Chú ý khi viết lại câu: 1/ Viết câu tình huống thành câu điều kiện: Câu tình huống Câu điều kiện Thì tương lai Loại 1 Thì hiện tại Loại 2 Thì quá khứ Loại 3 Ex: You ask the teacher this [r]
Trang 1BÀI TẬP CHUYỂN ĐỔI CÂU
* Câu điều kiện:
Loại 1: i u ki n có th x y ra hi n t i ho c tđ ề ệ ể ả ở ệ ạ ặ ương lai
If clause Main clause
S + V1 / V s(es) (don’t / doesn’t + V1) S + will / can/ may + V1 (won’t / can’t + V1) Loại 2: điều kiện không có thật ở hiện tại
S + V-ed / V2 (didn’t + V1)
To be: were / weren’t
S + would / could / should + V1 (wouldn’t / couldn’t + V1) Loại 3: điều kiện không có thật trong quá khứ
S + had + P.P (hadn’t + P.P)
S + would / could / should + have + P.P (wouldn’t / couldn’t + have + P.P)
Chú ý khi viết lại câu:
1/ Viết câu tình huống thành câu điều kiện:
Câu tình huống Câu điều kiện
Ex:
You ask the teacher this question He will answer you
If you ask the teacher this question, he will answer you
He doesn’t have enough money, so he can’t buy a new computer
If he had enough money, he could buy a new computer
We didn’t go out because it rained
If it hadn’t rained, we could have gone out
2/ Đổ ừi t if sang unless:
Khẳng định Khẳng định (động từ trong mệnh đề chính đổi sang phủ định) Phủ định Khẳng định (mệnh đề chính không thay đổi)
Ex: If we had more rain, our crops would grow faster
Unless we had more rain, our crops wouldn’t grow faster
If she doesn’t work harder, she will fail the exam
Unless she works harder, she will fail the exam
3/ Dạng câu: Mệnh lệnh + or + clause
If you don’t + V1, Clause
If you aren’t + adj …, Clause
Ex: Be careful or you will cut yourself
If you aren’t careful, you will cut yourself
Go away or I will call the police
If I you don’t go away, I will phone the police
Trang 2Rewrite the following sentences.
1 Carol didn’t answer the phone because she was studying
2 Rita is exhausted today because she didn’t get any sleep last night
3 She’s very thin; perhaps that’s why she feels cold so much
4 He never polishes his shoes, so he never looks smart
5 He can’t park near his office; that’s why he doesn’t come by car
6 My house is guarded by two big dogs That’s the only reason it isn’t broken into every night
7 The flats are not clearly numbered, so it is very difficult to find anyone
8 I don’t know her e-mail address, so I can’t tell you
9 She works in the evening She has no time to play with her children
10 I don’t want them to be upset, so I’ve decided not to tell them what happened
11 I am not tall enough to join the basketball team
12 He doesn’t see the signal so he doesn’t stop his car
13 Peter gets bad marks because he doesn’t prepare his lessons well
14 Mary doesn’t have enough money She can’t buy a new car
15 Go right now or you’ll be late for the train
16 He doesn’t apply for the job because he doesn’t have enough qualifications
17 Hurry up, or we will be late for the exam
18 They do not understand you because you do not often talk to them
19 Because you speak English unnaturally, they do not understand you
20 Keep silent or you will wake the baby up
If
-21 She didn’t come to the party because she was busy
If
-22 She will help you You tell her
If
-23 Because he didn’t study hard, he failed the exam
If
-24 I was stuck in the traffic jam; that’s why I came late
If
-25 I don’t have his phone number, so I can’t phone him
If
Trang 3-26 “I couldn’t have made it without your help” means
A I couldn’t have made it if you helped me
B I couldn’t have made it if you had helped me
C I couldn’t have made it if you hadn’t helped me
D I couldn’t have made it if you didn’t help me
27 She didn’t stop her car because shi didn’t see the signal
A If she saw the signal, she would stop her car
B If she had seen the signal, she would stop her car
C If she had seen the signal, she would have stopped her car
D If she saw the signal, she would have stopped her car
28 His flight was delayed so he couldn’t be here on time
A He would be here in time if his flight were not delayed
B He would have been here in time if his flight hadn’t been delayed
C He would be here in time if his flight hadn’t been delayed
D He would have been here in time if his flight weren’t delayed
29 Without your help, I couldn’t overcome the problem
A If you don’t help me, I can’t overcome the problem
B If you didn’t help me, I couldn’t overcome the problem
C If you hadn’t helped me, I couldn’t overcome the problem
D If you hadn’t helped me, I couldn’t have overcome the problem
30 Thanks to Laura’s report, I was able to finish the project
A If there isn’t Laura’s report, I wouldn’t finish the project
B Had it not been for Laura’s report, I wouldn’t have been to finish the project
C If Laura didn’t help me, I wouldn’t finish the project
D I wouldn’t have finished the project if Laura didn’t help me