Exercise 9: Use a phrase or clause of purpose to combine each pair of sentences

below.

1. My father drove carefully. He didn’t want to cause accidents.
 ..........................................................................................................................
2. Sue dutifully followed her parent’s advice. She didn’t want to cause trouble for her
parents.
 ..........................................................................................................................
3. Mr Thompson is learning Vietnamese. He wishes to read the Tale of Kieu.
 ..........................................................................................................................
4. Please shut the door. I don’t want the dog to go out of the house.
 ..........................................................................................................................
5. The farmer built a high wall around his garden. The fruits wouldn’t be stolen.
 ..........................................................................................................................

8 BÀI TẬP CUỐI TUẦN TIẾNG ANH LỚP 9 – TẬP 1

6. The police stopped the traffic every few minutes. The pedestrians might cross the
road.
 ..........................................................................................................................
7. The notices are written in several languages. Everyone may understand them.
 ..........................................................................................................................
8. I wish to have enough money. I want to buy a new house.
 ..........................................................................................................................
9. Dick is practising the guitar. He can play for the dance.
 ..........................................................................................................................
10. She needs a job. She wants to support her old parents.
 ..........................................................................................................................
11. He moved the front row. He could hear the speaker better.
 ..........................................................................................................................
12. She put the meat Into the oven. She wanted it to be ready for dinner.
 ..........................................................................................................................
13. The boy stood on the benches. They wanted to get a better view.
 ..........................................................................................................................
14. We lower the volume of the radio. We don’t want to bother our neighbours.
 ..........................................................................................................................
15. I will write to you. I want you to know my decision soon.
 ..........................................................................................................................

Bài 1 : Cho tam giác ABC vuông tại A, AB = 3cm, AC = 4cm. Tính các tỉ số lượng giác của góc B và góc C

Bài 2: Cho tam giác ABC vuông tại A, có AB = 6cm, AC = 8cm, đường cao AH, trung tuyến AM. Tính các tỉ số lượng giác của góc HAM

Cho tam giác ABC vuông tại A có đường cao AH. Biết BC = 29cm, AC = 20cm

a) Tính AB, AH

b) Tia phân giác của góc HAC cắt HC tại D. Tính DC suy ra diện tích ABC

Chứng minh : A >16

A= 1/√1 + 1/√2 + 1/√3 + ...1/√80

1)Tính:

a)√5 - √15/√3 -1 +1/2+√3 - √(√5-√3)^2

b)√162 - 2√72 + 5/3√18