高中英语人教版 (新课标)必修1&2Unit 1 Friendship教课ppt课件
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这是一份高中英语人教版 (新课标)必修1&2Unit 1 Friendship教课ppt课件,共60页。PPT课件主要包含了一 语气的分类,虚拟语气,were,would take,burst,were not,could be,would ask,had been,had got等内容,欢迎下载使用。
陈述语气
I went t the theatre yesterday.
Jack hadn’t cme back hme yet.祈使语气
Let’s g.
Dn’t tuch anything n the table until the bell rings.
虚拟语气
If I were yu,I wuld nt leave her alne.
Our teacher suggested that we g t the library this afternn.
条件句表示主句的条件,分真实条件句 和虚拟条件句 两种。
a. 真实条件句 表示条件是真的或有可能实现的, 采用陈述语气。b. 虚拟条件句 表示条件是无法实现或几乎无法实现的, 采用虚拟语气。
二. ‘if ’虚拟条件句的概念
由 ‘if’ 引导的虚拟条件句叫作 ‘if’虚拟条件句I culd easily recgnize if I had seen him befre.其他虚拟条件句Withut yur help, I culdn’t have finished my wrk n time.
三. if Sentence Structure
‘if ’虚拟条件句的结构
a. 表示与现在事实相反 的假设b. 表示与过去事实相反 的假设c. 表示与将来事实相反 的假设
1. 虚拟语气用于条件状语从句中(1) 表示与现在事实相反的假设, 条件 状语从句中的谓语动词用“过去式(be 动词的过去式用were)”, 而主句中的谓语动词“wuld / shuld/ culd / might + 动词原形”。
If I were a by, I wuld jin the army.
What wuld yu d if yu wn the lttery?If I wn the lttery, I wuld…
If I wn the lttery, I wuld buy an expensive car.
If I had a lt f mney
I wuld buy a villa.
If I had a lt f mney nw, I wuld travel arund the wrld.
If it were fine nw,
I wuld g shpping.
If I ____ a teacher, I….
a. If they ____ (be) here, they __________ (take) yur advice.b. If the wrld-war _____ (burst) ut again, what _____________ (happen) t ur peple n earth?
wuld happen
PRACTICE 1: Fill in the blanks.
c. If the pliceman ________ (be nt) in that rm, it ________ (be) very dangerus.d. If I ____ (be) in yur psitin, I _________ (ask) fr teacher’s help.
2. 与过去的事实相反
从句的谓语用had+过去分词, 构成If I (we, yu, he, they)+had+过去分词的形式;主句的谓语用shuld(第一人称)/wuld (第二、三人称) /culd/might have +动词过去分词。
If he __________ mre carefully, he _________________ the car accident yesterday.
had driven
wuld nt have had
If I ________ hw t swim,
I __________________ trapped in this island.
had learnt
wuld nt have been
a. If Tm ________ (be) mre careful in the exam, he ________________ (pass) it already.b. If yu _______ (get) up earlier, yu ________________ (catch) the first train.
wuld have passed
wuld have caught
PRACTICE 2: Fill in the blanks
c. If I _______ (meet) yu yesterday, we ______________ (g) t the cncert tgether.
wuld have gne
从句的谓语用If I (we, yu, he, they) +动词过去式或 were t d 或shuld d 形式, 主句谓语用shuld(第一人称) /wuld (第二、三人称) /culd/ might +动词原形。
If he gt up early,
he wuld be n time.
假如他来了, 我们对他说什么呢?
If he were t cme, what shuld we say t him.
假如他看见我, 就会认识我。
If he shuld see me, he wuld knw me.
a. If there ________ (be) n natural resurce any mre, we ___________ (make) use f nuclear pwer .b. What ____________ (happen) if yu ____________ (get up) t late tmrrw?
shuld get up
PRACTICE 3: Fill in the blanks
c. If Rbts _____________ (cntrl) the wrld sme day, here ________ (be) n friendship.
were t cntrl
主句与从句的动作发生在不同的时间, 这时主从句位于动词的虚拟语气形式因时间不同而不同, 这叫做混合条件句。 例句中从句与过去事实相反, 主句与现在事实相反 If yu had asked him yesterday, yu wuld knw what t d nw.
If the staff had been mre careful,
the mall wuld nt be n fire nw.
wuld/culd/shuld/might +V. (原)
虚拟语气在条件状语从句中的用法。
wuld/culd/shuld/might + have+ p.p.
1.过去时2.shuld+V.3. were t d
wuld/culd/ shuld/ might +V. (原)
二. 虚拟语气在宾语从句中的用法
1. 在动词wish后的宾语从句中, 表示与现在或过去的事实相反, 或对将来的主观愿望, 从句通常省略连词that。
1) 表示对现在情况的虚拟: 从句动词用过去式或过去进行式 (be动词一般用were) 。
I wish I were as tall as yu.
I wish I were a bird.
I wish every day were my birthday.
I wish/wished I hadn’t eaten s much watermeln.
(2) 表示对过去情况的虚拟:从句动词常用“had+过去分词”。
The party was terrible, I wish I had never gne t it.
(3) 表示对将来的主观愿望: 从句动词形式为 “ wuld+动词原形”。
注意: 主句的主语与从句的主要不能相同, 因为主句的主语所期望的从句动作能否实现,取决于从句主语的态度或意愿(非动物名词除外)。但愿你立刻来。I wish yu wuld cme sn.
I wish it wuld rain tmrrw.
as if/as thugh
由as if (as thugh) 或even thugh (even thugh) 引导的状语从句表示比较或方式时, 从句谓语形式为动词的过去式(be用were)或 “had+过去分词”。
He behaves as if he wned the huse.
(But he desn’t wn it r prbably desn’t wn it r we dn’t knw whether he wns it r nt.)
He talks abut Rme as thugh he had been there himself.
他那样对待我, 好像我式陌生人似的。
He treats me as if I were a stranger.
注意: 如果表示的事情可能会发生, 那么方式状语从句中的谓语动词可用陈述语气。
Even if she were here, she culd nt slve the prblem.
句型练习 (用If I were yu句型翻译下列句子)
1. 我要是你的话, 我就会把英语学好。2. 如果你昨天来, 你就会看见他。3. 万一明天下雨, 我们就不到那儿去。4. 我希望我十年前认识他。5. 他对待我就像对待他自己的儿子一样。
What will yu d if it rains tmrrw?
I will stay at hme if it rains tmrrw.
真实条件句 真实条件句用于陈述语气, 假设的情况可能发生, 其中 if 是如果的意思。
时态关系
句型: 条件从句 主句
一般现在时 shall/will + 动词原形If he cmes, he will bring his vilin.
The vlleyball match will be put ff if it ___.
A. will rain B. rains C. rained D. is rained
答案B 真实条件句主句为将来时, 从句用一般现在时。
注意:在真实条件句中,主句不能用be ging t表示将来,该用shall, will. (错) If yu leave nw, yu are never ging t regret it. (对) If yu leave nw, yu will never regret it.
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