Unit 6 Perseverance（ Grammar）课件

课件42张PPT。重庆大学版
高一 (3)
Unit 6Grammar 1. 指代事物、动物、婴儿或未知的人。
Look at the baby. Isn’t it lovely?
看那个小婴儿，它不可爱吗？
—Who is there? 谁在那里？
—It’s only me. 我。it的用法2. 指天气、时间、距离、自然现象、环境等。
It’s very cold today.今天很冷。
It’s twenty miles to the zoo.到公园20英里路。3. 代替不定式、v-ing形式、名词性从
句，作形式主语或形式宾语。
It’s of great help to master a foreign language.
掌握一门外语很有帮助。
I find it quite necessary to make some changes.
我发现有必要做出改变。It’s no good (no use, useless, senseless，dangerous, enjoyable, worthwhile) ＋v.-ing.
It’s no use arguing with him.
同他争论没什么用。
It is well known that China has the largest population in the world.
众所周知，中国在世界上人口最多。4. 用作look, seem, appear, happen等词
的主语。
It seems that he lost his way.
他好像迷路了。
It happened that she was not at home when I called.
我打电话时，碰巧她不在家。5. 表示“喜欢、恨”等心理方面的动
词后面接 it，构成固定结构，这
类动词有enjoy, prefer, love, like,
hate, dislike, appreciate等。I will appreciate it if you can give me a hand.
如果你能帮我一把，我会很感激。
I can't help it if he is always late.
如果他总是迟到，我也没办法。
As someone puts it，practice makes perfect.
像某人所说的那样，熟能生巧。6. 在动词+介词构成的词组如see to, depend on等结构中不能直接接宾语从句，在介词和宾语从句间也须插入无意义代词it. (Depend on it 可单独成句)① See to it that you are not late again.
设法做到你不再迟到。 ②You may depend on it that all the goods will be delivered in time.务必相信所有的货物会及时送达。7. 在下列固定短语和惯用法中it指代某种情形或事实。It is hard work, but it’s worth it in the end.
虽然工作很辛苦，但还是值得(做)的。Sometimes we’re busy and sometimes we’re not.
It all depends. 有时我们很忙，有时则不是。
那要看什么情形了。Look at that fat girl. She should carry too big case.
I love it.
看那个胖女孩。她竟然扛两只大箱子！
真逗/真有趣。8. It用于强调句型，对句子的某一成分加以强调，结构如下：
It is / was + 被强调的部分 + that / who / whom + 原句中的其他部分
It is my word that counts.
我说了算。 (强调主语)
It is me that / whom you should ask.
你应该问的人是我。 （强调宾语）
It is at eleven that the train leaves.
正是在十一点钟火车开走了。
（强调状语）
It was red that we painted the gate.
我们给门漆上的颜色正是红色。
（强调宾语补足语）A________ disappeared as time went on that he was afraid of climbing high mountains.
A. It B. That
C. What D. Which高考链接解析：
句意：随着时间的推移，他对爬山的恐惧感消失了。首先忽略as time went on这一时间状语，这样很容易发现that从句为真正主语，而四个选项中只有it可作形式主语。B2. I like this house with a beautiful
garden in front, but I don’t have
enough money to buy ____.
A. one B. it
C. this D. that【解析】选B。句意为：我喜欢这套带漂亮前院的房子，但是我没有足够的钱去买它。在代词中，one用于泛指某类中的一个；it用于特指，指前面提及的单数个体；this用于指已经提到或已知的人、物、主意等；that用于名词或代词前，“那个”，指人或事物，尤指在空间或时间上较远的物等。3. I would appreciate ___, to be frank, if goods could be delivered as soon as possible.
A. you B. this
C. it D. myselfC【解析】选C。考查代词。此处it作形式宾语，代替后面的“if goods could be delivered as soon as possible”. to be frank为插入语。4. —There is still a copy of the book in the library.
Will you go and borrow ____?
—No. I’d rather buy ____ in the bookstore.
A. it; one B. one; one C. one; it D. it; itA选A。考查代词。第一空所填词代指上文的a copy of the book.指同一物用it;第二空指“同类的一个(同类不同物)”用one。5. It is almost five years ___ we saw each other last time.
A. before B. since C. after D. when选B。“It is+一般时间+since-clause”表示从事情发生到现在多长时间了。6. ___ is our belief that improvements in health care will lead to a stronger. more prosperous economy.
A. As B. That C. This D. It 选D。本题考查it作形式主语，真正的主语是that从句。7. As the busiest woman in Norton. she made ___ her duty to look after all the other people’s affairs in that town.
A. this B. that C. one D. it选D。本题考查it作形式宾语，真正的宾语是“to look after all the other people’s affairs in that town”。8. I just wonder ____ that makes him so excited.
A. why it does B. what he does
C. how it is D. what it is 选D。It is …that…是一个强调句型。对what进行强调，what是宾语从句的主语。9. If I can help ___ I don’t like working late into night.
A. so B. that C. it D. them选C。 If I can help it意为“如果我有办法。” 表示有办法做某事或有办法控制某个局面。10. —Do you like ____ here?
—Oh, yes. The air, the weather, the way of life.
Everything is so nice.
A. this B. these C. that D. it 选D。 it指代气候，空气等模糊环境。 11. The doctor thought ______ would be
good for you to have a holiday.
A. this????B. that????C. one????D. it
选D。本题考查it作形式宾语，it在这里代指后面的真正宾语to have a holiday。12. Everyone knows that ______ is dangerous to play with fire, but ______ is difficult is to prevent children from playing with fire.
A. it, it????????????????? B. what, what
C. it, what??????????????D. what, itD【分析】选D。很容易误选B，认为两空均考查形式主语。第一空填形式主语，真正的主语是其后的不定式 to play with fire。第二空填 what，what is difficult 是主语从句，注意 what is difficult 后的谓语动词 is。1. The Parkers bought a new house but _____ will need a lot of work before they can move in.
A. they B. it C. one D. which 练一练2. Tom’s mother kept telling him that
he should work harder, but _____
didn’t help.
A. he B. which C. she D. it3. The weather turned out to be very good. _____ was more than we could expect.
A. What B. Which C. That D. It4. I don’t mind her criticizing me, but _____ is how she does it that I object to.
A. it B. that
C. this D. which5. The Foreign Minister said, “_____ our hope that the two sides will work towards peace.”
A. This is B. There is
C. That is D. It isThank you!