Một ô tô khối lượng 2 tấn, khởi hành trên đường ngang sau 10 s đạt vận tốc 36 km/h. Hệ số ma sát giữa
xe với mặt đường là  =0,05. Tìm công và công suất trung bình của lực kéo động cơ xe trong thời gian trên.
Lấy g=10m/s 2 .

II.Chia động từ trong ngoặc (5.0 pts)
1. They (go)......... home after they (finish)............their work.
2. The children (play).................football when their mother (come)...........back home.
3. The light (go)..................out while we ( have)...................dinner.
4. he (write)....................a book since last year.
5. How long you (learn).........................English?
6. Look! The man (run)……………….. after the train. He (want)………………… to catch it.
7. Daisy (cook)....................some food in the kitchen at present. She always (cook).....................in the
morning.
8. I (see)..................her last year
9. My cousins ( come).....................to stay with us at the weekend.
10. I (see).................that film several times because I like it.
III. Read the passage carefully and then answer the questions given.
MINES UNDER THE SEA

Man is only just beginning to realize how much he must look to the sea. It can be an important source
of food for millions of the world. When we know how much and in what way the oceans influence the
weather, we can plan the growing of crops and even work out the best time to take our holidays.
But when we get to the bottom of the sea, we find things that no one dreamed existed until recently.
Lands which were covered with water when the ice melted at the end of the ice age are rich in minerals. Off
the south African coasts, for example, is a place where there are five times the number of diamonds as in the
mines on the land.
Oil is brought from the bottom of the Caspian sea.
Sand with gold in it has been found off Thailand and Indonesia.
But if man wants to continue gathering riches from the sea, he is going to have to look after it.
* Questions:
1. What is man only just beginning to realize?
…………………………………………………………………………………………………………..
2. When can we plan the growing of crops?
………………………………………………………………………………………………………
3. What do we find when we get to the bottom of the sea?
…………………………………………………………………………………………………………..
4. What has been found off the south African coast?
…………………………………………………………………………………………………………..
5. What is man going to do if he wants to continue gathering riches from ’ the sea?
………………………………………………………………………………………………………………

Bài 9:Tổng diện tích rừng, rừng tự nhiên, rừng trồng qua các năm (Đơn vị: triệu ha)
Năm 1995 2000 2005 2007
Tổng diện tích rừng 9.3 10.9 12.7 13.1
Rừng tự nhiên 8.3 9.4 10.2 10.5
Rừng trồng 1.0 1.5 2.5 2.6
Vẽ biểu đồ thể hiện sự thay đổi tổng diện tích, rừng tự nhiên, rừng trồng qua các năm.
Nhận xét và giải thích sự thay đổi đó.

I. Chọn từ ( tương ứng với A,B,C hoặc D)có phần phát âm khác với những từ còn lại (2.5 pts)
1. A. however B. know C. follow D. show
2.A. develop B. electric C. forest D. vegetation
3. A. wanted B. decided C played D. stated
4. A. question B. contamination C. combination D. information
5. A. actual B. individual C. careful D. casual
II.Chia động từ trong ngoặc (5.0 pts)
1. They (go)......... home after they (finish)............their work.
2. The children (play).................football when their mother (come)...........back home.
3. The light (go)..................out while we ( have)...................dinner.
4. he (write)....................a book since last year.
5. How long you (learn).........................English?
6. Look! The man (run)……………….. after the train. He (want)………………… to catch it.
7. Daisy (cook)....................some food in the kitchen at present. She always (cook).....................in the
morning.
8. I (see)..................her last year
9. My cousins ( come).....................to stay with us at the weekend.
10. I (see).................that film several times because I like it.