选修七Unit 2 Robots
Period3 Grammar
Before class:
Learn grammar points before the class
During class:
Step 1Revision
Ask students to answer the following questions without referring to the textbook.
1．What was going to be tested out by Larry's wife，Claire?
2．How did Larry Belmont finally persuade his wife to accept the experiment?
3．How did Claire feel when she was offered sympathy by a robot?
4．What did Tony expect to do about the house before he was to leave and Larry was to return? 5．How did Claire feel when she was envied by those women?
6．What happened to Tony at last?
Step 2Grammar learning
1．不定式的被动形式
当不定式与逻辑主语之间是被动关系时，即不定式的逻辑主语是不定式所表示动作的承受者，不定式一般要用被动形式。
其被动式可以分为两种：一般式和完成式。
(1)一般式：to be done，表示不定式动作在谓语动词之后或者同时发生。
It is a great honor_to_be_invited_to speak here.
很荣幸被邀请在这里讲话。
The novel is said_to_be_published_next month.
据说这本小说下月要出版。
(2)完成式：to have been done，表示不定式动作发生在谓语动词之前。
The book is said to_have_been_translated_into six languages.
这本书据说已经被翻译成六种语言。
The boss preferred_to_have_been_given_more work to do.
老板宁愿被分给更多的工作做。
被动
一般式to be done
完成式to have been done
2.不定式被动形式的作用
(1)作主语
It's an honor to_be_invited to the ceremony.
很荣幸被邀请赴宴。
It's a pity to_be_kept in the house in such fine weather.
在这样好的天气被关在家里真是遗憾。
(2)作表语
The letter is_to_be_sent_by airmail.
这封信笺要空邮。
(3)作宾语
She didn't like to_be_treated as a child.
她不喜欢被当成孩子。
The boy asked to_be_given an opportunity to try again.
那男孩要求给他再试一次的机会。
(4)作宾语补足语
I'd like my bedroom to_be_cleaned.
我想整理一下我的卧室。
(5)作定语
He was the last one_to_be_asked to speak at the meeting.
他是最后一个在会上被邀请发言的人。
(6)作状语
His mother l eft the small village，never_to_be_seen again.
他母亲离开了那个小山村，再也没有人见过她。
3．不定式有些要注意的地方
(1)感官动词和一些使役动词的不定式的主动形式要省去to，但在变成被动语态后需要加上to，能这样用的动词或动词词组有：make，have，let，see，hear，notice，listen to，watch等。
如：
We often see him act like that.＝He is often seen to act like that.
我们常常看到他那样做。
(2)在can't help but，have nothing to do but结构中，介词but后的不定式省去to。
如：
I can't_help_but suspect his motive.
我不禁怀疑起他的动机。
I have_nothing_to_do_but_watch TV.
我没什么事情可做，除了看电视。
(3)不定式有时要用主动形式表示被动意义
①形容词以及含有形容词的名词后的不定式，一般用主动形式表示被动意义，其中形容词常见的有easy，difficult，important，impossible等。
如：
The work is impossible_to_finish in two days.
工作不可能两天之内完成。
English is not so easy_to_learn.
英语并不好学。
②一些固定用法，如“挨骂，受责备，受批评” 用be to blame；“(东西等)出租”用to let。
He is to blame for what he has done.
他应为他所做的受责备。
The house is to let.房子要出租。
Step 3Exercises
1．The crowd cheered wildly at the sight of Liu Xiang，who was reported ______ the world record in the 110－meter hurdle race.
A．Breaking B．having broken C．to have broken D．to break
2．I like getting up very early in summer.The morning air is so good ______.
A．to be breathed B．to breathe
C．Breathing D．being breathed
3．______ the project as planned，we'll have to work two more hours a day.
A．Completing B．Complete
C．Completed D．To complete
4．Having a trip abroad is certainly good for the old couple，but it remains______ whether they will enjoy it.
A．to see B．to be seen
C．Seeing D．seen
5．I hurried to the meeting hall，only______ that the meeting had been put off.
A．to tell B．to be told
C．telling D．told
6．Do let your mother know all the truth；she appears______ everything.
A．to tell B．to be told
C．to be telling D．to have been told
7．Little Tom should love______ to the theater this evening.
A．to be taken B．to take
C．being taken D．taking
8．It is said that plastics can be used to______ many things.Now people are used to______ plastics products.
A．make；using B．making；using
C．making；use D．make；use
9．With a lot of problems______，the newly－elected president is having a hard time. A．Settled B．settling C．to settle D．being settled
Keys：1～5 CBDBB 6～9 DAAC
After class:
Step 4 Homework
Finish off Exercises 1 and 2 on Page 56.
2018年下半年信息处理技术员考试上午真
题（参考答案）
●以下关于数字经济的叙述中，（）并不正确。
（1）A．数字经济以数据作为关键生产要素，以数字技术作为其经济活动的标志B.
数字经济具有数字化、网络化、智能化、知识化、全球化特征C.数字经济以虚
拟经济代替实体经济，与市场经济互斥D.数字经济采用“互联网+创新2. 0”改革
传统工业经济
●（）是按照科学的城市发展理念，利用新- ~代信息技术，通过人、物、城市功能系统之间的
无缝连接与协同联动，实现自感知、自适应、自优化，形成安全、便捷、高效、绿色的城市形态。
（2）A．智慧城市
B.环保城市
C.数字城市
D.自动化城市
●企业实现移动信息化的作用不包括（）。
（3）A．企业职工使用移动设备代替台式计算机，降低企业成本B.加强
与客户互动沟通，实现在线支付，提高客户满意度C.有利于实现按
需生产，产销一-体化运作，提高经济效益D.决策者随时随地了解
社会需求和企业经营情况，快速决策
●某博物馆将所有志愿者分成A、B、C、D 四组(每个志愿者只能分配到-个组)。
已知A 组和B 组共有80 人，B 组和C 组共有87 人，C 组和D 组共有92 人，据此可以推断，A 组和D 组共有（）人。
（4）A．83
B.84
C.85
D.86。
