初二数学不等式和证明练习题.docVIP

1.Peter ,could you please take out the trash? 彼得，你能把垃圾倒了吗？ 【解析1】Could you please do sth ?请你（做）......好吗？ 用于提出请求，希望得到对方的肯定回答，说话的语气比较客气委婉。 Could 不是can的过去式，是委婉、礼貌的说法。回答用can. 【常用答语】肯定回答：Sure./ Of course./ Certainly./No problem.否定回答： Sorry , I can’t 【解析2】take out 取出（v+ adv） 【注】: 跟代词做宾语，代词放中间； 跟名词做宾语，可放在中间，也可放在后边 【短语】take out the trash 倒垃圾 take a walk 散步 take away 拿走，取走 take back 收回 take place 发生 take off 脱下； 起飞 The gift is in the box. You can take it out. 2. Can you do the dishes.？那你可以洗盘子吗？do the dishes 洗碗 【结构1】do the +名词： do the dishes/ laundry 洗餐具/衣服 【结构2】do the +动词-ing do the cleaning 打扫卫生 【结构3】do one’s + 名词 do one’s housework/ homework 做家务/家庭作业 【结构4】do some +动词-ing do some reading/ shopping 读写书/购物 Could I at least finish watching this show? 至少让我看完这个节目可以吗？ 【解析1】Could I do a sth? 我可以做......吗？用于表达请求，语气比较委婉。 Could I go out with my classmate this weekend? 【解析2】at least 至少，多指数量或程度上的最低限度。(反) at most 至少，不超过 【解析3】finish v 结束；完成 finish doing sth 做完某事 I think two hours of TV is enough for you! 我觉得你看两个小时的电视已经足够了。 【解析1】two hours of TV表示时间、距离、金额、度量等词语作主语时，通常被视作整体，谓语动词用单数形式。 How time is flies! Three years _______(be) really a short time. 足够的，充分的（在句中作定语或表语） 【解析2】enough I don’t have enough money with me. 足够；充分（放在形容词；副词后） The river is deep enough for swimming. 【记】 Mr. Smith has enough money ,but he isn’t kind enough to help others. 【注意】enough 修饰名词时，置于名词前；修饰形容词时，置于形容词之后。 Could you take out the rubbish,fold the clothes and do the dishes? 你能把垃圾倒了。把衣服叠好，再把碗洗了吗？【解析】take out 拿出；取出 take 的用法： Please take some books to the classroom. Take this medicine three times a day. take They usually take the bus to work. It takes me two hours to do my homework every day. 【拓展】take 构成的短语： take a walk 去散步 take