人教英語選修六高二 unit 語法 Grammar— it的用法

1、Section_Grammar it的用法(1)語法圖解探究發(fā)現It is a beautiful day here and I am sitting under the big tree at the end of the garden.Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.It is never too late to mend.It is no use talking to them.It is said

2、that he stole the money.I think it difficult to learn English well. We make it clear that speaking to the teacher in that way is not polite. I dont like it when people talk with the mouth full of food.我的發(fā)現(1)句it表示天氣，句第一個it代替to_give_it_up作形式賓語；第二個it代替句中所說的“吸煙”的事。(2)在句中it用作形式主語，其中句用在“It is形容詞(for/ofsb

3、.)動詞不定式(短語)”中，it指代動詞不定式(短語)；句用在“It isno use/good動名詞(短語)”中，it指代動名詞(短語)；句用在“It issaid/believed/reportedthat從句”中，it指代that從句。(3)在句中it用作形式賓語，其中句用在“動詞it形容詞動詞不定式(短語)”中，it指代動詞不定式(短語)，句用在“動詞it形容詞that從句”中，指代that從句；句it用在某些特殊的句式中，指代when從句。一、it用作人稱代詞和非人稱代詞1用作人稱代詞(1)it用來指代前面的名詞或前面提到過的事。My friend offered me a beau

4、tiful gift yesterday, and I like it very much.我朋友昨天給了我一件漂亮的禮物，我非常喜歡。(2)指代性別不明的child或baby。His sister has given a birth to a baby recently and it is very beautiful.他姐姐最近生了個孩子，很漂亮。(3)指代未出場的身份不明確的人。Who is waiting for you at the bus stop?I have no idea. It may be my brother.誰在車站等著你？不知道，可能是我哥哥。(4)替代前文中的th

5、is, that。This is your plan? Will you hand it in?這是你的計劃？你要交上去嗎？2用作非人稱代詞it用作無人稱的主語，不指物，而表示時間、天氣、氣候、季節(jié)、距離等自然現象，或指事物的狀態(tài)。It is a fine day today, isnt it?今天是個好天氣，對吧？It is five kilometers to the town from the village.從農村到城鎮(zhèn)有10里路。Its ten oclock. 十點鐘了。 即時演練1匹配下面it的用法A指代前面的名詞B指代性別不明的child或babyC指代未出場的身份不明確的人D時

6、間E距離Whos that at the door?It is the milkman. _C_Qingdao is a beautiful city, isnt it? _A_The baby is crying. It might be hungry. _B_What a long way it is from Beijing to London! _E_It was nearly midnight when she came back. _D_二、it用作形式主語it常代替由不定式、動詞的ing形式或從句表示的真正主語，作形式主語，而將真正的主語移至句子的后面。1代替不定式短語作形式主語

7、It is impossible to get there by boat.坐船不可能到那里。Its very kind of you to help me.你幫助我真好。2代替動名詞短語作形式主語 常用于以下結構中：Its no use/no good/no fun/useless/a waste of time doing sth.做某事沒有用/沒有好處/沒有意思/沒有用/浪費時間。It is no use giving him some advice.It is useless giving him some advice.給他提建議沒用。3代替主語從句作形式主語It is necess

8、ary that the work should be done well.這項工作應該被完美完成是必須的。Its a pity that I didnt think of it earlier.我沒有早一點這么想真是遺憾。4注意以下固定句型It seems(ed)/appears(ed) that .似乎It (so) happened that . 碰巧It turns(ed) out that . 結果是It occurred to sb. that . 某人突然想起It is said/reported/believed/hoped/wellknown/suggested . that

9、 .據說/據報道/大家都相信/人人都希望/大家都知道/有人建議It so happened that the tickets were sold out.碰巧票都賣光了。It occurred to her that she might adopt a homeless child.她突然想到她可以收養(yǎng)一個無家可歸的孩子。It turns out that the situation is quite serious.結果表明情況很嚴峻。即時演練2補全句子(2015四川高考滿分作文)I badly need to improve my oral English, so it_is_great_

10、for_me_to_find a native speaker to learn from.我急需提高我的英語口語，因此對我來說找到一個可以向他學習的當地人真是太好了。(2014重慶高考滿分作文)It_is_true_that a smartphone plays an important role in our daily life.真的，智能手機在我們日常生活中扮演重要的角色。It_is_no_use_trying to solve the problem by force. Peace talks are the only solution.試圖用武力解決問題是沒用的，和談才是唯一的辦法

11、。It_was_said_that the typhoon had caused a lot of damage. 據說臺風已造成了很多的破壞。 三、it用作形式賓語it常可代替不定式(短語)、動名詞(短語)或從句在句子中作形式賓語，而將真正的賓語放在句子后面，it作形式賓語常用于以下幾種情況：1動詞it形容詞/名詞(for/of)to do/從句They considered it important to have the work done on time. 他們認為按時完成這項工作很重要。We make it a rule to visit the old every weekend.

12、我們規(guī)定每個周末都去拜訪那些老人們。2動詞itno good/no use/useless/a waste of time/worth ones while等doing .Ill make it worth your while telling me about his secret.告訴我他的秘密，我會酬謝你的。He thought it no use trying to convince them. 他認為企圖說服他們沒有用。 3動詞it介詞短語that . owe it to sb. that .把歸功于 take it for granted that . 想當然/認為是當然的 He

13、owes it to his doctors care that he is quite well again. 多虧醫(yī)生的照料，他身體又好起來了。4動詞appreciate/hate/love/like/dislike后面接if 或when引導的從句作賓語時，中間需用形式賓語it，構成“appreciate/hate/love/like/dislikeitif/when從句”。He will appreciate it if they will invite him.如果他們邀請他，他將非常感激。She hates it when he bragged that he was the mos

14、t important.她討厭他自吹自己最重要。即時演練3補全句子First of all, I think_it_very_important_to_make_more_friends abroad.首先，我認為在國外多交朋友是非常重要的。(2014山東高考改編)Susan made_it_clear_to_me_that she wished to make a new life for herself.蘇珊明確向我表明，她想為自己謀得一份新生活。(2014陜西高考改編)Id_appreciate_it_if you could let me know in advance whether

15、 or not you will come.如果你能讓我提前知道你是否能來，我會很感激的。I think_it_no_use_arguing with him.我認為和他爭論是沒有用的。We all take_it_for_granted_that Mile can succeed.我們都想當然地認為米萊能成功。.單句語法填空1New technologies have made it easier to enjoy life than ever before. 2You may depend on it that they will look after your daughter when

16、 you are away.3From the teachers patient explanation, I have learnt what a big responsibility it is to educate us.4Have you got used to the weather here?Yes. But I dont enjoy it in the summer when it rains on end.5I need to buy a new cellphone badly but I cant afford it. 6I know it is important to k

17、now my own limitations, but what is difficult is to help others to know their own limitations.7I would appreciate it very much if you could give me some suggestions.8It is_known (know) to us that he is one of the most famous football players in the world.9It never occurred to me that you could succe

18、ed in persuading him to change his mind.10Will you see to it that my children are taken good care of while I am away?11It felt funny watching myself on TV.12There is still a copy of the book in the library. Will you go and borrow it?.單句寫作1(2015江蘇高考滿分作文)It_is_everyones_responsibility_to_obey the rule

19、s to keep the society in order and peoples lives safe.遵守規(guī)則讓社會保持秩序、人民生活安定是每個人的責任。2It_is_obvious_that iPad is of great help to our study, especially to our English listening.顯而易見，iPad對我們的學習有很大幫助，尤其是對我們的英語聽力。3It_is_wellknown_that learning English well will be of great benefit to us all.眾所周知，學好英語對我們大家都大

20、有益處。4(2015江蘇高考書面表達)Whats worse, some drivers, cyclists and pedestrians do not think_it_vital_to_obey traffic rules.更糟的是，一些司機、騎車人和行人認為遵守交規(guī)沒有多么重要。5(2015重慶高考滿分作文)I_would_appreciate_it_if you could tell me more about the activity.如果你能告訴我更多活動事宜，我將不勝感激。6I think_it_necessary_that we take plenty of boiled w

21、ater every day.我認為我們每天喝大量的開水是必要的。.語法填空Do you have sleeping problems? If so, then these tips may help you fall asleep fast.Set aside the thought _1_ you have to fall asleep. The more you think of it, the _2_ (hard) you will fall asleep.The foods you eat also play _3_ important part. Avoid eating or d

22、rinking things like chocolates, coffee, tea and energy drinks. If you have to, then have them in the morning and never in the afternoon, _4_ (especial) before going to bed. Dont eat too much at night. A full stomach will make it more difficult for you _5_ (fall) asleep because your body is working m

23、ore time to digest the food you ate.Make a _6_ (fix) time to go to bed. For example, by 9 oclock in the evening you should already be in bed. Do this even if youre not sleepy yet. Once _7_ (follow) this routine, you will gradually see that you feel _8_ (sleep) when its 9 oclock.Make your room comfortable for sleeping. Y