not - unless chỉ dùng để thay thế mệnh đề phụ trong câu điều kiện, mệnh đề chính không đổi.. Unless you had stayed at home yesterday, you wouldn’t have enjoyed a delicious meal.. Unless
Trang 1UNLESS (TRỪ KHI) = IF NOT (NẾU KHÔNG)
UNLESS
CÔNG THỨC CỦA MỆNH ĐỀ IF (PHỤ)
- unless = if not
- unless chỉ dùng để thay thế mệnh đề phụ
trong câu điều kiện, mệnh đề chính không đổi.
1 Unless S + V1/s(es) ↔ If S + don’t / doesn’t +
Vo
2 Unless S + am, is, are ↔ If S + am, is, are + not
3 Unless S + V2/ ed ↔ If S + didn’t + Vo
4 Unless S + were ↔ If S + weren’t
5 Unless S + had V3/ed ↔ If S + hadn’t V3/ed
6 Unless S + had been ↔ If S + hadn’t been
Examples :
1 Unless you stay at your bed, you will be punished
If you don’t stay at your bed, you will be punished
2 Unless she drinks water, she will feel thirsty
If she doesn’t drink beer, she will feel thirsty
3 Unless they were absent now, they would meet the head master
If they weren’t absent now, they would meet the head master
4 Unless he cleaned up the car now, his boss could ask him to do this
If he didn’t clean up the car now, his boss could ask him to do this
5 Unless you had stayed at home yesterday, you wouldn’t have enjoyed a delicious meal
If you hadn’t stayed at home yesterday, you wouldn’t have enjoyed a delicious meal
6 Unless he had been busy last night, he could have met his friends
If he hadn’t been busy last night, he could have met his friends
Rewrite the statements by using the conditional sentences:
1 You can’t run fast unless you try your best
2 Because Tom is out, you don’t see him at home
3 The boy wouldn’t go swimming unless the weather were nice
4 Everything was tidy, so I felt pleasant
5 We could have slept well unless the noise had been turned off
6 People hear you coming to my office They phone me
7 Unless you lived in the dormitory, you could annoy me
8 Ngoc didn’t save my kids from hot water because Ngoc was busy meeting his customers
9 Unless the student goes to school early, he will be punished
10 Minh doesn’t get rid of his job because he loves working with computers
11 Unless last night your sister had gone home early, your mother could have waited for her
12 Because my mother wasn’t here, I didn’t ask for some money
13 The dogs can’t bite you unless you touch them
14 The books are expensive I can’t buy them
15 I couldn’t think of myself unless I had some troubles
16 Harry Porter is an adventure film because it talks about the life and the discoveries of him
Trang 2
17 Her car wouldn’t have been broken yesterday unless she had driven fast.
18 Hoa wrote to her parents She wanted to greet them
19 Unless people knew you, they wouldn’t give you some precious information
20 Because these projects were out of date, the manager looked uncomfortable
21 Unless the young girl stops smoking, she won’t be healthy
22 I don’t like cats because cats are fury
23 Unless ten years ago they had lived in USA, they couldn’t have been the citizens in this country
24 Tom didn’t join the camping I couldn’t persuade him to go with us
25 People can’t swim unless they study how to swim
26 Anne doesn’t attend the party because she wants to be alone
27 This department couldn’t be destroyed unless it built carefully
28 Susan agreed to go swimming because she liked water
29 Yesterday, I could have been injured unless I had seen a big container in the street
30 Sports make people healthy, so they do exercise every morning
31 Unless you were me, you couldn’t understand me
32 We are the world We can co - operate one another
33 Unless this man is a driver, he can’t help you move by car
34 Dannis isn’t at home because he is on business
35 Unless they had been on the phone last night, they couldn’t have known the big secrets
36 Because man is the first person on Earth, he discovers the earth by hands and brain
37 You can’t join the club unless you are sick
38 Our picnic was passed easily because my mother helped me
39 Unless he refused everything, he would lose his family
40 Anne carried out a plan Her family admired her so much
41 Unless I saved my money, someone would take it
42 Because she wasn’t tired, she could go on running
43 Linda can’t do her homework unless she is free
44 Richard played piano well, so everyone clapped their hands