高考英语一轮总复习课件：必修1 M5 A LESSON IN A LAB（外研版山西专用）.ppt

1、A Lesson in a Lab必修 111.It is hard to think of a world without metals.很难想象一个没有金属的世界。2.Here is a table with the metals that react most at the top,and the metals that react least at the bottom.下面表格中的金属反应最强的排在上面,反应最弱的排在下面。重点句型23.Below is a description of a simple scientific experiment.It shows us how i

2、ron reacts with air and with water.下面是对一个简单科学实验的描述,它向我们演示了铁是如何跟空气和水反应的。重点句型34.Our chemistry teacher,Mr Longford,takes us to public science lectures about four times a term,and these are always very interesting,as the lecturers are people who have made real discoveries in their area of science.我们的化学老

3、师朗福德先生大约每学期带我们去听四次大众科学讲座,讲座总是非常有趣,因为作讲座的人都是在各自的科研领域里有真正发现的人。重点句型4Our chemistry teacher,Mr Longford,takes us to public science lectures about four times a term,and these are always very interesting,as the lecturers are people who have made real discoveries in their area of science.我们的化学老师朗福德先生大约每学期带我

4、们去听四次大众科学讲座,讲座总是非常有趣,因为作讲座的人都是在各自的科研领域里有真正发现的人。句型探究5本句是由and连接的并列句,后一个分句中含有由as引导的原因状语从句。原因状语从句中又含有who引导的非限制性定语从句,people为定语从句的先行词。(1)as conj.“因为”，引导原因状语从句,表示“双方已知的原因”,语气比since弱,较为正式。As it is raining,youd better take a taxi.既然在下雨,你最好乘出租车。I went to bed early,as I was exhausted.我睡得早,因为我筋疲力尽了。句型探究6“当的时候”,

5、引导时间状语从句,表示“一边,一边”、“随着”。“No,I wont.Ill be fine,”said Zhou Kai,as he opened the door.(必修2Module 1)“不,我不会感冒的。我会很好的。”周凯一边开门一边说。As time went on/by,she became more and more worried.随着时间的流逝,她变得越来越焦虑。句型探究7引导让步状语从句，此时句子用倒装语序。Rich as he is,he never spends a cent on clothes.虽然他很富有,但他从不花一分钱在衣服上。Child as he is,

6、he knows a lot.尽管他是个孩子,但懂很多事情。句型探究8引导方式状语从句,意为“如,像；按照的方式”。I want you to tell my friend your very interesting experience exactly as you have told it to me.我想让你像给我讲述的那样,给我的朋友讲一讲你那段极其有趣的经历。Remember,you must do everything as I do.记住,你必须按照我做的那样做。句型探究9引导比较状语从句,用于“asas或not so/asas”中,前一个as是副词,后一个as是连词,意为“如/

7、不如一样”。I dont speak English so/as well as he does.我英语讲得不如他好。句型探究10(2)who have made real discoveries in their area of science为定语从句,who在定语从句中作主语,指代people,并且who不可用that代替。What was the name of the man who lent you the money.借钱给你的那人叫什么名字？(定语从句修饰先行词the man)句型探究11注意：who引导的特殊疑问句,为了避免重复,定语从句的引导词不能用who而要用that。Who is the student that won the gold medal?那个获金牌的学生是谁？句型探究12