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1 is playing
2 write
3 am talking
4 are watching
5 visits
6 is shinning
7 read
8 is playing
9 do,go
10 gets
11 are going
12 eats
13 jumps
14 does not smoke
15 plays
16 is
17 gets,opens,
18 goes,has
19 cycles
20 goes
1 . Next year we'll probably hear a lot more about environmental pollution.(Likely)
⇒ In the next few years we'll ..........likely hear.......... a lot more about environmental pollution
2.My sister is traveling to Ho C hi Minh City by plane .(Flying)
⇒My sister ......is flying.................Ho Chi Minh City
3.I need tobuy six pencils.(Dozen)
⇒I need ........half a dozen of........................eggs
4.We do a lot of outdoor activities in summer.(In)
We take .......part in a lot of................outdoor activities in summer
5.she goes to school at six thirty.(half)
⇒She goes ......to school at half past.....................six
1 How many kilos of potatoes would you like?
2 I went fishing but I didn't catch any fish
3 Cook the chicken over low heat for 15 minutes before you serve it
4 Can you tell me how to cook broken rice?
6 He has got an egg but he hasn't got any bread
7 How much rice is left in the electric cooker?
8 Pho is one of the most popular dishes in Vietnam?
21. Why do people usually sing ?
A. They like birds. B. They feel happy.
C. They want to tell a story . D. They like studying music.
22. Which birds sing the most beautiful songs ?
A. Birds in a good temper.
B. Cock birds.
C. Hen birds.
D. Female birds which attract male birds.
23. What warnings does a bird sometimes sing ?
A. A warning to keep away.
B. A warning to come quickly.
C. A warning about the approach of people
D. A warning to stop singing.
24. What do most birds usually do if they cannot sing well ?
A. warn other birds to go away.
B. give their information in another way.
C. find a wife.
D. fly high in the sky.
25. What is one bird's unusual way of attracting a hen bird ?
A. It dances.
B. It spreads out its tail.
C. It searches for a wife.
D. It uses shells and flowers to make a garden.
Dùng phương pháp đánh giá em nhé.
Nếu p = 2 ta có: 2 + 2 = 4 (loại)
Nếu p = 3 ta có: 2 + 3 = 5; 3 + 7 = 7 (thỏa mãn)
Nếu p > 3 ta có
P = 3k + 1 hoặc p = 3k + 2
Nếu p = 3k + 1 thì p + 2 = 3k + 1 + 2 = 3k + 3 ⋮ 3 (là hợp số loại)
Nếu p = 3k + 2 thì p + 4 = 3k + 2 + 4 = 3k + 6 ⋮ 3 (là hợp số loại)
Vậy p = 3 thì p + 2 và p + 4 là số nguyên tố
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Ex7
1 D
2 E
3 F
4 A
5 I
6 J
7 H
8 B
9 G
10 C
Ex8
1 listen
2 share
3 connect
4 equipped
5 tidies
6 help
7 live
8 talk
9 look
10 access