Bài 4: Hoàn thành các câu hỏi sau:

1. How/ you/ go to school/ ?

- How do you go to school?

2. what/ you/ do/ ?

___________________________________ ?

3. where/ John/ come from/ ?

___________________________________ ?

4. how long/ it/ take from London to Paris/ ?

___________________________________ ?

5. how often/ she/ go to the cinema/ ?

___________________________________ ?

6. when/ you/ get up/ ?

___________________________________ ?

7. how often/ you/ study English/ ?

___________________________________ ?

8. what time/ the film/ start/ ?

___________________________________ ?

9. where/ you/ play tennis/ ?

___________________________________ ?

10. what sports/ Lucy/ like/ ?

___________________________________ ?

Bài 3: Hoàn thành các câu sau: (Chuyển sang câu phủ định)

1. She feeds the animals. - She __________________ the animals.

2. We take photos. - We ______________ photos.

3. Sandy does the housework every Thursday. - Sandy _____________ the housework every Thursday.

4. The boys have two rabbits. - The boys ___________ two rabbits.

5. Simon can read English books. - Simon ___________ read English books.

6. He listens to the radio every evening. - She ___________ to the radio every evening.

7. Annie is the best singer of our school. - Annie __________ the best singer of our school.

8. The children are at home. - The children ___________ at home.

9. The dog runs after the cat. - The dog __________ after the cat.

10. Lessons always finish at 3 o'clock. - Lessons _________________ at 3 o'clock.

Exercise 2: Cho dạng đúng của động từ trong ngoặc

1. Be careful! The car (go) ………………….. so fast.

2. Listen! Someone (cry) ………………….. in the next room.

3. Your brother (sit) ………………….. next to the beautiful girl over there at present?

4. Now they (try) ………………….. to pass the examination.

5. It’s 12 o’clock, and my parents (cook) ………………….. lunch in the kitchen.

6. Keep silent! You (talk) ………………….. so loudly.

7. I (not stay) ………………….. at home at the moment.

8. Now she (lie) ………………….. to her mother about her bad marks.

9. At present they (travel) ………………….. to New York.

10. He (not work) ………………….. in his office now.

Bài 2: Chọn đáp án đúng.

1. I don’t stay/ doesn’t stay at home.

2. We don’t wash/ doesn’t wash the family car.

3. Doris don’t do/ doesn’t do her homework.

4. They don’t go/ doesn’t go to bed at 8.30 p.m.

5. Kevin don’t open/ doesn’t open his workbook.

6. Our hamster don’t eat/ doesn’t eat apples.

7. You don’t chat/ doesn’t chat with your friends.

8. She don’t use/ doesn’t use a ruler.

9. Max, Frank and Steve don’t skate/ doesn’t skate in the yard.

10. The boy don’t throw/ doesn’t throw stones.

Bài 1: Chia động từ trong ngoặc ở Thì hiện tại đơn.

1. I (be) ________ at school at the weekend.

2. She (not study) ________ on Friday.

3. My students (be not) ________ hard working.

4. He (have) ________ a new haircut today.

5. I usually (have) ________ breakfast at 7.00.

6. She (live) ________ in a house?

7. Where (be)____ your children?

8. My sister (work) ________ in a bank.

9. Dog (like) ________ meat.

10. She (live)________ in Florida.

11. It (rain)________ almost every day in Manchester.

12. We (fly)________ to Spain every summer.

13. My mother (fry)________ eggs for breakfast every morning.

14. The bank (close)________ at four o'clock.

15. John (try)________ hard in class, but I (not think) ________ he'll pass.

16. Jo is so smart that she (pass)________ every exam without even trying.

17. My life (be)_____ so boring. I just (watch)________ TV every night.

18. My best friend (write)________ to me every week.

19. You (speak) ________ English?

20. She (not live) ________ in HaiPhong city.

21. She (not study) ………. on Saturday.

22. He (have) ………. a new haircut today.

23. I usually (have) ……….breakfast at 6.30.

24. Peter (not/ study)……….very hard. He never gets high scores.

25. My mother often (teach)……….me English on Saturday evenings.

26. I like Math and she (like)……….Literature.

27. My sister (wash)……….the dishes every day.

28. They (not/ have)……….breakfast every morning.

S = 1001 + 1003 + 1005 + ....... + 2015

S = \(\frac{\left(2015+1001\right)x\left[\left(2015-1001\right):2+1\right]}{2}\)

S =              766064

Gọi chiều cao hình tam giác là a => độ dài đáy hình tam giác là 2 x a

Theo bài ra , ta có :

                      S =    2 x a x a : 2 = 4

 => a x a = 4

<=> a x a = 2 x 2

=> a =2

Vậy chiều cao của hình tam giác đó là 2m = 20dm