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(共8张PPT)
Unit 7 Inventions Make Life Better
教师寄语：Creative thinking inspires ideas; ideas inspire change.
Part 4 Grammar
Practice
Production
Summary
Lead-in
Presentation
Find the rules
A:Developments in science and technology make our life better.
B: Developments in science and technology do make our life better.
A:The touch screen technology makes all of these new things so easy to use.
B:It’s the touch screen technology that makes all of these new things so easy to use.
What is the difference
What B said expresses stronger feelings by using auxiliary verb “do” and the sentence pattern “It is ...that...”
Presentation
Lead-in
Emphatic sentence
Practice
Production
Summary
强调句可用来强调句子中的某个特定成分，以表示强烈的感受或某种对比。
1. 助动词 do 及其相应形式可以用来强调谓语动词。（时态只有一般现在时和一般过去时。）
e.g. You do look nice today!
2. it 可用来对句子的某一成分加以强调
结构：It + is/was+ 被强调的部分+ that / who + 其他部分。
作用：强调句用来强调句子的主语，宾语，表语，状语等
e.g. It was yesterday that she got this beautiful skirt.
Lead-in
Presentation
Practice
Production
Summary
Task 1: try to divide sentence element(句子成分)
Task 2:change the sentence forms according to the request.
I met Li Ming at the railway station yesterday.
subject
verb
object
adverbial
adverbial
1.强调主语：It was I that (who) met Li Ming at the railway station yesterday.
2.强调宾语：
3.强调地点状语：
4.强调时间状语：
It was Li Ming that/ who I met at the railway station yesterday.
It was at the railway station that I met Li Ming yesterday.
It was yesterday that I met Li Ming at the railway station.
Production
Summary
Presentation
Lead-in
Practice
判断下列句子是否为强调句
1.It is strange that she didn’t come yesterday.
2.It is Tom that wants to see you.
3.It is a wonder that he is alive.
4.It was for seven hours that they have worked.
5.It is a fact that he stole Jim’s pocket.
强调句判断方法：
删掉It is /was ...that...，句子结构依然完整，则为强调句.
Production
Summary
Presentation
Lead-in
Practice
Choose the proper answers.
1.It was on the playground_________I found the wallet.
A.which B.that C.while D.since
2. It was last summer I saw him.
A.that B.when C. who D.where
3.It is that looking for you.
A. we; am B.I; am C. we; were D.I;are
4.It was not she took off her dark glasses I realized she was a famous film star.
A.when,that B.until,when C.until,that D.when,when
Production
Summary
Presentation
Lead-in
Practice
Choose the proper answers.
1.It was on the playground_________I found the wallet.
A.which B.that C.while D.since
2. It was last summer I saw him.
A.that B.when C. who D.where
3.It is that looking for you.
A. we; am B.I; am C. we; were D.I;are
4.It was not she took off her dark glasses I realized she was a famous film star.
A.when,that B.until,when C.until,that D.when,when
解析：
考察not until…句型的强调句:
It is / was not until......that..... 直到......时候才.......
Summary
Lead-in
Practice
Production
Presentation
Emphasis
助动词表强调：
do/does/did
强调句:
It is /was ......that /who...
强调谓语动词
强调句子的主语、
宾语、状语等

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