Ex6: Rewrite the following sentences.

1.We will plant more trees. The air will be fresher.

-> If we………………………………………………………………………......

2.  We will use fewer cars. We will reduce pollution.

-> If we…………………………………………………………...........................

3. We will cycle to school every day. We will keep fitter.

-> If we……………………………………………………………………………

4. We will use recycled products. We will save money.

-> If we…………………………………………………………………………....

5. People will throw rubbish into the right bin. They will keep the environment clean.

-> If we…………………………………………………………………………

6.We will turn off the tap when brushing the teeth. We will save a lot of water.

-> If…………………………………………………………………………….

7.People will travel more by public transport. The harmful gases in big cities will be reduced.

-> If……………………………………………………………………………

8.The boy eats so may green apples. He will be ill.

-> If………………………………………………………………………………

9.You should work hard, or you won’t pass the exam.

→If……………………………………………………………………………………

10.Henry fails his examination. His parents will be sad.

→If ………………

Exercise 5: Choose the correct word.

1. If we miss/ will miss the bus, we take/ will take the taxi.

2. I come/ will come over to your house if you rent/ will rent a DVD.

3. They see/ will see the new Lara Croft film if they go/ will go to the cinema.

4. She goes/ will go to the party if you invite/ will invite her.

5. You are/ will be on time if you run/ will run.

6. If you help/ will help me, I lend/ will lend you that Bey once CD.

 Exercise 1: : Put the verbs in brackets in the first condition.

1. If you (read)……………..in bad light you ( ruin) …………….your eyes.

2. If you ( see)……………….him, (tell)…….him to ring me up.

3. If you ( not change)………..your wet clothes, you ( have)……………a cold.

4. I (take) …………….my umbrella if it ( rain)………….this afternoon.

5. What I (do)………………if the train (be)…….late?

6. I ( return)……………….next week if you ( want)…………….me to.

7. I (be)…………sorry if they ( not come)

8. I can’t do anything if I (not feel)…………very comfortable.

9. If we ( want)………..your opinions, we (ask)…………for them.

10. If you (come)………….late, the teacher(not let)…………..you in.

I.                   Put the verbs in the correct tenses

1.      He (go) home late last night

2.      Sometimes she (cycle) to work but today she (ride) a motorbike to work

3.      We (drink) wine twice

4.      It’s the first time my mother (visit) him

5.      I (not/see) her since last week

6.      I (not/see) her last week

7.      They occasionally (wash) the dishes

8.      Her friends (not/dance) at present. They (talk)

9.      Her parents (do) aerobics everyday

10.  Where you (be) born?

I (be) born in Hanoi

II.               Vocab

1.      Con trâu

2.      Con thằn lằn

3.      Phòng khách

4.      Nhà vệ sinh

5.      Cái thảm

6.      Cái bát

7.      Cái thìa

8.      Cái chảo

9.      Cái rèm

10.  Kĩ sư

11.  Kiến trúc sư

12.  Thợ cơ khí

13.  Phi công

14.  Giám đốc

15.  Con khủng long

16.  Con tê giác

17.  Con đà điểu

18.  Con ếch

19.  Con kiến

20.  Nhà tranh

21.  Lâu đài

22.  Gác sép

23.  Cái ô

24.  Cái bình múc

Đồng hồ (treo tường, đeo tay

bài 2 : tìm x 

a, 2^x  = 8

b, 7 ³ = 7^x + 2

c, 8^{x - 1} = ( 8⁵ ) ²

d , 9 ^x+1 = 3 ⁶

e, ( x - 1 ) ⁵ = ( x - 1 ) ^{x - 2}

b, 7.7.8.5.6

c, 8 . 3³ . 8³

d, ( 7² ) ³ .3 

e, 9 : 3²

đề bài là : viết thành lũy thừa nha