人教版高一必修二book2-unit3-Computers--grammar-课件
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2. …, I have been used in offices and homes since the 1970s.
3. … I never forget anything I have been told!
4. Since the 1970s, many new applications have found for me.
人教版高一必修二book2-
unit3-Computers-grammar-课件
Task1. Presentation
I. Read the sentences from the text, paying attention to the underlined parts. 1.Over time I have been changed quite a lot.
3．这座城市明年将建多少座大楼？ How many high buildings ________________in this city next year? 答案：will be built 4．为了多种一些谷物，很多树被砍掉了。 Large numbers of trees ______________to grow more grain. 答案：have been cut down
The work has already been finished. 工作已完成了。(结果是，现在不用做这项工作了)
2) 表示一个被动的动作或状态开始于过去，持续 到现在，并有可能持续下去，常与for或since引导 的时间状语连用，或用于How long...？句型中。例 如：
The plan has been discussed for nearly 2 hours. 这项计划已被讨论了近两个小时了。 3) 用在时间或条件状语从句中，表示将来某时已 完成的动作，即用现在完成时的被动语态代替将 来完成时的被动语态。
II. Translation
1. Two windows have been broken． 两个窗子被打破了。
2. The car has not been repaired． 这辆汽车还没有被修好。
3． ─Have the cars been repaired？ ─No，they haven’t． 这些汽车修好了吗？ 不，还没有。
How long has her work been finished？ 她的工作完成有多久了？
2. 现在完成时被动语态的各种句式：
[肯定式] have/has＋been＋done Your computer has been repaired. 你的电脑已经修好了。
[否定式] have/has＋not＋been＋done The desks have not been cleaned. 这些桌子还没有擦干净。
You can go home as soon as your task has been finished. 你的任务一完成就可以回家。
Task 2 Test yourself!
Ⅰ. 完成句子 1．由于大雪，高速公路已经被封闭。 The freeway _______________because of the heavy snow. 答案：has been closed 2．对不起，先生，这次展览的门票已经全部卖完 了。 Sorry，sir，all the tickets for the exhibition ________________. 答案：have been sold out
5. I have also been put into robots and used to make mobile phones as …
The Present Perfect Passive Voice
（现在完成时的被动语态）
讲解归纳
1. 构成：
主动语态
被动语态
现在完成时 have/has done have/has been done
3. 现在完成时被动语态的主要用法
1) 表示过去发生的动作对现在造成的影响与结果。 当动词为短暂动词时，可与already或yet连用，但 不能与for或since引导的表示一段的时间状语连用。 例如： I’m sorry，but the letters haven’t been typed yet. 很抱歉，这些信件还没有被打印出来。(结果是， 现在还拿不到这些信件)
2．The new dictionaries are very useful.They
________well and ________already. A．sell；have been sold out B．sold；had sold out C．sell；sell out D．are sold；have been sold out 解析：选A。第一空sell说明主语的性质，为不及 物动词用法，不能用于被动语态；第二空根据副 词already可知“已卖完了”；且sell out(售完)与 dictionaries间为被动关系，故选A项。
[疑问式]Have/Has＋主语＋been＋done? —Has the door been painted? 那扇门粉刷了吗？ —No，it hasn’t.不，还没有。 [特殊疑问式] 疑问词＋have／has＋主语＋been＋done
How long has her work been finished？ 她的工作完成有多久了？
5．我喜欢这部科幻电影，它已经在电视上播了三 次了。
I like this science fiction film and it _____________ three times on TV. 答案：has been shown
Ⅱ. 单项填空 1．His sister left home in 1998，and _______since. A．had not been heard of B．has not been heard of C．had not heard of D．has not heard of 解析：选B。考查时态及语态。句意为：他姐姐 1998年离家出走，从此杳无音信。根据句中since可 知本题需用完成时，同时根据句意可知需用现在完 成时的被动语态。故选B项。
3. … I never forget anything I have been told!
4. Since the 1970s, many new applications have found for me.
人教版高一必修二book2-
unit3-Computers-grammar-课件
Task1. Presentation
I. Read the sentences from the text, paying attention to the underlined parts. 1.Over time I have been changed quite a lot.
3．这座城市明年将建多少座大楼？ How many high buildings ________________in this city next year? 答案：will be built 4．为了多种一些谷物，很多树被砍掉了。 Large numbers of trees ______________to grow more grain. 答案：have been cut down
The work has already been finished. 工作已完成了。(结果是，现在不用做这项工作了)
2) 表示一个被动的动作或状态开始于过去，持续 到现在，并有可能持续下去，常与for或since引导 的时间状语连用，或用于How long...？句型中。例 如：
The plan has been discussed for nearly 2 hours. 这项计划已被讨论了近两个小时了。 3) 用在时间或条件状语从句中，表示将来某时已 完成的动作，即用现在完成时的被动语态代替将 来完成时的被动语态。
II. Translation
1. Two windows have been broken． 两个窗子被打破了。
2. The car has not been repaired． 这辆汽车还没有被修好。
3． ─Have the cars been repaired？ ─No，they haven’t． 这些汽车修好了吗？ 不，还没有。
How long has her work been finished？ 她的工作完成有多久了？
2. 现在完成时被动语态的各种句式：
[肯定式] have/has＋been＋done Your computer has been repaired. 你的电脑已经修好了。
[否定式] have/has＋not＋been＋done The desks have not been cleaned. 这些桌子还没有擦干净。
You can go home as soon as your task has been finished. 你的任务一完成就可以回家。
Task 2 Test yourself!
Ⅰ. 完成句子 1．由于大雪，高速公路已经被封闭。 The freeway _______________because of the heavy snow. 答案：has been closed 2．对不起，先生，这次展览的门票已经全部卖完 了。 Sorry，sir，all the tickets for the exhibition ________________. 答案：have been sold out
5. I have also been put into robots and used to make mobile phones as …
The Present Perfect Passive Voice
（现在完成时的被动语态）
讲解归纳
1. 构成：
主动语态
被动语态
现在完成时 have/has done have/has been done
3. 现在完成时被动语态的主要用法
1) 表示过去发生的动作对现在造成的影响与结果。 当动词为短暂动词时，可与already或yet连用，但 不能与for或since引导的表示一段的时间状语连用。 例如： I’m sorry，but the letters haven’t been typed yet. 很抱歉，这些信件还没有被打印出来。(结果是， 现在还拿不到这些信件)
2．The new dictionaries are very useful.They
________well and ________already. A．sell；have been sold out B．sold；had sold out C．sell；sell out D．are sold；have been sold out 解析：选A。第一空sell说明主语的性质，为不及 物动词用法，不能用于被动语态；第二空根据副 词already可知“已卖完了”；且sell out(售完)与 dictionaries间为被动关系，故选A项。
[疑问式]Have/Has＋主语＋been＋done? —Has the door been painted? 那扇门粉刷了吗？ —No，it hasn’t.不，还没有。 [特殊疑问式] 疑问词＋have／has＋主语＋been＋done
How long has her work been finished？ 她的工作完成有多久了？
5．我喜欢这部科幻电影，它已经在电视上播了三 次了。
I like this science fiction film and it _____________ three times on TV. 答案：has been shown
Ⅱ. 单项填空 1．His sister left home in 1998，and _______since. A．had not been heard of B．has not been heard of C．had not heard of D．has not heard of 解析：选B。考查时态及语态。句意为：他姐姐 1998年离家出走，从此杳无音信。根据句中since可 知本题需用完成时，同时根据句意可知需用现在完 成时的被动语态。故选B项。