Unit2Nosmoking,please.ppt

,unit 2 no smoking ,please,1.go ahead * - can i use your dictionary? - go ahead. (你用吧） * go ahead with ones work (go on with) * the policeman examined the cars and allowed them to go ahead. (往前走） 归纳： ahead of 意为“在时间、空间上在之前”； 比 好 a. he is two classes _ (比早）me.,ahead of,b. they are four hours _ (比晚） beijing time.,c. we finished the work _ (提前）,behind,ahead of time,- do you mind if i use your tape recorder? -_. certainly, please do. b. no, you cant use it. c. yes, of course not. d. no, go ahead,2.catch fire * dry wood catches fire easily. set fire to = seton fire put out a fire break out (火灾） 发生 a. who_ the house is unknown.,set fire to,b. the fire _ at night . it was not _ until the firefighters came .,broke out,put out,c. turn off the gas. the pan is _.,on fire,辨异 be on fire 表静态 ， catch fire 表动态 警示 注意区别 ： last ; spread ; make ; light,3. by 的用法 （1） sell sth. by the pound (2) sell eggs by the dozen (3) lose the match by one goal (4) this room is forty feet by twenty. (5) rent a car by the day (week/month) (6) pay sb by the day/hour in calories/pounds/meters * luckily , the bullet narrowly missed the captain _ an inch. (2002 上海高考题） a. by b. at c. to d. from,4. custom/ habit custom 指长期形成的包括habit 在内的风俗，是社 会风尚、礼仪、习惯的总和。多指社会或 群体的风俗、习惯。 habit 指一种不断重复的行为，这种行为或倾向， 一时难以改变。多指个人习惯。 many people are still in _ habit of writing silly things in _ public places. (nmet 94) a. the ; the b. a; 不填 c. the ; 不填 d. 不填； the,* once_(form), a bad habit is hard to kick.,formed,归纳：* form /get into/ fall into/ develop a habit break away from/ kick/ give up/get out of a bad habit,when you go abroad, you find its difficult to get used to other countries _. a. customs b. habits c. practice d. instructions,a,5. chance n. 机会，希望，可能性 * there is no chance _ the child will get well.,that,there is little chance of their team winning. 归纳: theres no chance /hope of doing sth. theres no need /time for sth/sb to do sth theres no doubt about sth/ that theres no knowing when he will be back. by chance,归纳： chance to do sth * it chanced that i was out when he called . * i chanced to be out when he called. 6. reduce v. * the number of the words in the report should be reduced to 800. 警示 ： increase /rise/grow 与by 搭配，表程度； 与 to搭配，表“增加或减少到” the number of the employees has grown from 1,000 to 1,200 . this means it has risen _ 20 percent. ( 99 上海高考题） a. by b. at c. to d. with,7.compare v. 比较 compare with / to 跟相比较 compare to 把 比喻成 * compare yourself with your classmates ,and youll find you dont study so hard. * comparing these two languages, you know the differences. * people compared him to be a little mouse. * girls are often compared to flowers. * compared to/with 跟 相比起来（在句中做 状语，可放在句首或句尾） compared to/with many women , you are indeed very lucky. * compare notes (with sb),8. give up 停止，放弃 give up sth /doing sth * not being in good health, he has to give up playing football. * smoking does great harm to you, so its better to give it up. *all the girls swam the lake except two, who gave up halfway. give away 1) 赠送 he gave away most of his money to charity. 2) 泄露 someone in the gang gave him away to the police.,gave off 散发，发出（液体，气体，气味） give in (to) give out 1) hand out 2) announce the news of the presidents death was given out in a radio broadcast. 3)be used up 用光 after a month, their food supply gave out. 4) be worn out 筋疲力尽,9.share v. share sth(out) (among/between sb.) share (sth) with sb share (in) sth n. 分得的一份who has eaten my share of the sweets? 警示 share , spare,spend 区别 * let harry play with your toys as well, clare- you must learn to _.(nmet 2000) a. support b. care c. spare d. share,d,10. therefore/ so therefore adv . so conj. she went to a party and therefore she didnt study her lessons.,* he injured his leg and _ couldnt play in the game. a. therefore b. however c. in which case d. in this way,a,11. go without 不吃，不用； 没有 勉强对付 e.g. sometimes they went for days without washing their faces. * the climbers had to _ hot food in the snow covered mountain area for three days. a. eat b. go without c. go with d. bring,b,12. permission n. 同意；许可 归纳： with ones permission without permission ask(sb. for) /give permission permit n. 许可证 ones driving /work permit v. permit sb to do sth permit doing sth be permitted to do sth e.g. the rules of the club do not permit smoking. 与permit 用法相似的 词还有allow ,advise, forbid,sentence structure if not /so /any/ possible/necessary if not 省略句，代替上文的短语与从句 please join us if you can. if not, call me up. b. if so 用so 避免重复前面所说过的内容，用于代替肯定的从句 if so, why didnt you tell me? c. if any 若有，即使有 im afraid theres very little food left, if any. d. send it by e-mail if (it is) necessary. e. take this camera with you , if possible.,grammar : 表语从句 （1） that 连接（不可省略） the reason is that i missed the early bus. ( 2 ) whether 引导（注意表语从句不可用if) the question is whether we shall attend the meeting or not. ( 3） 连接代词和连接副词(what,who,where等） (4) 其他连词(because ,as if) this is because he doesnt know it. she looks as if she were a boy. 2. 高考常考点主要是引导词的正确选择 my trouble is that i dont have much experience in this kind of work.,课堂检测 1.although she received a lot of money ,she _ sad because she could never see her son again. a. continued b. went on c. remained d. kept on,2. - smoking is bad for your health. -yes, i know. but i simply cant _.(2002北 京春招） a. give it up b. give it in c. give it out d. give it away,3. last year the number of death increased by 2% - 5% ,_ the year before last. a. comparing to b. comparing with c. to compare with d. compared with,4.-do you mind if