人教版（2019）选择性必修 第四册Unit 3 Sea Exploration单元语法详解课件(共16张PPT)
文档属性
| 名称 | 人教版（2019）选择性必修 第四册Unit 3 Sea Exploration单元语法详解课件(共16张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 1.3MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-03-15 07:56:52 | ||
图片预览
内容文字预览
(共16张PPT)
Unit 3 Sea exploration
单元语法详解
人教版新教材选择性必修四
本单元重点语法
→现在完成时
a. Trade and curiosity have often formed the foundation of mankind’s
greatest achievements.（教材 P26）
b. Trading has grown greatly in recent years, and will continue to do so
in years to come.(教材 P27)
c. China has invested billions in systems and services along these
routes, which will help to greatly develop the whole….(教材 P27)
d. China has also joined its friends across the sea on other important
projects. (教材 P27)
e. Although the ancient sea routes of Zheng He have been travelled
many times, there are still many other places left to explore.(教材 P27)
◆ 原句再现
◆ 现在完成时含义
● 现在时间之前完成的动作及留下的结果或影响,请观察以下句子
He has turned off the light. 他关了灯
(说明屋里是黑的或他要睡觉了)
b. I have been to Beijing twice. 我去过北京两次了
(说明我对北京有些了解)
● 现在时间之前已做的动作，请观察下面的句子
He is reading the book that he has bought recently.
他正在读最近买的书
● 在时间或条件状语从句中，表示在将来某个时间之前要完成的动作，请观察下面的句子
I’ll return the book to you as soon as I have finished it.
我一读完这本书就还给你
●第三人称单数: he/she/it has + 过去分词…..
●其他人称: I/we/you/they + have + done…, 请观察以下句子
◆ 现在完成时的构成
He has already repaired the watch.
b. We have finished the work.
◆现在完成时的用法
● 表示某从过去某一时间开始一直持延续到现在的动作或状态
● 直到现在为止尚未完成的动作，请观察下面的句子
He has lived in Beijing since last summer. 从去年夏天他就住在北京
※现在完成时表示动作或状态的延续性时, 通常使用延续性动词,如：be, work, study, live 等。且常与表示时间段的状语连用，如：for ten
years, all day, in the past three years, since last year…请观察下面句子
a. I have lived in the village for twenty years.
b. He has worked in the factory since 2009.
c. He has been ill since he came back from the school last month.
d. I have sat for hours in the classroom, reading a novel and taking some important notes.
※ 与表示“到目前为止”的时间状语连用，如: so far, up to now,
until now, before now, up till now, previously, 请观察下面句子
a. The weather has been cold so far this winter.
b. -- How long have you been here
-- I have been here for an hour.
※ 非延续性动词不能表示动作延续至今，不能与时间段连用，但在否定句中无此限制，因为动作在这一段时间内不发生是完全可能的，请观察以下句子
He has arrived here for two hours. (错误)
b. He has been here for two hours. (正确)
c. I haven’t seen you for a long time.
●表示过去发生的某一动作对现在造成的影响或结果，常常是费延续性动词，如: begin, give, go, meet, see 等, 并常带时间状语 already,
Yet, once, twice, just, ever, never, recently, still 等, 请观察以下句子
a. Has he visited the city twice.
b. They have just joined our computer to the Internet.
c. He has read two books recently.
●表示从过去开始到目前为止这段时间里反复发生的动作或多次出现的状态，常与 often, always, every week 等连用, 请观察以下句子
He has always said so.
b. I’ve often seen him in the Science Museum.
c. I have meant to tell you the news, but I am too busy.
d. I have intended to come over to see you, but my friend will come to
my house and I can’t get away.
● have/has been 和 have/has gone 的区别
a. Has he ever been here
b. Have you ever been there
c. They have been Shanghai three times.
※ Have/has been 用来表示过往经历，意思是“去过，到过”,常与频度副词 once, ever，never等连用，请观察以下句子
※ Have/has gone 表示 “走了, 到….去了”,一般不与第一、第二人称连用, 但在直接引语的对话中也可以用于第一、第二人称，请观察下面句子
a. He has gone to Shanghai.
b. -- where shall I say you have gone if Tom asks for you
-- Say that I have gone abroad.
● 现在完成时在 “ It is the first/second…time + that 从句” 中的用法
※在 “It is (或 will be) the first/second… time + that 从句” 结构中, that 从句中的谓语动词用现在完成时，引导词 that 可以省略, 请观察以下句子
a. It is the second time that he has been late for class.
b. It will be the first time that she has spoken in public.
※在 “It is (或 will be) the first/second… time + that 从句” 结构中, 主句主语还可以用 this, that, this evening, tomorrow, yesterday 等，请观察以下句子
a. Tomorrow will be the third time that I have sung for the audience.
b. This is the second time that they have been to Beijing.
c. It is the first time that she has visited the Great Wall.
d. That is the last time that she has talked to her teacher.
◆ 现在完成时的基本形式
●肯定式: 以动词 do 为例
※ He /She /It has done…
※ I/We/You/They have done…
● 否定式：以动词 do 为例
※ He /She /It has not done…
※ I/We/You/They have not done…
-- Have I done… -- Yes, you have. (No, you haven’t.)
-- Has she/he/it done… -- Yes, she/he/it has. (No, he/she/it hasn’t.)
-- Have we done… -- Yes, you/we have. (No, you/we haven’t.)
-- Have you done… -- Yes, I/we have. (No, I/we haven’t.)
-- Have they done… -- Yes, they have. ( No, they haven’t.)
● 一般疑问式及回答: 以动词 do 为例
◆ 现在完成时的被动语态
主语 + have/has been done, 请观察以下句子
a. The task has been finished so far.
b. People have been warned of the danger from sandstorm recently.
c. They have just been informed of the good news.
d. Till now the book has been translated in three languages.
◆考点训练
1. Both his parents look sad. Maybe they _________ what's happened to him .
Ａ. knew Ｂ. have known Ｃ. must know Ｄ. will know
2. He has _______ been to Shanghai, has he
Ａ. already Ｂ. never Ｃ. ever Ｄ. still
3. Have you met Mr. Li ______？
Ａ. just Ｂ. ago Ｃ.before Ｄ. a moment ago
4. The famous writer _____ one new book in the past two years .
Ａ. is writing Ｂ.was writing Ｃ.wrote Ｄ.has written
5. -- Our country ______ a lot so far .
-- Yes. I hope it will be even ______.
Ａ. has changed ; well Ｂ. changed ; good
Ｃ. has changed ; better Ｄ. changed ; better
B
B
C
D
C
6. Zhao Lan ______already ______in this school for two years .
Ａ. was ; studying Ｂ. will ; study Ｃ. has ; studied Ｄ. are ; studying
7. We ______ Xiao Li since she was a little girl .
Ａ. know Ｂ. had known Ｃ. have known Ｄ. knew
8. Harry Potter is a very nice film. I _______ it twice .
Ａ. will see Ｂ. have seen Ｃ. saw Ｄ.see
9. --These farmers have been to the United States .
--Really When _____ there
Ａ. will they go Ｂ. did they go Ｃ. do they go Ｄ. have they gone
10. -- ______ you ___ your homework yet
-- Yes . I _____ it a moment ago .
Ａ. Did ; do ; finished Ｂ. Have ; done ; finished
Ｃ. Have ; done ; have finished Ｄ. will ; do ; finish
C
C
B
B
B
11. His father ______ the Party since 1978 .
Ａ. joined Ｂ. has joined Ｃ. was in Ｄ. has been in
12. -- Do you know him well
-- Sure .We _________ friends since ten years ago .
Ａ. were Ｂ. have been Ｃ. have become Ｄ. have made
13. -- How long have you ____ here
-- About two months .
Ａ. been Ｂ. gone Ｃ. come Ｄ. arrived
14. Hurry up! The play __________ for ten minutes .
Ａ. has begun Ｂ. had begun Ｃ. has been on Ｄ. began
15. It _____ ten years since he left the army .
Ａ. are Ｂ. has been Ｃ. will Ｄ. Was
16. Miss Green isn't in the office. she_______ to the library .
Ａ.has gone Ｂ. went Ｃ.will go Ｄ. has been
D
B
A
C
B
A
17. My parents ______ Shandong for ten years .
Ａ. have been in Ｂ. have been to
Ｃ. have gone to Ｄ. have been
18. The students have cleaned the classroom, ________
A. so they B. don’t they C. have they D. haven’ t they
19. ________ has Mr. White been a member of Greener China since he to China
A. How soon, comes B. How often, got
C. How long, came D. How far, arrived
20. His uncle _______ for more than 9 years.
A. has come here B. has started to work
C. has lived there D. has left the university
A
D
C
C
That’s all!
Thank you!
Unit 3 Sea exploration
单元语法详解
人教版新教材选择性必修四
本单元重点语法
→现在完成时
a. Trade and curiosity have often formed the foundation of mankind’s
greatest achievements.（教材 P26）
b. Trading has grown greatly in recent years, and will continue to do so
in years to come.(教材 P27)
c. China has invested billions in systems and services along these
routes, which will help to greatly develop the whole….(教材 P27)
d. China has also joined its friends across the sea on other important
projects. (教材 P27)
e. Although the ancient sea routes of Zheng He have been travelled
many times, there are still many other places left to explore.(教材 P27)
◆ 原句再现
◆ 现在完成时含义
● 现在时间之前完成的动作及留下的结果或影响,请观察以下句子
He has turned off the light. 他关了灯
(说明屋里是黑的或他要睡觉了)
b. I have been to Beijing twice. 我去过北京两次了
(说明我对北京有些了解)
● 现在时间之前已做的动作，请观察下面的句子
He is reading the book that he has bought recently.
他正在读最近买的书
● 在时间或条件状语从句中，表示在将来某个时间之前要完成的动作，请观察下面的句子
I’ll return the book to you as soon as I have finished it.
我一读完这本书就还给你
●第三人称单数: he/she/it has + 过去分词…..
●其他人称: I/we/you/they + have + done…, 请观察以下句子
◆ 现在完成时的构成
He has already repaired the watch.
b. We have finished the work.
◆现在完成时的用法
● 表示某从过去某一时间开始一直持延续到现在的动作或状态
● 直到现在为止尚未完成的动作，请观察下面的句子
He has lived in Beijing since last summer. 从去年夏天他就住在北京
※现在完成时表示动作或状态的延续性时, 通常使用延续性动词,如：be, work, study, live 等。且常与表示时间段的状语连用，如：for ten
years, all day, in the past three years, since last year…请观察下面句子
a. I have lived in the village for twenty years.
b. He has worked in the factory since 2009.
c. He has been ill since he came back from the school last month.
d. I have sat for hours in the classroom, reading a novel and taking some important notes.
※ 与表示“到目前为止”的时间状语连用，如: so far, up to now,
until now, before now, up till now, previously, 请观察下面句子
a. The weather has been cold so far this winter.
b. -- How long have you been here
-- I have been here for an hour.
※ 非延续性动词不能表示动作延续至今，不能与时间段连用，但在否定句中无此限制，因为动作在这一段时间内不发生是完全可能的，请观察以下句子
He has arrived here for two hours. (错误)
b. He has been here for two hours. (正确)
c. I haven’t seen you for a long time.
●表示过去发生的某一动作对现在造成的影响或结果，常常是费延续性动词，如: begin, give, go, meet, see 等, 并常带时间状语 already,
Yet, once, twice, just, ever, never, recently, still 等, 请观察以下句子
a. Has he visited the city twice.
b. They have just joined our computer to the Internet.
c. He has read two books recently.
●表示从过去开始到目前为止这段时间里反复发生的动作或多次出现的状态，常与 often, always, every week 等连用, 请观察以下句子
He has always said so.
b. I’ve often seen him in the Science Museum.
c. I have meant to tell you the news, but I am too busy.
d. I have intended to come over to see you, but my friend will come to
my house and I can’t get away.
● have/has been 和 have/has gone 的区别
a. Has he ever been here
b. Have you ever been there
c. They have been Shanghai three times.
※ Have/has been 用来表示过往经历，意思是“去过，到过”,常与频度副词 once, ever，never等连用，请观察以下句子
※ Have/has gone 表示 “走了, 到….去了”,一般不与第一、第二人称连用, 但在直接引语的对话中也可以用于第一、第二人称，请观察下面句子
a. He has gone to Shanghai.
b. -- where shall I say you have gone if Tom asks for you
-- Say that I have gone abroad.
● 现在完成时在 “ It is the first/second…time + that 从句” 中的用法
※在 “It is (或 will be) the first/second… time + that 从句” 结构中, that 从句中的谓语动词用现在完成时，引导词 that 可以省略, 请观察以下句子
a. It is the second time that he has been late for class.
b. It will be the first time that she has spoken in public.
※在 “It is (或 will be) the first/second… time + that 从句” 结构中, 主句主语还可以用 this, that, this evening, tomorrow, yesterday 等，请观察以下句子
a. Tomorrow will be the third time that I have sung for the audience.
b. This is the second time that they have been to Beijing.
c. It is the first time that she has visited the Great Wall.
d. That is the last time that she has talked to her teacher.
◆ 现在完成时的基本形式
●肯定式: 以动词 do 为例
※ He /She /It has done…
※ I/We/You/They have done…
● 否定式：以动词 do 为例
※ He /She /It has not done…
※ I/We/You/They have not done…
-- Have I done… -- Yes, you have. (No, you haven’t.)
-- Has she/he/it done… -- Yes, she/he/it has. (No, he/she/it hasn’t.)
-- Have we done… -- Yes, you/we have. (No, you/we haven’t.)
-- Have you done… -- Yes, I/we have. (No, I/we haven’t.)
-- Have they done… -- Yes, they have. ( No, they haven’t.)
● 一般疑问式及回答: 以动词 do 为例
◆ 现在完成时的被动语态
主语 + have/has been done, 请观察以下句子
a. The task has been finished so far.
b. People have been warned of the danger from sandstorm recently.
c. They have just been informed of the good news.
d. Till now the book has been translated in three languages.
◆考点训练
1. Both his parents look sad. Maybe they _________ what's happened to him .
Ａ. knew Ｂ. have known Ｃ. must know Ｄ. will know
2. He has _______ been to Shanghai, has he
Ａ. already Ｂ. never Ｃ. ever Ｄ. still
3. Have you met Mr. Li ______？
Ａ. just Ｂ. ago Ｃ.before Ｄ. a moment ago
4. The famous writer _____ one new book in the past two years .
Ａ. is writing Ｂ.was writing Ｃ.wrote Ｄ.has written
5. -- Our country ______ a lot so far .
-- Yes. I hope it will be even ______.
Ａ. has changed ; well Ｂ. changed ; good
Ｃ. has changed ; better Ｄ. changed ; better
B
B
C
D
C
6. Zhao Lan ______already ______in this school for two years .
Ａ. was ; studying Ｂ. will ; study Ｃ. has ; studied Ｄ. are ; studying
7. We ______ Xiao Li since she was a little girl .
Ａ. know Ｂ. had known Ｃ. have known Ｄ. knew
8. Harry Potter is a very nice film. I _______ it twice .
Ａ. will see Ｂ. have seen Ｃ. saw Ｄ.see
9. --These farmers have been to the United States .
--Really When _____ there
Ａ. will they go Ｂ. did they go Ｃ. do they go Ｄ. have they gone
10. -- ______ you ___ your homework yet
-- Yes . I _____ it a moment ago .
Ａ. Did ; do ; finished Ｂ. Have ; done ; finished
Ｃ. Have ; done ; have finished Ｄ. will ; do ; finish
C
C
B
B
B
11. His father ______ the Party since 1978 .
Ａ. joined Ｂ. has joined Ｃ. was in Ｄ. has been in
12. -- Do you know him well
-- Sure .We _________ friends since ten years ago .
Ａ. were Ｂ. have been Ｃ. have become Ｄ. have made
13. -- How long have you ____ here
-- About two months .
Ａ. been Ｂ. gone Ｃ. come Ｄ. arrived
14. Hurry up! The play __________ for ten minutes .
Ａ. has begun Ｂ. had begun Ｃ. has been on Ｄ. began
15. It _____ ten years since he left the army .
Ａ. are Ｂ. has been Ｃ. will Ｄ. Was
16. Miss Green isn't in the office. she_______ to the library .
Ａ.has gone Ｂ. went Ｃ.will go Ｄ. has been
D
B
A
C
B
A
17. My parents ______ Shandong for ten years .
Ａ. have been in Ｂ. have been to
Ｃ. have gone to Ｄ. have been
18. The students have cleaned the classroom, ________
A. so they B. don’t they C. have they D. haven’ t they
19. ________ has Mr. White been a member of Greener China since he to China
A. How soon, comes B. How often, got
C. How long, came D. How far, arrived
20. His uncle _______ for more than 9 years.
A. has come here B. has started to work
C. has lived there D. has left the university
A
D
C
C
That’s all!
Thank you!