Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.

Choose the best answer to complete each sentence.

You risk losing your job if your boss______ you weren’t really ill.

3 Study the Grammar box. Find more examples of conditionals in the dialogue.

(Nghiên cứu hộp ngữ pháp. Tìm thêm ví dụ về câu điều kiện trong đoạn hội thoại.)

4 Complete the sentences using the correct form of the verbs in brackets.

(Hoàn thành câu sử dụng dạng đúng của động từ trong ngoặc.)
1 If Sara had (have) enough time, she would show (show) me how to use the telescope.

(Nếu Sara có đủ thời gian, cô ấy sẽ chỉ cho tôi cách sử dụng kính thiên văn.)
2 If you         (be) in space, you          (experience) weightlessness.
3 If we          (not have) a science test tomorrow, we          (not feel) stressed.
4 What          you          (do) if you          (see) an UFO?
5 If I          (be) you, I          (use) the binoculars to look for the comet.
6 If the weather          (be) clear tonight, we          (see) the stars.
7 If space exploration          (be) less expensive, I          (travel) to space.
8 If humans          (live) on other planets, we          (solve) the problem of overpopulation on Earth.
9 If the rocket engine          (fail), the spacecraft          (not launch).

5 In pairs, complete the sentences to make them true for you.

(Làm theo cặp, hoàn thành các câu để làm cho chúng đúng với bạn.)
1 I’ll do my homework this evening unless …

(Tôi sẽ làm bài tập về nhà tối nay trừ khi…)
2 I get really cross if …

(Tôi thực sự tức giận nếu…)
3 If the weather is good tomorrow, …

(Nếu ngày mai thời tiết tốt,…)
4 I would feel very excited if …

(Tôi sẽ cảm thấy rất phấn khích nếu…)

3 Study the Grammar box. Find more examples of the Third Conditional in the interview.

(Nghiên cứu hộp ngữ pháp. Tìm thêm ví dụ về Câu điều kiện thứ ba trong cuộc phỏng vấn.)

4 Match 1–3 with a–c to make sentences.

(Nối 1–3 với a–c để tạo thành câu.)
1 If the lander had had more solar power,

(Nếu tàu đổ bộ có nhiều năng lượng mặt trời hơn,)
2 The Rosetta mission would have been quicker

(Nhiệm vụ Rosetta sẽ nhanh hơn)
3 If the European Space Agency hadn’t spent millions of euros,

(Nếu Cơ quan Vũ trụ Châu Âu không chi hàng triệu euro,)
a if the comet had been nearer to Earth during the mission.

(liệu sao chổi có ở gần Trái đất hơn trong sứ mệnh hay không.)
b the scientists would have gathered more data.

(các nhà khoa học sẽ thu thập được nhiều dữ liệu hơn.)
c the Rosetta Mission wouldn’t have happened.

(Sứ mệnh Rosetta sẽ không xảy ra.)

5 Complete the Third Conditional sentences in the article using the correct form of the verbs in brackets.

(Hoàn thành các câu điều kiện loại 3 trong bài bằng cách sử dụng dạng đúng của động từ trong ngoặc.)
Did you know some people believe that astronauts have never landed on the moon? They believe NASA faked the landing. Here are some of their reasons. They say that the flag wouldn’t have waved (not wave) if the astronauts 2                  (film) it on the moon because there is no air on the moon. They also think some stars 3                   (be) visible if the astronauts 4               (take) the photos on the moon. Another mystery is that although we can see the astronauts’ footprints on the surface, we can’t see any traces of the landing module. If the module 5                   (land) on the surface of the moon, it 6                   (leave) some traces!

(Bạn có biết một số người tin rằng các phi hành gia chưa bao giờ đặt chân lên mặt trăng? Họ tin rằng NASA đã làm giả cuộc hạ cánh. Dưới đây là một số lý do của họ. Họ nói rằng lá cờ sẽ không vẫy nếu các phi hành gia... nó ở trên mặt trăng vì không có không khí trên mặt trăng. Họ cũng nghĩ rằng một số ngôi sao .... có thể nhìn thấy được nếu các phi hành gia ... chụp những bức ảnh trên mặt trăng. Một bí ẩn khác là mặc dù chúng ta có thể nhìn thấy dấu chân của các phi hành gia trên bề mặt nhưng chúng ta không thể nhìn thấy bất kỳ dấu vết nào của mô-đun hạ cánh. Nếu mô-đun... trên bề mặt mặt trăng, nó... có dấu vết!)

6 Complete the sentences to make them true for you.

(Hoàn thành các câu để làm cho chúng đúng với bạn.)
1 If I hadn’t come to this school, …

(Nếu tôi không đến ngôi trường này,..)
2 If I hadn’t met my best friend, …
(Nếu tôi không gặp được người bạn thân nhất của mình,…)

3 If I had learned how to …

(Nếu tôi đã học được cách…)
4 If I had been born in a different country, …
(Nếu tôi sinh ra ở một đất nước khác,…)

Choose the best answer to complete each sentence.

______ if you want to see the manager.

Choose the best answer to complete each sentence.

If she _______ to know more about it, she will need to spend more time.

Choose the best answer to complete each sentence.

I am sure that if we persuade them, they _______  their bad lifestyle.

Find one error in each of the following sentences (A, B, C or D)

The majority of countries are very concerned that if whaling does not stop or else nearly all the whales will disappear.

1. Choose the correct words.

(Chọn từ đúng.)

3. Complete the sentences with the first or second conditional form of the verbs in brackets.

(Hoàn thành câu bằng dạng câu điều kiện loại một hoặc loại hai của động từ trong ngoặc.)

If I invented (invent) the most intelligent robot in the world, I’d be (be) really famous!

1. We _____ (visit) the science museum tomorrow unless the weather _____ (be) bad.

2. I _____ (not be) surprised if astronauts _____ (go) to Jupiter in the next sixty years.

3. Unless Monica _____ (study) for her science exam, she _____ (do) badly - just like last year.

4. What _____ (people / do) if a big meteor suddenly _____ (hit) the Earth?

5. He _____ (not win) the competition next week unless he _____ (change) his design.

5. Complete the sentences with conditionals or wish form and your own ideas.

(Hoàn thành câu bằng câu điều kiện hoặc câu mong muốn và ý tưởng của riêng bạn.)

Humans wish they could perform time travel in the near future.

1. I wish medicine experts _____________________________________

2. Unless scientists do experiments, ______________________________

3. If I travelled to the moon, ____________________________________

4. Water evaporates if _________________________________________

3. Write the sentences with the zero, first or second conditional.

(Viết các câu sử dụng câu điều kiện loại 0, loại 1 hoặc loại 2.)

unless / we / read / this book, / we / not understand / the discovery (1^st)

Unless we read this book, we won't understand the discovery.

1. I / not be afraid / if / I / meet / an alien (2^nd)

2. if / you / mix / red and blue, / it / make / purple (zero)

3. they / not produce / that new invention / unless / it / be / cheap (1^st)

4. If / he / speak / German, / he / will / spend a year / working there (2^nd)

5. if / you / see / a meteor, / what / you / do / ? (2^nd)

1. Choose the correct option.

(Chọn phương án đúng.)

1. If the rocket launches / launched at the right time, it will reach the moon in six weeks.

2. You won't see the comet unless / if you have a good telescope.

3. I always watch Star Watch if it's / it will be on TV.

4. I wouldn't go into space if you pay / paid me!

5. Would you study astronomy if you have / had the chance?

6. If the weather isn't good, you won't see / will see the planet clearly.

2. Order the words in brackets to complete the sentences.

(Sắp xếp các từ trong ngoặc để hoàn thành câu.)

1. If you want to be an astronomer, _______________ (physics / need / study / to / you).

2. I'd come to the party _______________ (an exam/if/tomorrow/ have /1/ didn't).

3. _______________ (out/Kate/go/won't / unless) the weather improves.

4. _______________ (with us / if / want / you / to / come), I'll give you a lift.

5. If students fail the exam, _______________ (again/can/it/ take / they).

6. If you could go anywhere in the world, _______________ (go/ you / where / would)?

3. Complete the interview with an astronaut with the correct form of the verbs in brackets.

(Hoàn thành bài phỏng vấn với một phi hành gia bằng cách chia động từ trong ngoặc ở dạng đúng.)

Interviewer: Good afternoon, Colin. How are the preparations for the next mission going?

Astronaut: Very well, thanks. If the weather(1) _______ (be) good, we'll leave Earth on Friday, then if everything goes well, we (2) _______ (reach) the space station in two days.

Interviewer: Could anything go wrong?

Astronaut: Of course. For example, the weather might be bad. If that happened, we (3) _______ (wait) until it got better. Also, if any of the rocket's systems (4) _______ (fail), we would use the emergency spacecraft to return to Earth.

Interviewer: Well, let's hope everything goes well. What do people need to do if they (5) _______ (want) to see the space station from Earth?

Astronaut: Well, you (6) _______ (not see) the space station unless you have a good telescope. If you want to know when it passes over your area, (7) _______ (check) on our website.

Interviewer: Thanks very much, Colin, and good luck!

4. Use the prompts to write conditional sentences. Use the words in brackets.

(Sử dụng lời nhắc để viết câu điều kiện. Sử dụng các từ trong ngoặc.)

1. If / I / have / enough money /I/ buy / telescope (would)

______________________________________________________________

2. if /rain /weekend /we / visit /planetarium (we'll)

______________________________________________________________

3. I / travel / more / if / have / more time (had)

______________________________________________________________

4. if / the computer / get / too hot /switch / it / off (gets)

______________________________________________________________

5. my parents / not happy / if / I / not pass / my exams (won't)

______________________________________________________________

5. Complete the text with the correct form of the verbs in brackets.

(Hoàn thành văn bản bằng dạng đúng của động từ trong ngoặc.)

Build your own telescope

If you want (1) _______ (want) to see the stars and planets, you (2) _______ (can) make your own telescope. All you need is a cardboard tube - the ones you (3) _______ (use) if you want to send a poster by mail - and a couple of lenses. Make sure you cut the tube very straight. This is important, as you (4) _______ (not be able to) change the focus unless it (5) _______ (be) absolutely straight. Then attach the lenses inside the tube. You can just slide them in, but if you (6) _______ (need) to make them secure, glue them in carefully. Finally, cover the other end of the tube with card and make a small hole in the end to look through. Now you're ready to look at the stars! It's not the world's most powerful telescope, but if you (7) _______ (use) it on a clear night, you will get some good views. If I (8) _______ (not have) mine, I wouldn't see so much of the night sky.

3. Choose the correct option. Then mark each sentence 0 (Zero Conditional), 1 (First Conditional), 2 (Second Conditional) or 3 (Third Conditional).

(Chọn phương án đúng. Sau đó đánh dấu mỗi câu 0 (Câu điều kiện số 0), 1 (Câu điều kiện loại 1), 2 (Câu điều kiện loại 2) hoặc 3 (Câu điều kiện loại 3).)

1. If we have / had more money, we'd go to a space camp. _______

2. If I'm not too tired after school, I usually go / went cycling in the park. _______

3. I wouldn't meet / have met Alice if I hadn't gone to the party. _______

4. Tina won't come / will come to the picnic unless the weather is good. _______

5. You look ill. I wouldn't go out today if I am / were you. _______

6. If my team would win / wins the championship, I'll dance in the street! _______

4. Complete the text with the correct form of the verbs in brackets.

(Hoàn thành văn bản bằng dạng đúng của động từ trong ngoặc.)

When I'm older, I want to be an astronaut. I'm sure if I work really hard, I (1) _______ (achieve) my dream one day. It's all I think about at the moment! If I have any free time, I (2) _______ (study) physics or read about space technology online. When people ask me, 'What would you do if you (3) _______ (win) the lottery?' the answer is easy: I (4) _______ (buy) a tourist ticket to travel to space! I know I (5) _______ (not have) a chance unless I'm physically fit too. So if the weather's good at weekends I (6) _______ (play) sport or (7) _______ (go) running. What about you? If you could do any job at all, what (8) _______ (you/do)?

Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.

Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.

Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.

Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.

Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.

Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.

Give the correct form of verbs in the brackets using Conditional sentence type 1 and 2.