英语必修二人教版 Unit3 Computers2.3+grammar
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2.I have lost my watch just now. I lost my watch just now. I have just lost my watch.
3.He walked to work in the past few years. He has walked to work in the past few years. He walked to work in the past.
4. ---- How long ____ at this job? ---- Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed
5. When and where to go for the onsalary holiday ____ yet.
现在完成时和一般过去时的区别
★现在完成时强调过去的动作对现在有影响；一般过去时
只表示过去某个具体时间里发生的动作，与现在没有联系。
Jane left an hour ago . Jane has left now.(她现在已经不在这里了。)
★两者都可表示过去开始并延续了一段时间的动作，但现
在完成时表示动作可能还要继续下去，而一般过去时则说 明动作已经结束。
Complete the following sentences：
1. 脏衣服都已经洗了。
The dirty clothes___h_a_ve__b_e_e_n_w__a_s_h_e_d_. ____. 2. 这项计划已经由专家改动过三次了。 The plan__h_a_s__b_e_e_n_c_h_a_n_g_e_d___by the experts for three times. 3. 我的电脑很快就被修理好了。 My computer _h_a_s_b_e_e_n__re_p_a_i_re_d__very quickly. 4. 这个问题还没有解决。 The problem __h_a_s_n_o_t_b_e_e_n__s_o_lv_e_d___yet.
7. --Did you move into the new house? -- No. The rooms ___ yet. A. were being painted B. are painting C. have not painted D. have not been painted
8. Great changes___ in my hometown and a lot of factories ___.
★被动语态的构成：
一般过去时的被动语态： was/were +过去分词
现在完成时的被动语态： have/has + been + 过去分词
一般过去时态中的时间状语
★一般过去时常与具体的表示过去的时间状语 连用，如yesterday, last week, two days ago, at 10:00, in 1980, in the 2020s等。
1.A new personal computer has been bought by my friend.
2.My computer has been repaired by the shop very quickly.
3.My computer has just been attacked by an unknown virus.
4.She has appeared at 3:00 this afternoon. She appeared at 3:00 this afternoon.
A. I’ve been told B. I’ve told
C. I’m told
D. I told
3. All the preparation for the task ____, and we’re ready to start.
A. completed B. complete C. had been completed D. have been done
●主语是行为动作的承受者
●谓语动词表示动作已经完成 例如： I have been told about it many times． The bridge has just been built．
Change the following sentences into the
present perfect passive voice.(见课本P21)
4.The problem has not been solved by us yet.
5.The computers have been given away to a local school by the company.
6.A kind of intelligent robot has been developed by the scientists.
★还跟once, just now, in the other day(不久前 的某一天)， in the past等模糊时间状语连用。
改错
1.I have finished reading this book three days ago. I finished reading this book three days ago. I have finished பைடு நூலகம்eading this book since three days ago.
The Present Perfect Passive Voice
现在完成时的被动语态
现在完成时态中的时间状语
★现在完成时常与 already, always, often, ever, never, yet, not...yet, just等模糊的时间副词连用。
★还可以和表示跟现在有关的或者一直延续到 现在的时间状语连用。如: now, today, this month, this year, lately recently, these few days , in the past 10 years, in the last few years, so far , up to now, ever since等。
Exercises
1. Both my brother work at the power
station that ___ in my hometown.
A. has set up B. has been set up
C. was set up
D. is set up
2. ---_____ the sports meet will be put off.
3. Since the 1970s many new applications __________(find) havefobremenef.ound
4. I have also _b_e__e_n__p(uptut) into robots and used to make mobile phones as well as help with medical operations.
5. The house has been rebuilded the way we wanted.
The house has been rebuilt the way we wanted.
6. The accident has been happened here. The accident has happened here.
2. Many problems has been found with our new computer. Many problems have been found with our new computer.
3. The computer was used every day since we bought it.
The computer has been used every day since we bought it. 4. A lot of e-mails had written on the computer in the past 5 years.
A lot of e-mails have been written on the computern in the past 5 years.
A. are not decided B. have not been decided C. is not being decided D. has not been decided
6. Betty___ injured since last Saturday. A. has been B. was C. is D. has
He worked in the hospital for 7 years. (现在不在那个医院了) He has worked in that hospital for 7 years. （现在仍在那里工作）
★时态的构成：
一般过去时： 用动词的过去式 (was/were/did)表示 现在完成时： have/has +过去分词
课文内容复习：用动词正确形式填空．
1. First as a PC and then as a laptop, I ___h_a_v__e_b__e(eunsues)eidn offices and homes since the 1970s.
2. Over time my memory __h_a_s__d_e__v_e(ldoepveedlop) so much that, like an elephant, I never forget anything I __________(tohladv)e. been told
A. have been taken place; are being set up
B. have taken place; have been set up C. are taken place; had been set up D. took place; will set up
改错
1. A personal computer has bought by us. A personal computer has been bought by us.
5. I __h_a_v__e_e__v_e_n__b_e__e(nppuut)t into space rockets and sent to explore the Moon and Mars.
1. 现在完成时的被动语态构成：
have/has (not)+ been + 过去分词
2.现在完成时的被动语态特点：
3.He walked to work in the past few years. He has walked to work in the past few years. He walked to work in the past.
4. ---- How long ____ at this job? ---- Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed
5. When and where to go for the onsalary holiday ____ yet.
现在完成时和一般过去时的区别
★现在完成时强调过去的动作对现在有影响；一般过去时
只表示过去某个具体时间里发生的动作，与现在没有联系。
Jane left an hour ago . Jane has left now.(她现在已经不在这里了。)
★两者都可表示过去开始并延续了一段时间的动作，但现
在完成时表示动作可能还要继续下去，而一般过去时则说 明动作已经结束。
Complete the following sentences：
1. 脏衣服都已经洗了。
The dirty clothes___h_a_ve__b_e_e_n_w__a_s_h_e_d_. ____. 2. 这项计划已经由专家改动过三次了。 The plan__h_a_s__b_e_e_n_c_h_a_n_g_e_d___by the experts for three times. 3. 我的电脑很快就被修理好了。 My computer _h_a_s_b_e_e_n__re_p_a_i_re_d__very quickly. 4. 这个问题还没有解决。 The problem __h_a_s_n_o_t_b_e_e_n__s_o_lv_e_d___yet.
7. --Did you move into the new house? -- No. The rooms ___ yet. A. were being painted B. are painting C. have not painted D. have not been painted
8. Great changes___ in my hometown and a lot of factories ___.
★被动语态的构成：
一般过去时的被动语态： was/were +过去分词
现在完成时的被动语态： have/has + been + 过去分词
一般过去时态中的时间状语
★一般过去时常与具体的表示过去的时间状语 连用，如yesterday, last week, two days ago, at 10:00, in 1980, in the 2020s等。
1.A new personal computer has been bought by my friend.
2.My computer has been repaired by the shop very quickly.
3.My computer has just been attacked by an unknown virus.
4.She has appeared at 3:00 this afternoon. She appeared at 3:00 this afternoon.
A. I’ve been told B. I’ve told
C. I’m told
D. I told
3. All the preparation for the task ____, and we’re ready to start.
A. completed B. complete C. had been completed D. have been done
●主语是行为动作的承受者
●谓语动词表示动作已经完成 例如： I have been told about it many times． The bridge has just been built．
Change the following sentences into the
present perfect passive voice.(见课本P21)
4.The problem has not been solved by us yet.
5.The computers have been given away to a local school by the company.
6.A kind of intelligent robot has been developed by the scientists.
★还跟once, just now, in the other day(不久前 的某一天)， in the past等模糊时间状语连用。
改错
1.I have finished reading this book three days ago. I finished reading this book three days ago. I have finished பைடு நூலகம்eading this book since three days ago.
The Present Perfect Passive Voice
现在完成时的被动语态
现在完成时态中的时间状语
★现在完成时常与 already, always, often, ever, never, yet, not...yet, just等模糊的时间副词连用。
★还可以和表示跟现在有关的或者一直延续到 现在的时间状语连用。如: now, today, this month, this year, lately recently, these few days , in the past 10 years, in the last few years, so far , up to now, ever since等。
Exercises
1. Both my brother work at the power
station that ___ in my hometown.
A. has set up B. has been set up
C. was set up
D. is set up
2. ---_____ the sports meet will be put off.
3. Since the 1970s many new applications __________(find) havefobremenef.ound
4. I have also _b_e__e_n__p(uptut) into robots and used to make mobile phones as well as help with medical operations.
5. The house has been rebuilded the way we wanted.
The house has been rebuilt the way we wanted.
6. The accident has been happened here. The accident has happened here.
2. Many problems has been found with our new computer. Many problems have been found with our new computer.
3. The computer was used every day since we bought it.
The computer has been used every day since we bought it. 4. A lot of e-mails had written on the computer in the past 5 years.
A lot of e-mails have been written on the computern in the past 5 years.
A. are not decided B. have not been decided C. is not being decided D. has not been decided
6. Betty___ injured since last Saturday. A. has been B. was C. is D. has
He worked in the hospital for 7 years. (现在不在那个医院了) He has worked in that hospital for 7 years. （现在仍在那里工作）
★时态的构成：
一般过去时： 用动词的过去式 (was/were/did)表示 现在完成时： have/has +过去分词
课文内容复习：用动词正确形式填空．
1. First as a PC and then as a laptop, I ___h_a_v__e_b__e(eunsues)eidn offices and homes since the 1970s.
2. Over time my memory __h_a_s__d_e__v_e(ldoepveedlop) so much that, like an elephant, I never forget anything I __________(tohladv)e. been told
A. have been taken place; are being set up
B. have taken place; have been set up C. are taken place; had been set up D. took place; will set up
改错
1. A personal computer has bought by us. A personal computer has been bought by us.
5. I __h_a_v__e_e__v_e_n__b_e__e(nppuut)t into space rockets and sent to explore the Moon and Mars.
1. 现在完成时的被动语态构成：
have/has (not)+ been + 过去分词
2.现在完成时的被动语态特点：