📘 Giải thích tiếng Việt
Từ chỉ thời gian + hiện tại đơn cho tương lai
Sau các từ như after, as soon as, before, until/till, when, while, ta dùng thì hiện tại đơn để nói về tương lai, KHÔNG dùng will hay be going to. Mệnh đề chính vẫn dùng will.
Ví dụ: I'll call you as soon as we solve the problem. Có thể đưa các từ này lên đầu câu: As soon as we solve the problem, I'll call you.
Although (mặc dù)
Although diễn tả sự tương phản, theo sau là một mệnh đề (chủ ngữ + động từ). Ví dụ: Although my homework was difficult, I finished it.
In spite of / Despite (mặc dù)
Hai từ này nghĩa giống nhau, theo sau là danh từ hoặc V-ing, KHÔNG phải cả mệnh đề. Ví dụ: Despite my revision / In spite of revising, I didn't do well.
However (tuy nhiên)
However nối hai câu, thường đứng đầu câu thứ hai và có dấu phẩy: We were sure. However, we were wrong.
Unless (trừ khi)
Unless = if … not (nếu không). Ví dụ: Unless you hurry up, we'll be late.
Theory
Time words and phrases
With some time words and phrases, we use the present simple to talk about the future. We don't use will or be going to.
| Time word | Example |
|---|---|
| after | I'll call you after we solve the problem. |
| as soon as | I'll call you as soon as we solve the problem. |
| before | It'll be a few days before we find the solution. |
| until / till | I won't call you until we find the solution. |
| when | It'll be great when we find the solution. |
| while | I'll be in the office while I deal with this problem. |
✓ As soon as we solve the problem, I'll call you.
Although
We use although to express contrast.
✓ Although my homework was difficult, I finished it before bed.
✓ I finished my homework before bed, although it was difficult.
In spite of / Despite
We use in spite of and despite to express contrast. They mean the same thing.
in spite of / despite + noun, subject + verb
✓ In spite of revising for hours, I didn't do well in the test.
✓ Despite my revision, I didn't do well in the test.
✓ I didn't do well in the test, despite revising for hours.
However
We use however to express contrast.
✓ We believed that we would find a solution. However, we were wrong.
✓ We believed that we would find a solution. We were wrong, however.
Unless
The word unless means if … not or except if.
Exercise A — Correct the bold phrases
The phrases in bold are wrong. Write the correct phrases.
Exercise B — Complete with verbs
Complete using the correct form of the verbs in the box.
Exercise C — Although or Despite
Circle the correct word.
Exercise D — Choose the correct answer
Choose the correct answer.
Exercise E — Rewrite with unless
Complete each second sentence so that it has a similar meaning to the first sentence.
Unless the traffic __________ bad, she'll be here at six o'clock.
Unless it __________, we'll go to the beach.
Unless __________ tired, I'll come to the party.
Unless Mrs Potts __________, we won't have a test.
We'll watch the video unless Sarah __________.
I won't buy a new pair of jeans unless Mum __________ some pocket money.
Exercise F — Choose the correct answer
Choose the correct answer.
One door leads to freedom, but which one? One guard tells the truth, but which one? I can ask one question, but what?Here's a problem for you. Imagine you're in a prison cell with two doors. There's a guard at each door. You can ask one of the guards one question, and then you can go through one door.
(1) __________ you choose the right door, you can go free. (2) __________, if you choose the wrong door, you have to stay in prison forever!
And it gets worse! (3) __________ one of the guards always tells the truth, the other one always lies. And you don't know which one tells the truth.
It's an impossible situation – isn't it? No, it's not. But (4) __________ you're extremely careful, you might choose the wrong door. And you shouldn't choose a door (5) __________ you're absolutely sure it's the door to freedom. And you'll only know it's the right door (6) __________ you ask the right question.
So – if you ever find yourself in that situation, here's what you do.
Say to one of the guards, 'If I asked the other guard which door leads to freedom, what would he say?' (7) __________ of not knowing if the guard always tells the truth or always lies, you'll always get an answer that will help you. (8) __________ you get the answer, go through the other door.
You'll be free!
