - What_ you usually _on weekends? -I usually _ violin.A. did; do; play the B. do; do; playC. do; did; play D. do; do; play the10. -Are you late for class? -_.A. Yes, never B. Yes, sometimes C. No, ever 11. _he was tired, _he didnt stop _.A. Although, but; to rest B. Though; / ; working C. Although; / ; resting 12. His lifestyle is the same _.A. to my brother B. to mine C. as mine 13. Can you help me _the house?A. cleaning B. with clean C. of cleaning D. clean14. Li Ming was born_ May 11, 1989 _Guangzhou.A. in; on B. on; in C. in; at D. at; in15. She always finishes her homework on time. She _ leaves it for tomorrow.A. always B. never C. usually 16. Your English is much better. - .A. Y