Unit 3 The World of Science Period 2 Using language课件（共17张）
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| 名称 | Unit 3 The World of Science Period 2 Using language课件（共17张） |  | |
| 格式 | pptx | ||
| 文件大小 | 1.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-11-14 19:31:40 | ||
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(共17张PPT)
Unit 3 The World of Science
Present perfect passive
1.To understand the general knowledge of present perfect passive.
2. To be able to use present perfect passive in proper situations.
Learning aims
1. This evening, I’ll be talking to Dr Richard
Fairhurst, whose new book The New Age of Invention
___just _____ _________
has
been
published
2. I guess you _____ _____ _____(ask) about the title
of your book before.
have been asked
Read the sentences.
Pay attention to the words in red.
Leading-in
4. New inventions like 3D printers ______________
(use) to make replacement hearts and bone parts.
have been used
5. Nothing like this ________________ (invent) yet and I’d say we’re a long way from an invention like that at the moment!
has been invented
3. In addition, important advances _______________
(make) in medicine and environmental science thanks
to increasing computer power.
have been made
现在完成时的被动语态
现在完成时的被动语态强调过去的动作对现在造成的影响或结果, 但主语为动作的承受者, 表示“……已经被……”。
考点一 现在完成时的被动语态的构成
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...？
特殊疑问式 疑问词＋have/has＋主语＋been done...？
He has been selected to take part in the sports meeting.
他已被挑选出来参加运动会。
The ink has not been removed from his overcoat.
墨迹还没有从他外套上去掉。
Has the date for the next meeting been decided
下次会议的日期确定了吗？
How long has the battery not been changed
电池多久没有更换了？
【即学即练】
(1)The experiment ___ _____ _____successfully.
这个实验做得很成功。
(2)The books _____ ___ _____ _________by the students.
那些书还没有被学生们借走。
has
been
done
have
not
been
borrowed
(3)____ the sports meeting _____ ___ ___until next Friday
运动会已经推迟到下周五了吗
(4)So even the olive wreath ___ _____ ________.
就连橄榄枝花环也被取代了。
Has
been
put
off
has
been
replaced
考点二 现在完成时的被动语态的用法
1．表示被动的动作在说话前已经完成，强调过去的动作对现在造成的影响或结果，通常与already、 yet、 just、 never、 recently、 lately等副词以及时间状语so far、 by now、 up till now、 since、 in/during/over the past/last years等连用。
The machine has already been repaired.
2．表示被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long...？”句子中。
(2024·浙江一月高考)Sydney and the New South Wales coast have been hit by heavy rains.悉尼和新南威尔士州海岸遭受了暴雨袭击。
How long has this film been shown
这部电影已放映多长时间了？
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。
You shouldn't leave school before your homework has been finished. 在你的作业没完成之前，你不应该离开学校。
【温馨提示】
现在完成时的被动语态与一般过去时的被动语态的区别
现在完成时的被动语态侧重于表示一个被动的动作或状态尽管发生在过去，但该动作或状态对现在造成了影响或产生了结果；而一般过去时的被动语态表示一个被动的动作发生在过去的某个时间，其结果对现在没有影响。
The big fire has been put out. 大火已经被扑灭了。
The big fire was put out two hours ago. 大火在两小时前被扑灭了。
【即学即练】
(1)Professor James will give us a lecture on the
Western culture, but when and where __________________yet.
詹姆斯教授将要给我们作西方文化的演讲, 但是时间和地点还没有决定。
hasn’t
been
decided
(2)The watch ___just _____ _______ ____ ________.
这只手表刚刚被清理和修理过。
(3)_____ the letters _____ ______
信已经寄出去了吗
(4)_____ ____ _____ the machine _____ ________
这个机器被修了多长时间了
has
been
cleaned
and
repaired
Have
been
posted
How
long
have
been
repaired
(5)They _____ _____ ______ by us for two weeks.
他们得到我们帮助有两周了。
(6)The party ___ _____ _______ since the New Year. 自从新年就计划这次聚会了。
have
been
helped
has
been
planned
Summary
现在完成时的被动语态
1.现在完成时的被动语态强调过去的动作对现在造成的影响或结果, 但主语为动作的承受者, 表示“……已经被……”。
2.现在完成时态的被动语态的构成: have/ has been done
3.现在完成时态的被动语态的用法：
（1）表示被动的动作在说话前已经完成，强调过去的动作对现 在造成的影响或结果，通常与already, yet, just, recently,lately等副词以及时间状语so far, by now, since, in//over the past/last years等连用。
（2）表示一个被动的动作或状态开始于过去, 持续到现在, 并可能持续下去, 常与for或since等引导的时间状语连用, 或用于How long. . . 句型中。
（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。
Ⅰ单句语法填空
1. Many new bridges _________________(built) since 2010.
2. Our classroom _________________ (clean); you needn’t clean it now.
3. All possible means _________________ (try), but nothing can prevent the buildings from being pulled down.
4. Many a new measure _________________ (put) forward to reduce air pollution so far.
5. The construction of the two railway lines _________________ (complete) by now.
have been built
has been cleaned
have been tried
has been put
has been completed
6. More than 50，000 yuan (raise) for the poor family since the group was founded.
7. Black Friday (regard) as the beginning of the holiday shopping season for years.
8. Since the early 1990s, a lot of clinics (found) in this country to treat poor people for free.
9. Over the past three years, the paintings (take) to more than 20 museums in the world.
10. So far, many villages _______________(visit).
has been regarded
have been taken
have been founded
have been visited
has been raised
Ⅱ 完成句子
1． (男孩们已经被多次告知) not to swim in that lake, but it doesn't make any difference.
2．We are glad to be told that Li Tao (已经被复旦大学录取) for his top scores in the Maths Contest.
3．When and where to go for the on salary holiday (没有确定) yet.
4．Though we don't know what was discussed, yet we can feel the topic (已被改变了)．
5．That book (已经被翻译成) at least 20 foreign languages so far.
has not been decided
has been changed
The boys have been told many times
has been admitted to Fudan University
has been translated into
God shuts one door but he opens another.
天无绝人之路。
Unit 3 The World of Science
Present perfect passive
1.To understand the general knowledge of present perfect passive.
2. To be able to use present perfect passive in proper situations.
Learning aims
1. This evening, I’ll be talking to Dr Richard
Fairhurst, whose new book The New Age of Invention
___just _____ _________
has
been
published
2. I guess you _____ _____ _____(ask) about the title
of your book before.
have been asked
Read the sentences.
Pay attention to the words in red.
Leading-in
4. New inventions like 3D printers ______________
(use) to make replacement hearts and bone parts.
have been used
5. Nothing like this ________________ (invent) yet and I’d say we’re a long way from an invention like that at the moment!
has been invented
3. In addition, important advances _______________
(make) in medicine and environmental science thanks
to increasing computer power.
have been made
现在完成时的被动语态
现在完成时的被动语态强调过去的动作对现在造成的影响或结果, 但主语为动作的承受者, 表示“……已经被……”。
考点一 现在完成时的被动语态的构成
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...？
特殊疑问式 疑问词＋have/has＋主语＋been done...？
He has been selected to take part in the sports meeting.
他已被挑选出来参加运动会。
The ink has not been removed from his overcoat.
墨迹还没有从他外套上去掉。
Has the date for the next meeting been decided
下次会议的日期确定了吗？
How long has the battery not been changed
电池多久没有更换了？
【即学即练】
(1)The experiment ___ _____ _____successfully.
这个实验做得很成功。
(2)The books _____ ___ _____ _________by the students.
那些书还没有被学生们借走。
has
been
done
have
not
been
borrowed
(3)____ the sports meeting _____ ___ ___until next Friday
运动会已经推迟到下周五了吗
(4)So even the olive wreath ___ _____ ________.
就连橄榄枝花环也被取代了。
Has
been
put
off
has
been
replaced
考点二 现在完成时的被动语态的用法
1．表示被动的动作在说话前已经完成，强调过去的动作对现在造成的影响或结果，通常与already、 yet、 just、 never、 recently、 lately等副词以及时间状语so far、 by now、 up till now、 since、 in/during/over the past/last years等连用。
The machine has already been repaired.
2．表示被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long...？”句子中。
(2024·浙江一月高考)Sydney and the New South Wales coast have been hit by heavy rains.悉尼和新南威尔士州海岸遭受了暴雨袭击。
How long has this film been shown
这部电影已放映多长时间了？
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。
You shouldn't leave school before your homework has been finished. 在你的作业没完成之前，你不应该离开学校。
【温馨提示】
现在完成时的被动语态与一般过去时的被动语态的区别
现在完成时的被动语态侧重于表示一个被动的动作或状态尽管发生在过去，但该动作或状态对现在造成了影响或产生了结果；而一般过去时的被动语态表示一个被动的动作发生在过去的某个时间，其结果对现在没有影响。
The big fire has been put out. 大火已经被扑灭了。
The big fire was put out two hours ago. 大火在两小时前被扑灭了。
【即学即练】
(1)Professor James will give us a lecture on the
Western culture, but when and where __________________yet.
詹姆斯教授将要给我们作西方文化的演讲, 但是时间和地点还没有决定。
hasn’t
been
decided
(2)The watch ___just _____ _______ ____ ________.
这只手表刚刚被清理和修理过。
(3)_____ the letters _____ ______
信已经寄出去了吗
(4)_____ ____ _____ the machine _____ ________
这个机器被修了多长时间了
has
been
cleaned
and
repaired
Have
been
posted
How
long
have
been
repaired
(5)They _____ _____ ______ by us for two weeks.
他们得到我们帮助有两周了。
(6)The party ___ _____ _______ since the New Year. 自从新年就计划这次聚会了。
have
been
helped
has
been
planned
Summary
现在完成时的被动语态
1.现在完成时的被动语态强调过去的动作对现在造成的影响或结果, 但主语为动作的承受者, 表示“……已经被……”。
2.现在完成时态的被动语态的构成: have/ has been done
3.现在完成时态的被动语态的用法：
（1）表示被动的动作在说话前已经完成，强调过去的动作对现 在造成的影响或结果，通常与already, yet, just, recently,lately等副词以及时间状语so far, by now, since, in//over the past/last years等连用。
（2）表示一个被动的动作或状态开始于过去, 持续到现在, 并可能持续下去, 常与for或since等引导的时间状语连用, 或用于How long. . . 句型中。
（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。
Ⅰ单句语法填空
1. Many new bridges _________________(built) since 2010.
2. Our classroom _________________ (clean); you needn’t clean it now.
3. All possible means _________________ (try), but nothing can prevent the buildings from being pulled down.
4. Many a new measure _________________ (put) forward to reduce air pollution so far.
5. The construction of the two railway lines _________________ (complete) by now.
have been built
has been cleaned
have been tried
has been put
has been completed
6. More than 50，000 yuan (raise) for the poor family since the group was founded.
7. Black Friday (regard) as the beginning of the holiday shopping season for years.
8. Since the early 1990s, a lot of clinics (found) in this country to treat poor people for free.
9. Over the past three years, the paintings (take) to more than 20 museums in the world.
10. So far, many villages _______________(visit).
has been regarded
have been taken
have been founded
have been visited
has been raised
Ⅱ 完成句子
1． (男孩们已经被多次告知) not to swim in that lake, but it doesn't make any difference.
2．We are glad to be told that Li Tao (已经被复旦大学录取) for his top scores in the Maths Contest.
3．When and where to go for the on salary holiday (没有确定) yet.
4．Though we don't know what was discussed, yet we can feel the topic (已被改变了)．
5．That book (已经被翻译成) at least 20 foreign languages so far.
has not been decided
has been changed
The boys have been told many times
has been admitted to Fudan University
has been translated into
God shuts one door but he opens another.
天无绝人之路。