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the help of a knife.(5) help yourself / yourselves to … “讓某人隨便自用…”Help yourself / yourselves to some chicken.(6) help sb. with sth.I often help my classmates with their English.16. And unless we deal with our problems, we can easily bee unhappy.“除非…;否則…”unless 相當(dāng)于 if … not … “如果不…,…”= And if we don’t deal with our problems, we can easily bee unhappy.(1) You will miss the bus unless you hurry.(2) I’ll be back tomorrow unless there is heavy snow.(3) You will fail in French unless you work hard.(4) Don’t touch anything unless your teacher tells you to.17. plain“抱怨,埋怨,訴苦”She plained to me of his carelessness.The old woman plained about her brother to the neighbour.He plained that he couldn’t find a job anywhere.18. (1) too many修飾可數(shù)名詞復(fù)數(shù)I have too many books to read, I have no time to play.(2) too much修飾不可數(shù)名詞It cost too much money, so I couldn’t buy it.(3) much too修飾形容詞和副詞This desk is much too heavy, so I can’t move it.It’s very dangerous to drive a car much too fast.19. (1) try to do sth. “努力做某事”P(pán)lease try to find out who broke the window.Please try to finish the work before 2 o’clock.(2) try doing sth. “嘗試,試著做某事”You’d better try using another way to work out this math problem.Try doing more exercise, you’ll soon lose weight.(3) try hard to do sth. “努力干某事”He tried hard to swim to the bank.(4) try (= do) one’s best to do sth. “盡某人最大努力做某事”You should try your best to learn English well.(5) try + 賓語(yǔ)從句Try whether you can jump across the stream (小溪).The students are trying which method can work better.20. (1) think about表示“思考,考慮或?qū)Α心撤N看法”相當(dāng)于think ofHe is thinking about / of going to Australia for a holiday.What are you thinking about / of? (思考,考慮)What do you think about / of this novel? (認(rèn)為…怎么樣)(2) think of另有“想到,想起,想出”之意Who thought of the good idea? (想出)I can’t think of his name at present. (remember)He always thinks more of others than himself. (關(guān)心)(3) think over“反復(fù)仔細(xì)思考”I have thought over this problem for a long time.注意:about和of為介詞,可以說(shuō): think about / of itover為副詞,只能說(shuō): think it over21. (1) We have