Read the text carefully, then choose the most suitable answers.
Smog is a combination of smoke and fog It occurs when gases from burnt fuel mix with fog on the ground. When heat and sunlight get together with these gases, they form fine , dangerous particles in the air.
Smog occurs in big cities with a lot of traffic. Particularly, in the summertime, when it is very hot, smog stays near the ground. It is dangerous to our breathing, and in smoggy areas, we cannot see very well.
Smog was first discovered in Great Britain in the 19th century, during the beginning of the Industrial Revolution. At that time, people used coal for heating and cooking. Factories also used coal to produce iron and steel. Smoke mixed with wet, foggy air and turned yellow. The smog often hung over cities for many days. It caused lung diseases and breathing problem. Thousands of people died in London every year.
Today, cities that have a large population and are located in hot, subtropical areas have the biggest smog problems - for example, Los Angeles, Mexico City and Cairo.
What probably caused the smog in Britain at the beginning of the Industrial Revolution?
A. There were too many cars in the country.
B. The weather there was too foggy.
C. People smoke a lot at that time.
D. Factories and people used coal as energy.
Đáp án
D
Gói VIP thi online tại VietJack (chỉ 400k/1 năm học), luyện tập gần 1 triệu câu hỏi có đáp án chi tiết
Circle the underlined word or phrase (A, B, C or D) that needs correcting
We are having my house paint. That is why there is all this mess
Circle the underlined word or phrase (A, B, C or D) that needs correcting
After said goodbye to my parents, I went to school with my sister
Mark the letter to indicate the most suitable response.
"Let me congratulate you on winning the first prize."- "____________"
By learning English, you can get access.....the world's development.
Circle the underlined word or phrase (A, B, C or D) that needs correcting
I think Helen is accustomed to work eight hours a day
Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.
You don't need a computer. You can get by with the typewriter.
Rewrite the following sentences beginning as shown, so that the meaning remains the same.
Tim will be eighteen next week.
It's Tim's..............................................
Rewrite the following sentences beginning as shown, so that the meaning remains the same.
John and Ann didn't tell the truth.
Neither.................................................
Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.
I fell into the water when I tried to get out of the canoe.
Circle the best option A, B, C or D to complete the sentences:
You have to pass the examination.......you want to attend the course.
Combine these two sentences into a new one using the given words in brackets.
It was raining heavily outside. We postponed the picnic. (as)
Combine these two sentences into a new one using the given words in brackets.
The girl is very beautiful. Her dress is red. (whose)
Combine these two sentences into a new one using the given words in brackets.
She learns English well. She plays sports well, too. (not only )