人教版高中英语选修六Book6Unit4Grammar(“it”的用法(二)).docx
高中英语 Unit 4 Global warming Grammar 教案 新人教版选修6
Unit 4 GrammarTeaching materialNSEFC Book 6 -- Unit 4Teaching aimsEnable the students to master the usage of the form it is/was... that..... Teaching important pointsHow to enable the students to know the structure and the usage of the form it is/was... that....Teaching difficult pointsHow to help the students to master the usage of the form it is/was... that.... Teaching aidstape recorder, slidesTeaching proceduresStep1 RevisionT: First let's check answers. (slide show)Discovering useful words and expressions. (P28)1. Charles Keeling collected ______on the carbon dioxide content in the atmosphere over a forty-year period. He found that the amount of carbon dioxide _______ increasing during that time.2. Although we are burning coal in huge _________ every year, we won't ________ of it for centuries.3. If the amount of greenhouse gases continues to _______ we could be facing a global __________.4. Many scientists believe that global warming has __________ through the burning of fossil fuels. They do not think that ignoring the issue is worth the ____.5. ______ describes weather conditions over a period of years in a particular place.6. The _____________ of a rising sea level would be widespread flooding.7. The use of energy in Susanna's country is low ______________ the use of energy in the USA.8. The warming of the earth is a _____________ that causes great concern.9. The ________ shows temperature changes during the 20th century.10. One hectare of forest can absorb 23 tons of carbon dioxide ____ year. Keys：1.data kept on 2. quantities; run out 3. build up; catastrophe4. come about; risk5. Climate6. consequencepared to8.phenomenon9. graph 10. perAnswer keys for Ex.2 on Page 28:The first graph shows the global _______________ between ________ and _________The temperature __________ and decreased over this period but on the whole it _________ by around _________ and its highest in 2000. There was a steady _________________ in the temperature during the twenty years after 1980. We can see from the graph that the earth has become ___________ since early last century.The second graph shows the amount of ______________in the atmosphere from ________ to _______ .The carbon dioxide __________ steadily over this forty-year period. Itwent up from 315 to 370 parts ___________million.Keys：Temperature；1860；2000；increased；rose；1910；increase/rise；warmercarbon dioxide；1957；1997；increase/ went up；perStep2 Grammar强调句结构常考的强调句结构是it 引导的句子。
人教版英语选修6第四单元grammar课件
D. that; that
11.It was in this village ___ I was
bought up.
A. where B. that
C. on which D. which
12. It was this village ___ I was bought
up.
A. where
B. that
7. What on earth do you want me to say? _W__h_a_t_is_it__th_a_t___ you want me to say? 8. I didn’t receive the manager’s reply until nearly a month later. __It_w__a_s n_o_t_u_n_t_i_l __ nearly a month later _t_h_a_t__ I received the manager’s reply.
人教版英语选修6第四单元grammar课件
强调句型，你掌握了吗 ？
Explanation
• 由it引导的强调句结构： • It is (was)+被强调部分+that /who(主
语是人)/whom(宾语是人) + 句子其 他部分 • 注意：此结构强调的成分仅限于主 语，宾语和状语。
如： • 原句：My father did the experiment
••原原句句：：MMyyfafaththeerrddididththeeeexxppeerrimimeennttinin ththeelalabbyyeestseterrddaayyeevveenniningg．．
••强强调调地地点点：：It was in the lab that my •faItthwearsdiindtthheeleaxbptehraimt menyt fyaetshteerrddaidy the eevxepneinrgim．ent yesterday evening．
人教版高二英语选修六Unit 4 Global warming Grammar课件
【归纳】 一、强调句与主语从句句型的区别： 从形式上都有：It is…that，所以根据就 是把强调结构标志去掉后，原句在结构意 义上不成立则是__主__语__从__句___, 结构与意义 仍然成立的则是_强__调__句_______。
It was the headmaster _w_h_o_/_t_h_a_t stood outside. We were confused. He said to me. “I find __i_t__ unbelievable that you are late for class again”. It took me a few seconds __t_o_u_n__d_e_rs_t_a_n_d__ (understand) what he said. It was no use ___a_r_g_u_i_n_g__ (argue) with him. I smiled, “Sorry, headmaster, you mad e a mistake , again.” He went away disappointedly. Our class burst into laughter. Actually I hate _____iwt hen someone interrupts my class.
Hale Waihona Puke 3.【语境展示】 a. Why is it that everyone thinks he is selfish? b. What was it that they fought for? 【归纳】 强调句型的特殊疑问句形式是： _疑__问__词___ + is / was it that +句子的其 余部分。
人教版高中英语选修六Unit4 Grammar课件
him the news. A. can be B. should be C. might be D. must be
4.关于被强调成分: ❖能够被强调的句子成分通常为主语或宾语（名词、
（2）对“not...until...”结构的强调，要用“It is/was not until...that...”这一固定句型。由于否定 已经前移，that后只能用肯定形式。同时要注意不 能使用倒装语序
It was __C____ back home after the experiment. A. not until midnight did he go B. until midnight that he didn’t go C. not until midnight that he went D. until midnight when he didn’t go
It was the things and people that they remembered that they were talking about． （4）当强调时间或地点或原因或方式状语时，用that, 不能用when / where/why/how
(尤其是当这些状语为介词短语时) （5）如果被强调的成分有同位语，同位语也应提前。
注意： （1）强调部分为介词短语时：
①应特别注意能引起误解的干扰选项 ②表示时间或地点时，应注意与定语从句的区别
1. It was through Jack __D___ Mary got to know Bob . A. who B. whom C. how D. that 2. It was __C__ great care that they did the job. A. for B. about C. with D. in 3. It was on October 1st 1949 ___D__ new China was founded. A. which B. when C. as D. that 4. Was it in this palace ___A__ the last emperor died? A. that B. in which C. in where D. which
高中英语UNIT4GLOBALWARMINGSECTIONⅢGRAMMARIT的用法(2)课件新人教
2．特殊疑问句：特殊疑问词＋is/was＋it＋that＋其他成分？ Where was it that you met Tom yesterday? 昨天你是在哪儿遇见汤姆的？ Who was it that came up with the bright idea? 究竟是谁提出了这个好主意？ [点津] 强调句型也可用于宾语从句中，但注意语序要用陈述 句语序：动词＋特殊疑问词＋it is/was＋that＋其他。 I wonder why it was that he gave up his well-paid job. 我不知道他为什么放弃他的高薪工作。
[点津](1)强调句可以强调主语、宾语和状语，但不能强调 谓语，强调谓语动词要用“do/does/did＋动词原形”。
Do be careful when you cross the street. 过马路时，务必要小心啊！ (2)当被强调部分是人时，可用 that/who，其他情况都用 that。 (3)强调时间、地点、原因时不能用 when, where, why， 只能用 that。
→ He did finish his homework yesterday.
二、强调句型的疑问形式 1．一般疑问句：Is/Was＋it＋被强调部分＋that/who＋其他成分？
Was it Li Ping that/who he met yesterday? 他昨天遇到的人是李平吗？ Was it last year that you got the degree? 你是在去年获得学位的吗？
即时演练 4 选词填空 (when, before, since, that)
①It was 20 years ago that the two friends met in Vietnam. ②It will be 20 years before they meet in Vietnam. ③It is 20 years since he came to live here. ④It was 20 years that he spent in writing this novel. ⑤It was midnight when he came back home. ⑥It was in 1949 when our country was founded that he left his
演示文稿人教版英语选修6第四单元grammar课件
• 原句：My father did the experiment in the
lab yesterday evening． • 强调宾语：
• It was the experiment that my father did in the lab yesterday evening．
→ It was not until she took off her dark glasses that I realized she was a famous film star.
第十二页，共23页。
每空填一词, 使该句与所给句子的意思相同。
1. We depend on energy to do many things.
It was because she was ill that they didn’t ask her to do the job.
→Because she was ill, they didn’t ask her to do
job.
It was in the street that I met her father. →In the street I met her father.
（优质）人教版英语选修6第四 单元grammar课件PPT课件
第一页，共23页。
强调句型，你掌握了吗？
第二页，共23页。
Explanation
• 由it引导的强调句结构： • It is (was)+被强调部分+that /who(主
语是人)/whom(宾语是人) + 句子其他
部分
• 注意：此结构强调的成分仅限于主 语，宾语和状语。
••强强调调地地点点：：It was in the lab that my father •dIitd wthaes eixnptehreimlaebntthyaesttmerydafaytehveerndinigd．the
人教版高中英语选修6 Unit4 Grammar名师教学设计
文化目标：
通过谈论有关全球变暖的话题，树立“节约能源、保护环境”的主人翁意识，培养环保意识。
教
学
重
难
点
教学重点：
1.强调句的用法；
2.强调句和定语从句及名词性从句的区别。
教学难点：
1.培养学生自主总结归纳语法规则的能力；
2.教会学生在语境中正确使用强调句表达自己的观点。
S: It is human activity that has caused this global warming.
1.通过翻译、划分句子成分及句型转换引起学生学习强调句的兴趣和对其结构和作用的思考。
1.学生是否能通过教师自主总结归纳强调句的结构和作用。
Dd presentation(引入和呈现)
e.g. Human activity has caused this global warming.
主谓宾
we know the emphatic “it” is used when the writer wants to put extra emphasis on or give more importance to a certain part of the sentence. The sentence is in this form: “ It is/was…that/who…”. The extra emphasis is given to the noun or phrase that immediately follows “ It is/was…”. So please change the sentence into an emphatic sentence if I want to emphasis the subject.
2020-2021学年高二英语人教版选修6教师用书：Unit 4 Section Ⅲ Gramma
姓名，年级：时间：it 的用法(Ⅱ）语境自主领悟先观察原句后自主感悟1．There is no doubt that theearth is becoming warmer andthat it is human activity thathas caused this global warmingrather than a random but naturalphenomenon．2．It was a scientist calledCharles Keeling who madeaccurate measurements of theamount of carbon dioxide in theatmosphere from 1957 to 1997．3．They also agree that it is theburning of more and more fossilfuels that has resulted in thisincrease in carbon dioxide．1．例1中的it is．．．that．．．为强调句型，在这个句型中，it没有意义，只是引出被强调的成分。
此处强调的是同位语从句的主语human activity。
2．例2中的it was．．．who．．．为强调句型，此处强调的是主句的主语 a scientist.被强调的成分是表示人的词，故也可用who。
3．例3中的it is．．．that．．．为强调句型，此处强调的是宾语从句的主语the burning of more andmore fossil fuels。
一、强调句型的基本结构强调句型的基本结构为：it is/was＋被强调部分＋that/who＋其他成分1．此结构中it 没有意义，只是引出被强调部分。
2．此强调句型只能强调主语、宾语、状语，不能强调谓语.3．被强调的成分是表示人的词时用who/that，而被强调成分是其他时(事物、时间、地点等）只能用that。
高中英语人教版选修六 Unit4 Grammar
三、 句子谓语 的强原形
e.g 我的确相信他是老实人。 I do believe that he is an honest man.
他们昨天的确去看过你，但没见到你。 They did go to see you yesterday, but failed to meet you.
10. It was the training __t_h_a_t he had as a
young man _w__h_e_n_ made him such a
famous writer.
Answer key for exercise 2 on page 29:
1. It is scientists who warned that greenhouse gases would warm the earth by trapping heat energy in the atmosphere.
Because she was ill, they didn’t ask her to do the job.
→It was because she was ill that they didn’t ask her to
do the job. （强调原因）
4. 他为什么不能回答这个问题？
Why was it that he couldn’t answer the question.
10. It is outer space that might provide us with new energy sources in the future.
8. It is future climate changes and their effects on our environment that scientists want to find out about.
高二英语人教版选修六 unit4 Grammar in emphasis( 强调句课件)
It is I that need your help. It is he that needs your help.
问题探究:红色部分的区别是如何产生的?说明 什么?
例．It was not luck but difficulties that _B____ him succeed.
A. makes
It was he who/that met an old friend in the park yesterday. (强调主语)
It was an old friend that/who he met in the park yesterday. (强调宾语)
It was in the park that he met an old friend yesterday. (强调地点状语)
请翻译:因为他处境困难玛丽才尽力帮助他。
Mary tried to help him because he was in trouble.
It was b-e-c--a-u--s-e---h-e---w--a--s--i-n---t-r-o--u--b-l-e- that Mary tried to help him.
it指时间
It was at 7 o’clock that he came back. 他是7点钟回来的
强调句，强调at 7 o’clock
Checking points for Emphasis
结构 It+be+被强调部分+that(who)剩余部分 判断方法 去掉It+be…that(who)…剩下的部分可以组成一个 完整的句子 特殊句型
1. (Shanghai 2004) Why! I have made all things clear. _A______ you want me to say? A.What is it that B. What it is that C. How is it that D. How it is that
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高中英语学习材料
***鼎尚图文理制作***
GRAMMAR
“it”的用法（二）
上一单元，我们复习了it作代词的基本用法，并学习了it作形式主语、形式宾语的用法。
本单元我们主要学习it在强调句型中的用法。
【语境展示】观察下面几组句子中it的用法，然后加以总结。
1. a. It was cholera that killed him.
b. It was Iris that / who found him there.
c. It’s Lawrence that / who /whom you should be talking to.
d. It was three weeks later that he heard the news.
e. It was in New Zealand that Elizabeth first met Mr. Cronje.
2. a. Was it in this year that the war broke out?
b. Is it Tracy that / who / whom you are looking for?
3. a. Why is it that everyone thinks he is selfish?
b. What was it that they fought for?
4. a. It was because I wanted to buy a dictionary that I went to town yesterday.
b. It is what he said just now that makes me angry.
5. a. It must be your mother that / who / whom you are thinking of.
b. It might be my two sisters that / who know her best.
6. a. It is not until the end of the year that the traffic laws will take effect.
b. It was not until he was thirty that he started to paint.
【自我归纳】
1. it用在强调结构中，可以对句子中除谓语动词以外的成分加以强调。
强调句型的基本结构是It is / was +被强调部分+ that / who / whom +句子的其余部分, 被强调部分指人时，用who（强调宾语也可用whom）或that，指事物时用________（第1组例句）。
2. 强调句型的一般疑问句形式是：Is / Was it +被强调部分+ that / who / whom +句子的其余部分（第2组例句）。
3. 强调句型的特殊疑问句形式是：________+ is / was it that +句子的其余部分（第3组例句）。
4. 强调句型也可强调状语从句、名词性从句等（如第4组例句）。
5. 在强调结构中，be前可使用表示推测的情态动词（如第5组例句）。
6. not ... until 句型的强调句的形式是：It is / was not until +被强调部分+ that +句子的其余部分（第6组例句）。
【即学即练】
I. 将下面句子改写为强调句（对画线部分内容进行强调）。
1. He bought a new coat for me.
____________________________________________________________
2. The Prime Minister is visiting Japan at the moment.
____________________________________________________________
3. The first attack started just after midnight.
____________________________________________________________
4. Wendy had hidden the box under her bed.
____________________________________________________________
5. The telephone rang when she was about to go to bed.
____________________________________________________________
6. I did not realize what had happened until the next day.
____________________________________________________________
II. 根据提示改写下面句子。
1. It was the price that he was surprised at. （改写为一般疑问句）
____________________________________________________________
2. It is Mary who has won first place. （改写为一般疑问句）
____________________________________________________________
3. It was in Shanghai that I first met Philip. （对画线部分提问）
____________________________________________________________
4. It is Tom who has painted the windows green. （对画线部分提问）
____________________________________________________________
5. A professor from Peking University gave us a speech yesterday. （对画线部分进行强调）
____________________________________________________________
6. The tourists were rescued with the help of the local guide. （对画线部分进行强调）
____________________________________________________________
7. It was in front of the post office that the traffic accident happened. （变为一般疑问句）
____________________________________________________________
8. Mary didn’t mention her own plan until near the end of the letter.（对not ... until ...进行强调）____________________________________________________________
参考答案：
【自我归纳】that；疑问词
【即学即练】
I.
1. It was a new coat that he bought for me.
2. It is the Prime Minister that / who is visiting Japan at the moment.
3. It was just after midnight that the first attack started.
4. It was under her bed that Wendy had hidden the box.
5. It was when she was about to go to bed that the telephone rang.
6. It was not until the next day that I realized what had happened.
II.
1. Was it the price that he was surprised at?
2. Is it Mary who / that has won first place?
3. Where was it that you first met Philip?
4. Who is it that has painted the windows green?
5. It was a professor from Peking University that / who gave us a speech yesterday.
6. It was with the help of the local guide that the tourists were rescued.
7. Was it in front of the post office that the traffic accident happened?
8. It was not until near the end of the letter that Mary mentioned her own plan.。