Một vận động viên chạy với vận tốc trung bình 15 km/h. Từ điểm xuất phát tới đích người đó phải chạy mất 2 5  giờ. Nếu bạn chạy với vận tốc 8km/h thì từ điểm xuất phát đến đích bạn phải chạy mất bao nhiêu thời gian?

Tìm x, biết:

a)  x : 3 1 5 = 1 1 2

b)  2 2 5 : x = − 1 3 5

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 3 to 7.

Back in the 1960s and 1970s, the world was becoming more aware of the destructive effects of industry (3)______ the environment and people were starting to think seriously about ways of protecting the environment. One man who was particularly affected by this subject was Gerard Morgan-Grenville. As Morgan-Grenville travelled round earning his living as a gardener, he noticed signs of the damage that was being done to the countryside around him. It wasn't long before Morgan-Grenville decided that he had to do something about this situation. He felt that if people could be shown a better way of living then maybe they would be interested enough to try to protect their (4)_____ environment.

Mr. Morgan-Grenville decided to set up a project (5) ______ would prove what was happening to our surroundings and what could be done about it. So, in 1975, Morgan-Grenville created the Centre for Alternative Technology (CAT) in a village in Wales.

The main aim of CAT is to search for an ecologically better way of living by using technology which (6) _____ no harm to the environment. One of the most important things CAT did initially was to explore and demonstrate a wide range of techniques and to point out which ones had the least destructive results on the world around us. (7)____, CAT provides information and advice to people all over Britain and all over the world. If more and more individuals are informed about how much damage our modern lifestyle is causing to the planet, maybe more of them would be prepared to look for practical solutions to environmental problems.

Điền vào ô 5.

A. that

B. he

C. it 

D. this 

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27.

Years ago, in their private family role, women quite often dominate the male members of the household. Women were quite (23)____ to their families. However, the public role of women has changed (24)______since the beginning of World War II. During the war, men were away from home to the battle. As a (25)_____women were in complete control of the home. They found themselves doing double and sometimes triple duty. They began to take over the work of their absent husbands and to work outside. They accounted for 73% of the industrial labor force.
Women were forced by economic realities to work in the factories. The women (26)______ worked there were paid low wages, lived in crowded and small dormitories. (27)______they found themselves a place as active members of society.

Điền vào ô 24.

A. unfortunately

B. approximately

C. nearly

D. dramatically

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

John is the black sleep of the family. He is currently serving 5 years in jail for stealing a car.

A. a member of a family who is regarded as a disgrace and an embarrassment.

B. a member of a family who supports family by raising sheep.

C. a member of a family who confers prestige on his family.

D. a breadwinner.

Tính:

a ,   − − 23 . − x − 265 . x + 948 = 0 b ,   − − 98 . − x − 641 . x + 431 = 0

Cho  − 21 . x − 32 = 0 . Chọn đáp án đúng

A. 0

B. 32

C. =32

D. -6

Cho phân số 25 / 37. Tìm một số tự nhiên c sao cho đêm mẫu số của phân số  đã cho trừ đi c và giữ nguyên tử số thì được phân số bằng phân số  5/6.