2013届高考一轮考点复习提高课件：选修6 Unit4 Global warming(新人教版).ppt

1、Unit 4 Global warming 课堂考点 考点1. So how has this come about and does it matter? (Page 26) How did it come about that he knew where we were? 他是怎么知道我们在什么地方的呢？ 用法归纳 come about发生；造成 come across偶遇；碰到 come up with想出(主意等) take place发生 break out突然发生 对应训练 (1)How did it _(发生)?,come about,(2)Sometimes it is har

2、d to tell how a quarrel _(发生). (3)How did this situation happen? You are to blame for it. (替换) _ (4)没人知道这种变化是怎样发生的。(汉译英) _ 考点2. The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere. (Page 26) The squirrel hides large quantities of nuts inside trees. 松鼠把大量的坚果贮藏在树

3、里面。 用法归纳 quantity n.量；数量 quantities of大量的,Nobody knows how the change came about.,comes about,come about,in large quantities大量地 quality n.质量 对应训练 (1)Price was decided _(由数量). (2)Mathematics is the science of pure _(数量). (3) _(大量食品)were on the table. (4)我重质量胜过重数量。(汉译英；quality) _ 考点3. It means that mo

4、re heat energy tends to be trapped in the atmosphere causing the global temperature to go up. (Page 26) Snow tends to cool the air above it and stops the Earth from overheating. 雪具有冷却上方空气，以及让地球停止过热的倾向。,I prefer quality to quantity.,by quantity,quantity,Quantities of food,用法归纳 tend vi.趋向；易于；照顾 tend v

5、t.照顾；护理 tend to do某种倾向；有的趋势 对应训练 (1)People under stress _(容易)to express their full range of potential. (2)He _(往往)to throw the ball too high. (3)He _(照顾)the child day and night throughout his illness. (4)最近,物价有上涨的趋势。(汉译英) _ 考点4. They also agree that it is the burning of more and more fossil fuels th

6、at has resulted in this increase in carbon dioxide. (Page 26),Prices tend to go up recently.,tend,tends,tended,My efforts resulted in nothing. 我的努力毫无结果。 用法归纳 result in导致 result from由而造成 lead to导致 对应训练 (1)Acting before thinking always_(导致) failure. (2)The accident _(造成)three people being killed. (3)T

7、he accident _(造成)his death. (4)这场意外事故造成两人死亡。(汉译英;death) _,The accident resulted in two death,results in,resulted in,resulted in,考点5. On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the a

8、ir. (Page 27) Many people are opposed to testing on animals while many others are for it. 许多人对动物实验持反对态度，而其他一些人却对此表示认同。 用法归纳 oppose vt. 反对；反抗；与(某人)较量 opposed adj.反对的；对立的 be opposed to反对 be against反对 object to反对,对应训练 (1)People there _(反对)their government. (2)My mother is _(反对)to the new plan. (3)Many

9、people are opposed to the plan of building the motorway.(替换) _ (4)国家是反对战争的。(汉译英) _ 考点6. It will make plants grow quicker; crops will produce more it will encourage a greater range of animalsall of which will make life for human beings better. (Page 27) These factories cause a large range of air poll

10、ution. 这些工厂造成了很大范围的空气污染。,The country is opposed to war.,opposed,opposed,oppose/are against/object to,用法归纳 range n.种类；范围；射程 range from.to范围在之间 range vt.排列；整理 对应训练 (1)Several cars are available within this price _ (范围). (2)There is a wide _(变动范围)of temperature in the north of China. (3)You have to ran

11、ge the goods neatly in the shop window. (替换) _ (4) _ (价格范围)from 5 dollars to 10 dollars.,Prices ranged,range,range,arrange,考点7. Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries. (Page 27) Even if peopl

12、e love each other, they fight sometimes. 即便人们很恩爱，他们有时也会争吵。 用法归纳 even if=even though即使(引导让步状语从句) as if=as though似乎(引导方式状语从句) if only要是就好了(引导虚拟语气) only if只是在的时候 对应训练 (1)We must consider other factors _(即使)what you have said is right.,even if,(2)Most houses have a garden, _ _(即使非常小巧),and the garden is

13、usually lovely. (3)即使下雨我们也要去。(汉译英) _ (4)They couldnt, even if they would, get out of trouble by themselves.(英译汉) _ 考点8. The greenhouse effect gives the earths surface the average temperature of 15.(Page 29) The average temperature this spring is below normal. 今春平均气温比正常偏低。 用法归纳 average adj.平均的 on ave

14、rage平均，一般的,即使他们想摆脱，也无法独立摆脱困难。,even if it is a very,small one,Well go even if it rains.,average n.平均数;平均 average vt.平均为 对应训练 (1)What is the _ (平均降雨量)for August in your country? (2)People on _ (一般收入)are finding it hard to manage at the moment. (3)The _ (平均年龄)of the boys is fifteen. (4)The _(平均)of 4,8,

15、and 60 is 24. 考点9. We do not have to put up with pollution. (Page 30) I cannot put up with my noisy roommates. 我不能容忍我那吵闹的室友们。 用法归纳 put up with忍受;容忍,average,average rainfall,average incomes,average age,suffer from忍受 bear vt.忍受 stand vt.忍受 live with忍受 对应训练 (1)I cant _(容忍)your bad temper any more. (2)T

16、hat woman, as a housewife, has a lot to _ (忍受). (3)Noise is coming to the point where we _ _(不能忍受). (4)我就是无法容忍他的傲慢。(汉译英;pride) _ 考点10. It is OK to leave an electrical appliance on so long as you are using itif not, turn it off! (Page 30),I just cant put up with his pride.,put up with,put up with,cant put up,with it,It matters little who does it so long as it is done. 只要事情做了，谁做都行。 用法归纳 so long as=as long as只要(引导条件状语从句) if如果(语气不如as long as强) unless(相当于if not)除非;如果不 对应训练 (1)We can arrange everything_(只要)we have