外研版（2019）选择性必修 第二册Unit5 A delicate world-Period 2 Using language课件(共14张PPT)

(共14张PPT)
Unit 5
A delicate world
it as an empty object
1.To understand the general knowledge of it as an empty object.
2. To be able to use it as an empty object in proper situations.
Learning aims
观察句子
1．No visitor would think it surprising that the island is a UNESCO World Heritage Site.
2．Experts felt it necessary to come up with a plan to remove all the rabbits from the island.
3．This incident made it clear that the rat, mouse and rabbit problem needed solving.
4．This intervention is a long, much delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.
5．I do not consider it worthwhile spending too much time on telephone conversation.
6．She found it troublesome having to go through all the red tape.
7．You may rely on it that he will come in time.
8．I don't like it when you shout at me.
Leading-in
1．以上句子中，句1和句3中it充当形式宾语，真正的宾语是 ；句2和句4中it充当形式宾语，代替 ；句5和句6中的it代替 。
2．句7中介词后不接 引导的宾语从句，需要用it作形式宾语。
3．句8说明某些动词后不直接跟 ，需要先用it作形式宾语，再接从句。
Leading-in
that从句
动词不定式
that
动名词短语
宾语从句
当动词不定式(短语)、v. ing(短语)或从句作宾语时，为了保持句子结构的平衡，常用it作形式宾语，而将真正的宾语后置。
一、代词it后接宾语补足语
1．动词十it＋宾语补足语十不定式
I found it important to learn spoken English. 我发现学习英语口语很重要。
2．动词十it＋宾语补足语十动名词
I did consider it no use reporting the incident. 我确实认为报道这件事没有用。
3．动词＋it＋宾语补足语十从句
I think it necessary that you study hard. 我认为你努力学习是必要的。
【即学即练】 完成句子
(1)他立志决不向别人借钱。
He money from others.
(2)我认为花太多时间看电视没有好处。
I watching TV.
(3)我想说清楚我并没有偷他的钢笔。
I want to I didn't steal his pen.
makes it a rule never to borrow
think it no good spending too much time
make it clear that
二、代词it后不接宾语补足语
1．动词＋it＋that/when/if从句
能用于此结构的动词常见的有have, take, put, like, dislike, love, hate, appreciate等。
I like it that you came.　你来了，我很高兴。
Rumor has it that the defence minister will soon resign.
据传闻，国防部长不久就要辞职。
We really appreciate it when she offered to help.
她来帮忙了，我们十分感激。
2．动词＋介词＋it＋that从句
能用于此结构的“动词＋介词”常见的有see to、 look to、 insist on、 stick to、 depend on、 rely on、 answer for等。
See to it that you're not late again. 　务必不要再迟到。
Look to it that this doesn't happen again. 注意不要再发生这种事。
3．动词十it＋介词短语＋that从句
能用于此结构的“动词＋it＋介词短语”常见的有take it for granted、 bring it to one's attention、 owe it to sb.等。
I owe it to you that I am still alive.　多亏有你我还活着。
I took it for granted that he would help us. 我认为他帮助我们是理所应当的。
【即学即练】完成句子
(1)我讨厌他一边吃一边说话。
I with his mouth full.
(2)如果你能提前告诉我你是否会来，我将不胜感激。
I in advance whether or not you will come.
(3)你不可以相信他们会做大量的工作。
You can not they will do loads of work.
hate it when he talks
would appreciate it if you could let me know
depend on it that
Summary
Ⅰ单句语法填空
1．I dislike that he intervenes in my business.
2．We thought it no use (do) that at that time.
3．Are you driving to the airport, sir I'd appreciate if you could give me a lift.
4．We make it a rule (satisfy) our customers to the greatest extent.
5．He told the press that the threat from his country made it impossible for him (travel) to Latin America.
6．Most computer users think it necessary for their software (update) regularly.
7．I hate it the weather becomes freezing cold because there is no heater inside.
it
doing
it
to satisfy
to travel
when
to be updated
Ⅱ完成句子
1．我发现不采取措施在这儿等是没有用的。
I taking no measures.
2．如果你能就如何学好英语给我提一些建议，我会感激不尽的。
I you could give me some advice on how to learn English well.
3．我觉得与汤姆相处很容易。
I with Tom.
4．我想当然认为你会来参加会议。
I you will be coming to the meeting.
5．我不爱听你吹口哨。
I you whistle.
find it no use waiting here
would appreciate it if
find it easy enough to get on/along
take it for granted that
dislike it when
A common danger causes common action.
同舟共济。