Unit 4重点短语.doc

Unit 4重点词组31.sharewith 与共享2.play with 玩弄，玩耍3.in danger 在危险之中4.feed on 以为食5.think about 考虑，思考6.enjoy nature 享受自然7.at night 晚上8. in the daytime 白天9.summer vacation 暑假10.thousands of 成千上万11.in fact 事实上12.find out 查明，发现13.in nature 在自然界14.take the place of 代替，取代15.instead of 代替，而不是16.mistakefor把错当17.seem to do 好象，似乎18.call for 要求19wake sb. up 将某人叫醒20.see sb.doing sth. 看见某人正在做某事21.use sth.ro do sth. 利用某物做某事22.spendon 在上花费时间或金钱23.be sure of 确信24.these days 现在，目前25.in alphabetical order 按字母表顺序排列26.look up 查阅27.pay attention to 注意，专心28.begin with 以开始29.and son on 等等30.ask （sb.）for sth. 向要31. more than 超过32.pull down 推倒，拆毁33.heavy traffic 交通繁忙34.wear out 磨损，用坏 35.used to do sth. 过去常常做某事36.do ones best 尽（某人）最大努力37.live models 真人模型38.the ancient world 古代39.be made up of 由组成40.jointogether 把连在一起41.regardas 把看作42.be worn out 被损坏知识点：1talk about life in the city, talk about sth 谈论关于think about 考虑，思考think of 认为，想到，想起2the beauties of nature自然美 the beauty of sth 的美3control the climate调节气候4We need them so much. 我们如此地需要它们。 Need to do sth 需要做某事Humans need water to drink, to cook and to clean.(不定式表目的“来”) , we need money to use.Without money, we cant live.Need sth 需要某物 so much 如此5thousands of people成千上万的人(约数) 类似词有hundred, million(百万)billion (十亿)，当这些词前面有具体数字时不论多大，这些词后面都不加s,而当这些词前面没有具体数字时，后面必须加S并且后面还加Of,one/two/three thousand and fifty people 一/两/三千零五十人（准确数字）6Actually/In fact事实上 7Save water/money节约， save ones life, 挽救某人的生命save the patients 救病人8feed on sth. 以。为食9be .in/out of danger处于危险中/脱离危险， in/out of trouble遇上麻烦/摆脱困境people/animals are in danger处于危险中的人/动物，dangerous people/animals危险的人/动物10use sth for doing sth =use sth to do sth 用什么东西来做什么Eg.We use knives for cutting things(for介词加ing).=We use knives to cut things(to为不定式). 11pay attention to sb./sth.注意 12begin with sth 以开头 =start with sth 13give it a try=have a try 试一试14find pleasure in doing sth从做某事中找到乐趣 类似have fun (in)doing sth15as we know 众所周知， 大家都知道，=as we all know 16such as例如, build as 建楼房当作, regardas把当作，但mistakefor把误认为17one of the oldest countries（复数）18the ancient world/times古时候的世界，远古时代19be made up of 由组成20.share sth with sb. 与某人分享某物21.be important to do sth 做某事是重要的 Be important for sb to do sth 对某人来说做某事是重要的22. tell sb. about sth 告诉某人关于某事情23.take the place of sb. =take ones place 代替某人，是动词词组instead of sb/doing sth . 代替某人/做某事，是介词词组。Take the place of sb. to do sth =do sth instead of sb.代替某人做某事eg.He took the place of me =he took my place.He will take the place of me to paly basketball next week .= he will play the basketball instead of me.他下周将代替我去打篮球24. be sure 确信 Be sure to do sth 确信，相信，一定会做某事，主语可以是人也可以是物Be sure of that /sth 对某事很确信，有把握，主语是人Eg. It is sure to rain .一定会下雨。25.in +时间，表示将来的时间，一般与将来时态连用。Eg. He will be back in ten minutes.他将十分钟后回来。26. whether / if 是否 区别在于whether 能与or not 连用，而if不可以。27. afraid 担心，害怕 Be afraid of sth 害怕某事 Be afraid of doing sth 害怕做某事Eg, she is afraid of snake.她很怕蛇。She is afraid of going out at night .她晚上怕外出。28. inorder 以的顺序29. happen 发生Sth happen to sb . 是某事发生在某人身上Eg.What happen to you ? 你身上发生了什么.?语法学习反意疑问句：由陈述句（或祈使句、感叹句）加一个简短问句构成的疑问句叫反意疑问句。实质是前面陈述句的反问句。 一般对应规律：前肯后否；前否后肯。即陈述部分为肯定形式，附加问句用否定形式；陈述部分为否定形式，附加问句用肯定形式。如： There are many pyramids in Egypt,arent there?在埃及有许多金字塔，不是吗？ Sally visited the Great Wall last month,didnt she?萨莉上个月参观了长城，不是吗？ He doesnt realize the importance of saving water,does he?他没有意识到节约用水的重要性，是吗？ 特例点拨：Im your good friend,arent I?我是你的好朋友，不是吗？I dont think you can rebuild the house,can you?我认为你不能重修这座房子，是吗？（I dont think主要在说think后的内容，故按从句变化）。陈述部分有nobody,nothing,never,no,few（没几个），little（几乎没有），hardly（几乎不）等否定或半否定词时，仍视为否定句。根据反意疑问句对应规律，疑问部分用肯定形式。如：There is nothing in the room,is there?屋子里什么也没有，是吗？ Maria never surports me,does she? 玛丽亚从未支持过我，是吗？ He had few apples,did he? 他几乎没有苹