高二英语选修七_Unit4_重点句型讲与练

1、1 / 4unit4 重点句型讲与练句型突破a. 习惯句式1. it was wonderful to hear from you. 收到你的信真是好极了。it is important for you to learn english well. 学好英语对你很重要。it is impolite for him to say so. 他这样说是不礼貌的。规律提示it is/was+ adj. +(for sb.)+to do是一固定句型 , 表示 “ 对某人来说做 是的” 。it 是形式主语 , to do 不定式作真正的主语。2. when i reach the school groun

2、ds there are lots of “good mornings ” for me from the boys, many of whom have walked a long way, sometimes up to two hours, to get to the school. 当我到学校时 , 孩子们都对我说： “ 早上好 ! ”, 这些孩子中许多人都是走了相当长的路, 有时多达两小时赶来学校的。（1）recently i bought an ancient chinese vase, the price of which was very reasonable. 最近我买了一个

3、古老的中国花瓶, 它的价格很合理。（2） therere sixty students in my class, 80% of whom are from the mountain villages. 我的班里有 60 位学生 , 80%来自山村。规律提示以上两句中 the price of which was very reasonable 和 80%of whom are from the mountain villages都是定语从句 , 分别修饰 an ancient chinese vase 和 students 。which 和 whom 引导非限制性定语从句。3. in fact

4、 , i wonder whether im making any difference to these boys lives at all. 事实上 , 我想知道我对这些孩子的生活是否起作用。（1）i wonder if you could post this letter for me. 2 / 4不知可不可以请你帮我把这封信寄出去。（2）i was wondering if you could let me stay for a few days. 我在想 , 不知你能不能让我住几天. 规律提示当你在心里向自己发问时, 用 wonder why/who/whether. . . 等句式

5、。i wonder if. . . 可用来使所提要求变得温和, i was wondering if. . . 用于较为重大或难办的要求。b. 长句难句1. sometimes i wonder how relevant chemistry is to the kids, most of whom will be going back to their villages after year 8. 有时我就想化学与这些孩子有什么关系呢, 他们中的大多数 8 岁以后就将回到他们的村子里去。most of whom will. . . 是定语从句 , 修饰先行词 the kids。2. we wa

6、lked for two and a half hours to get there first up a mountain to a ridge from where we had fantastic views and then down a steep slope to the valley below 我们用了两个半小时走到那里先是爬上了一座山 , 在那儿我们看到了极好的景色 , 然后顺着陡峭的斜坡下到下面的山谷。破折号起解释说明的作用。first. . . and then. . . 表示时间的先后顺序。from where we had. . . 是定语从句 , 修饰先行词 a r

7、idge。3. just 20%more produce will mean the difference between sickness and health, between families going hungry and families providing for themselves. 仅仅把产量提高 20%就意味着患病与健康 , 饥饿与自足之间的差异。c 即时练习(1)come and see me whenever _. a. you are convenientb. you will be convenientc. it is convenient to youd. it

8、 will be convenient to you答案： c (2)i find _ necessary _ us to remember many idioms. 3 / 4a. it; of b. it; forc. this; for d. that; of答案： b (3)he studies hard at his work, _ that he has passed the examination. a. wonder b. no wonderc. if wonder d. wonder if答案： b (4)the english play _ my students acte

9、d at the new years party was a great success. a. for which b. at whichc. in which d. on which答案： c (5)the journey around the world took the old sailor nine months, _ the sailing time was 226 days. a. of whichb. during whichc. from whichd. for which答案： a (6)american women usually identify their best

10、friends as someone _ they can talk frequently. a. whob. asc. about which4 / 4d. with whom答案： d (7)the factory produces half a million pairs of shoes every year, 80% _are sold abroad. a. of which b. which ofc. of them d. of that答案： a (8)a fast food restaurant is the place _, just as the name suggests, eating is performed quickly. a. which b. wherec. there d. what答案： b (9)york, _ last year , is a nice old city. a. that i visitedb. which i visitedc. where i visitedd. in which i visited答