牛津版 (深圳&廣州)九年級下冊（2014秋審查）Unit 4 Natural disasters圖文課件ppt

這是一份牛津版 (深圳&廣州)九年級下冊（2014秋審查）Unit 4 Natural disasters圖文課件ppt，文件包含Unit4NaturaldisastersPeriod3Grammar課件pptx、Unit4NaturaldisastersPeriod3Grammar教案doc、Unit4NaturaldisastersPeriod3Grammar練習(xí)doc、Unit4NaturaldisastersPeriod3Grammar學(xué)案doc、人稱代詞it之形式主語mp4等5份課件配套教學(xué)資源，其中PPT共22頁， 歡迎下載使用。
Watch the vide and talk abut it.
Read the sentencesIs it true that yu’ll g abrad next mnth?It's imprtant t learn a freign language.It takes at least ten hurs t get there.
人稱代詞it之形式主語1. 當(dāng)不定式、動名詞或從句在某個句子中作主語，為保持句子結(jié)構(gòu)前后平衡，避免頭重腳輕，常用it作形式主語置于句首，而將真正的主語置于句尾。此時的it只起先行引導(dǎo)作用，本身無詞義。2. 當(dāng)句子主語為動名詞或從句時，也常使用it作形式主語。
Let’s review
I had a dream last night. It was abut a natural 1. d_______. My bedrm was flded like a 2. p_____. When I lked ut f the windw, water was everywhere. It 3. c_________ rads, parks and small huses. Lts f 4. ________ were flating. I tried t call my dad, but the line was 5. d______. I sent an email t him. But he said he was busy. He had t 6. s_______ with his wrk.
根據(jù)課文內(nèi)容及首字母提示,補全下面短文,每空一詞
He culdn’t give me any help. I asked fr help by 7. e_________ my best friend. He culdn’t help either. Peple just sat and 8. s________ at the screens. It 9. s__________ that cmputers were mre imprtant than the fld. When they fund the water cvering their cmputers, they started t 10. n________, but it was t late.
Let’s learn
1. It is ne ’clck. 2. It is summer nw. 3. It rained all day. 4. It is nly a five-minute walk frm my hme t the schl.5. It is ht in this rm.
在表示時間、季節(jié)、天氣、距離或溫度的表達方式里，我們用it作形式主語。此時，it無實際意義但不可以省略。
(The seasn)
(The weather)
(The distance)
(The temperature)
Read and summary
1. What's the weather like tday?2. What's the time nw?3. What is the date tday?4. What is the seasn nw?5. Hw far is yur hme frm schl?
Answer these questins using it as the subject.
1. nw/ fr supper/ it/ time / is2. autumn/ in Australia/ nw/ it/ is3. abut five kilmetres/ it/ is/ t the park4. windy/ was/ it/ yesterday
Put the wrds in the crrect rder t make meaningful sentences.
It is time fr supper nw.
It is autumn in Australia nw.
It is abut five kilmetres t the park.
It was windy yesterday.
My bss has given me sme wrk. It’s imprtant t stick with it.2. It tk a lng time t build the huse.3. It is wrng t pay n attentin t Kevin.4. It is nt a gd idea t sit arund and wrry abut the fld.
當(dāng)句子的主語是動詞不定式短語時，動詞不定式短語一般不放在句首，而通常用it來作為句子的開頭，動詞不定式短語則放在句末。
1 T?learn?English well?is?nt?easy fr him. 2 T study tw languages is very hard. 3 T find ut the truth is imprtant.
Rewrite the sentences belw using it as the empty subject.
It is nt easy fr him t learn English well.
It is very hard t study tw languages.
It is imprtant t find ut the truth.
Write a sentence using it and a t-infinitive under each picture belw.
It is imprtant t stay calm when there is a fire.
It is dangerus t start a fire in the frest.
It is a gd idea t take an umbrella.
It is nice t have a picnic in the park.
1. It seemed that nwhere was t far fr Zheng He t visit.2. It seems/appears that nbdy is paying any attentin t the fld.3. It seems/appears that his mther knws the truth.
It 作為形式主語還常見于It seems / appears that… 的句型中。我們常常將it放句首作主語，而將真正的充當(dāng)主語的從句移到句末
Put the wrds in brackets in the crrect rder t cmplete the cnversatins.
1 S1: Lk at the sky. There are many dark cluds, and the wind is blwing strngly. S2: ______________________________ (it/seems/a typhn/that/cming/is)2 S1: Is yur father ging t Beijing tday? S2: N. ______________________________________ (it/appears/has been cancelled/the flight/that)
It seems that a typn is cming.
It appears that the flight has been cancelled.
3 S1: Mary lks very sad. __________________________________________ (it/seems/smething bad/her/that/has happened t) S2: I heard that her sn died in the fld.
It seems that smething bad has happened t her.
1.?It?+?be?+?adj. +?(fr/f sb)+?動詞不定式 It’s hard fr him t learn English well.? It is implite f him t laugh at the little girl.2. It is n use/gd/a waste f time ding sth. It is a waste f time watching TV.3. It?+?takes?(?sb?)+?時間（金錢）+?動詞不定式? It tk him tw hurs t finish his hmewrk last night.
其他it作形式主語常見句型?
4. It + be + 形容詞+主語從句 It is uncertain whether he can cme t Jenny’s birthday party r nt.5. It + be + a fact/a pity/a shame/an hnur/a questin + 主語從句 It’s a pity that yu missed the exciting ftball match. It remains a questin whether he will cme r nt. 6. It + be + annunced/believed/expected/hped/decided/reprted/ said/shwn + 主語從句 It is reprted that 16 peple were killed in the earthquake. It is nt decided wh will give the peratin t the patient.
1. In fact is a hard jb fr the plice t keep rder in an imprtant ftball match. A. this B. that C. there D. it2. Is ______ necessary t take ff ur shes when we enter the lab? A. everyne B. this C. her D. it3. _______ will take yu a lt f time t find him in the crwd. A. It B. I C. We D.They
Grup cmpetitin
4. It is n use his _________ there, the situatin is hpeless nw. A. t g B. t be ging C. ging D. having gne5. ___________ is knwn t all that Shenzhu Ⅸ Launched Successfully. A. As B. What C. It D. That
1. it作形式主語可以表示時間、季節(jié)、天氣、距離或溫度等。2. it作形式主語可以表示動詞不定式3. It seems / appears that… 4.?It?+?be?+?adj. +?(fr/f sb)+?動詞不定式5. It is n use/gd/a waste f time ding sth.
it作形式主語用法歸納