2018高考英语大一轮复习Unit4Globalwarming课件

1、基础知识自测,重点词汇讲练,写作句型仿写,基础知识自测,1. _vt. 消费; 消耗; 耗尽; 吃完 _n. 消费者 2. _ n. 结果; 后果; 影响 _ adj. 随之发生的; 作为结果的 _ adv. 所以; 因此; 结果,一、单词拓展 (A)单词派生,consequently,consume,consumer,consequence,consequent,3. _ adj. 平稳的; 持续的; 稳固的 _ adv. 平稳地; 持续地,steadily,steady,4. _ v. 污染 _ n. 污染,pollute,pollution,5. _ v. 增长；生长 _ n. 增长；生

2、长 6. _ v. 教育 _ n.教育工作者 _ n. 教育,growth,grow,education,educate,educator,(B) 灵活运用,1. The price increases were passed on by the firm to the _ (consume). 1. 在冠词后用名词, 指“消费者”, 由句意可知用复数形式。 2. Our educational reform was _ (steady) led onto the correct path. 2. 修饰谓语动词, 用副词。,steadily,consumers,3. A lot of _ wa

3、ter from the chemical works brought the _ into the river. (pollute) 3. 第一空因water是被污染的, 作定语, 故用过去分词; 第二空在冠词后面用名词形式。,polluted,pollution,4. Fertilizer will help the _ (grow) of these tomato plants. 4. 在冠词后用名词形式。 5. As a/an _, he put the _ of art into practice. (educate) 5.两空都是在冠词后用名词, 前者表示“教育工作者”, 后者表示

4、“教育”。,educator,education,growth,二、短语翻译,1. _ 发生; 造成 2. _ 同意; 赞成; 订购 3. _ 大量的 4. _ 上升; 增长; 升起 5. _ 导致,result in,come about,subscribe to,quantities of,go up,6. _ 反对 7. _ 即使 8. _ 继续 9. _ 大体上; 基本上 10. _ 代表,on behalf of,be opposed to,even if,keep on,on the whole,11. _ 忍受；容忍 12. _ 只要 13. _ 等等 14. _ 扫视; 瞥一眼

5、,glance at,put up with,so/as long as,and so on,三、语篇填空,The Earths surface temperature has risen by about one degree Fahrenheit today. There is no doubt that the earth is becoming 1 _ (warm). But how has this come about and 2 _it matter? People have fierce debates about 3 _it is human activity that ha

6、s caused this global warming，4 _ (compare) with most of the natural changes.,warmer,does,whether,compared,Many scientists like Dr. Janice Foster believe that people have caused the increase in the 5 _ (earth) temperature 6 _ burning fossil fuels like coal，natural gas and oil 7 _ _ (produce) energy.

7、Some byproducts of this process are called “greenhouse” gases，the most important one of 8 _ is carbon dioxide. The increased amount of carbon dioxide means that more heat energy 9 _ (trap) in the atmosphere 10 _(cause) the global temperature to go up.,causing,earths,by,to,produce,which,is trapped,四、

8、语段改错,We know that the levels of carbon dioxide has increased greatly over last 100 to 150 years. It was a scientist was called Charles Keeling, who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997.,He found that from these years the carbon dioxide in the

9、 atmosphere went down from around 315 parts to around 370 parts per million. All scientist accept this data.,He also agree that it is the burning of more and more fossil fuels that have resulted in this increase in carbon dioxide. However, the attitude of scientists for this rise is completely diffe

10、rence.,1. has have 因主语levels为复数形式，故用have。 2. 在last前加the 指在“最近多少年里”习惯上说in /over the lastyears，且与完成时连用。 3. 去掉called前的was 过去分词called作后置定语。 4. from between 指代前面的from 1957 to 1997。表示“在期间”，用介词between。 5. down up 根据下文“from around 315 parts to around 370 parts per million”可知应该是上升(go up)，而非下降(go down)。,6. sc

11、ientist scientists “所有的科学家”，肯定不止一个，所以用复数。 7. He They 指代前句的scientists，用复数形式。 8. have has 强调句式，强调主语the burning of more and more fossil fuels，根据主谓一致，与the burning一致应为单数，故改用has。 9. for to/towards 表示“对的态度”，为the attitude to/towards。 10. difference different 作表语，应用形容词形式。,重点词汇讲练,原句 The problem begins when we

12、 add huge quantities of extra carbon dioxide into the atmosphere. 当我们在大气层中增加了大量额外的二氧化碳时, 问题就来了。(B6 P26),1. quantities of =a large quantity of 许多, 大量的,例句 Quantities of flood were pumped into the lake. 大量的洪水被抽进湖里。,注意 a quantity of后既可接复数可数名词，也可接不可数名词。作主语时，如果后接不可数名词，谓语用单数形式; 如果后接复数可数名词，谓语常用复数形式。 quantit

13、ies of后既可接复数可数名词，也可接不可数名词，作主语时，谓语都用复数形式。,运用 用所给词的适当形式填空。 A quantity of baskets _ (be) on sale last night. Quantities of polluted water _ (be) flowing into the sea now.,were,are, A large quantity of beer _ consumed, which caused the fact that quantities of crops _ imported last year. (be),were,was,2.

14、 (原因) result in (结果)引起; 导致; 造成 (结果) result from (原因) 由于而引起,原句 They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. 他们还赞同下述观点, 正是由于越来越多燃烧化石燃料导致了二氧化碳的增加。(B6 P26),例句 His carelessness resulted in the accident. 他的粗心大意导致了这起意外。 同义 bring

15、about, lead to导致,运用 填入一个适当的词。 Their dispute resulted _ war. His illness resulted _ the bad food.,from,in,原句 On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbon dioxide in the air. 在另一方面, 还有一些人, 像科学家乔治汉布利,

16、 反对上面的观点, 他们认为我们不必担心空气中含有高含量的二氧化碳。(B6 P27),3. be opposed to 强烈反对,例句 Public opinion was opposed to the war. 舆论是反对那场战争的。 运用 (1)They were bitterly opposed _ the scheme. (2)They are opposed to _(use) the mild statement.,using,to,原句 I am doing a project on behalf of my school about global warming. 我正代表学校

17、做一项关于全球变暖的课题研究。(B6 P30),4. on behalf of 代表一方; 作为的代言人,例句 The lawyer spoke on behalf of his firm. 律师代表他的公司发言。,运用 填一个恰当的词或完成句子。 我们代表无家可归的人筹集了一些钱。 We collected some money _ _. He had no time to come here, and thus his father would accept the award _ behalf of him.,on,5. put up with 容忍；忍受 例句 I dont know

18、how you put up with their constant quarrelling. 我不知道你是如何忍受他们无休止的争吵的。,put aside 节省, 储蓄, 储存 put away 收起来 put forward 提出建议;把向前拨 put off 延期, 推迟 put out 熄灭, 扑灭 put through 接通电话 put up 提出；推荐；留某人住下,联想,说明 表示“容忍；忍受”的词语还有：stand, tolerate, bear等。,运用 用put短语完成句子。 Im not going to _ their smoking any longer. (2) O

19、ne moment please；Im just trying to _ you _.,through,put up with,put,(3) We are trying to _ some money every month for our vacation. (4) He decided that he would drive back to town instead of _ for the night at the hotel.,putting up,put aside,6. so/as long as 只要 例句 It is OK to leave an electrical app

20、liance on so long as you are using itif not, turn it off！只要你在使用电器设备, 你便可以把它开着。如果不用就把它关掉！,句中so long as(as long as)意为“只要”, 引导条件状语从句。从句中常用一般现在时代替一般将来时。,说明,as good as 与一样好;几乎和一样 as far as 远至；就而言 as well as 和一样好;除之外, 既又 as soon as 一就 as many/much as 多达;和一样多,联想,as long as还可以表示“和一样长”, 可以指时间、长度。,说明,运用 选词填空(

21、as long as/as good as/as well as/as many as/as far as)。 _ Im concerned, it sounds like a great idea. (2) You can borrow my car _ you promise not to drive too fast.,as long as,As far as,(3) _ knowing some Russian, he speaks English very well. (4) _ 220 people were killed in the air crash on October 31,2015. (5) If he finds out that I am lying, I am _ dead.,as g