高中英语必修四 Language points in unit 1.pptVIP

* 1. Jane has studied these families of chimps for many years and helped people understand how much they behave like humans. behave (well/badly) to /towards sb. (1) vi. to act; bear oneself 行为, 举止, 表现 e.g. She behaved with great courage. 她表现出了很大的勇气。 他对顾客的态度不好。 He ______________ to (towards) the customers. 你应该学会举止得体。 You should ______________. behaved badly learn to behave (2) vt. (oneself) in a socially accepted or polite way 举止适当或有礼 e.g. Please behave (yourselves), children. (3) vi. (of things) to act in a particular way (指事物) 有某种作用 e.g. 我的摄像机自从修好后一直很正常。My camera ____________________ since it was repaired. has been behaving well 【拓展】 behaviour n. 行为; 举止; 态度 e.g. Their behaviour towards me shows that they don’t like me. She was ashamed of her child’s behaviour. 2. However, the evening makes it all worthwhile. worthwhile adj. 值得的, 值得做的 e.g. a worthwhile experiment/job Nursing is a very worthwhile career. The experiment is worthwhile. be worthwhile doing / to do… 值得做…… e.g. It is worthwhile to do/doing the job. well worth reading. The book is _________________ = It is worthwhile to read the book. = The book is worthy of being read = The book is worthy to be read Compare: be worth (doing) sth. be worthy of being done/sth. be worthy to be done… 3. She spent years observing and recording their daily activities. 观察下列句子: 1) It was difficult to observe any change in Tom’s expression. 2) John’s classmates observed him enter the net bar. 3) I observed Mike walking along the street. observe意为“看到, 注意到, 观察到”, 常用结构为: observe sth., observe sb. do/doing sth. 4) The patients were observed over a period of several months. observe 意为“___________”。 5) All these traffic rules must be observed. observe意为“遵守”。 观察, 观测 根据汉语提示, 用observ