Unit 10 I ’ve had this bike for three years.Section A1. for +一段时间表示动作持续一段时间,用于现在完成时2.keep （kept ; kept）保留用作系动词，保持（某种状态），其后常接形容词作表语。
Please keep quiet / silent! 请保持安静！用作实义动词(1)保管；保存；保留Please keep these things for me while I am away.(2)赡养；饲养I used to keep sheep in my childhood.(3)坚持；继续接V-ing 形式作宾语。
If you keep practicing your spoken English, you'll soon make great progress.(4)阻止；阻碍keep sb/sth from doing sth 其中介词from 不能省略The heavy rain didn't keep them from watching the football match.(5)保持其后常接复合宾语，表示使（某人或某物）保持某种状态或使某一动作继续。
① keep + sb/sth + 介词If your hands are cold, keep them in your pockets.② keep + sb/sth + 形容词These gloves will keep your hands warm.③ keep + sb/sth + V-ing ，“让某人/ 某物一直……”，强调动作的持续性。
I'm sorry I've kept you waiting. 很抱歉，让你久等了。
keep a record 保持记录，keep in touch (with)保持与……的联系keep out (of) 把……关在外面keep up 保持；使……不能入睡keep one's / an eye on密切注视keep away (from) 离开keep in mind 牢记keep one's word 遵守诺言3.bring back (v+adv) 使回想起；使回忆起4.in need 需要；需求in danger 在危险中in trouble在困境中in silence 在沉默中in good health 在好的健康状态中A friend in need is a friend indeed. 患难见真情not... any longer与not... any more常置于句末。
He can no longer walk. = He can’t walk any longerThe little girl no more cried. = The little girl didn’t cry any more.6.since 自从Since +从句（一般过去时），主句用现在完成时He has studied very hard since he came to our school.7. for 给；为了介词for用法归纳(2)(表利益)为，为了。
What can I do for you? 你想要我什么？8.a couple of 几个；一些= a few 后接可数名词复数a couple of 一对,优指夫妻、情侣I’llb e back in _______________days. (几天)9.a bit 稍微；有点儿(1)a bit和a little在肯定句中, 修饰动词、形容词、副词和比较级,"一点儿"。
The speaker spoke up a bit/a little so as to make himself heard more clearly.演讲者把嗓门提高了一点儿,以便使别人听得更清楚。
(2)a little可以直接作定语修饰名词,a bit修饰名词，需后面加of构成短语,两者都只能修饰不可数名词There is a little/a bit of food left for lunch. 午饭只能吃剩下的一点食品了。
10.check out 查看；观察check v检查11. grow up 成长（常用于指人或动物）12.clear out 清理；把……清空clean up 清理；使整洁13. decide v决定→-decision n决定(1)decide to do sth= make up one’s mind to do sth 决定做某事(2)make a decision 做决定14.no longer = not ... any long 不再【在句中位置】no longer 位于助动词、情态动词或实意动词之后；not ... any longer not 常与助动词或情态动词连用，any longer 位于句末。
I no longer live in this city. = I don’t live in this city any longer.I have no more money to give you.= I don’t have money to give you any more.15.own v 拥有→owner n 物主of one’s own 某人自己的the owner of … ……的所有者16.lose (lost , lost) 失去I hope we won’t lose the competition.17.part with 与……分开；失去（尤指舍不得的东西）They were sorry to part with the old house.18.certain(1) 某种；某事；某人（在句中只能做定语，常与不定代词a连用，可修饰单、复数名词）A certain person called on me yesterday.(2) adj. 确实的，无疑的be certain of 对某事有把握They are certain of success.be certain to do sth 肯定做某事He is certain to come.be certain +that确信I’m certain that he’ll come.19.as for 至于；关于（后跟名词、代词或动名词作宾语）As for computer, I’m not telling you anything.20.to be honest = to tell (you) the truth老实说；说实话【注】honest 以元音音素开头，所以前面的定冠词要用an.21.for a while 一会儿22.do with 处理；对付（某人或某物）Section B- Self Check1. by(1)by doing sth 通过…方式by studying with a group【注】介词短语作方式状语，回答以How开头的问句，表示“怎样做”。
(2) by+ 交通工具（交通工具前不能加限定词）by bike by trainby the way 顺便问一下by accident= by chance 偶然地by mistake 错误地one by one 一个接一个step by step 一步一步地little by little 逐渐地by the time 到……为止by oneself 独自地by and by 不久之后2. once or twice 一两次once = one time一次twice= two times 两次三次或三次以上用：“基数词+times”three times 三次four times 四次three or four times 三到四次3. search v 搜索；搜查【记】research v研究，调查→ search search for 寻找；搜寻They searched for him.st(1)adj. 刚过去的；最后的last time at last 最后(2) v 持续（可以跟一段时间连用）6.return(1) v 回；返回He returned home yesterday. (2) v 归还；放回He returned her book7. be back 返回（强调状态，若表示“回到某地” 则要在其后加介词to）We are all happy to be back to school after the long holiday.go back 走回来get back 回去come back 回来give back 归还run back 跑回look back 回顾8. shame n 羞耻；羞愧；惭愧It’s a shame to do sth 做某事是可耻的It’s a shame to lie.在口语中常用That’s a shame! / It’s a shame! /What a shame!” 真遗憾；多可惜啊9. regard 将……认为，把……视为regard…with… 对……持某种态度regard … as … 把…… 当作…… I regard you as my friend.10.be true of 符合于；对……适用11.count v 数数The little girl can count.12. century n 百年；世纪世纪的表达法：(1)表示多少世纪要用序数词，序数词前一定要加the.在……世纪in the + 序数词+ centuryHe was born in the 20th century.(2)表示某世纪某年代，首先要用定冠词，然后在年代后加s.…….世纪…… 年代in 1840是= 1840’s 19世纪40年代the 1860s 19世纪60年代13. according to + 名词依据；按照14.opposite(1) prep对面的；另一边的= across from.We live on the opposite side of the street.(2)adj. 相对的；相反的15. a symbol of … ……的象征Blue is a symbol of peace.16.in one’s time 在某人一生中= in one’s lifeIn my time, my happiest thing is that I met you.17.especially 尤其；特别；格外侧重强调某物超过其他全部，突出特别的程度。