Câu hỏi:
07/02/2021 2,085Read 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 will happen if smog stays close to the ground ?
Sách mới 2k7: Bộ 20 đề minh họa Toán, Lí, Hóa, Văn, Sử, Địa…. form chuẩn 2025 của Bộ giáo dục (chỉ từ 49k/cuốn).
Quảng cáo
Trả lời:
Đáp án
C
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 2:
By learning English, you can get access.....the world's development.
Câu 3:
Rewrite the following sentences beginning as shown, so that the meaning remains the same.
Tim will be eighteen next week.
It's Tim's..............................................
Câu 4:
Mark the letter to indicate the most suitable response.
"Let me congratulate you on winning the first prize."- "____________"
Câu 5:
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
Câu 6:
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.
Câu 7:
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
Bộ 40 đề thi Tiếng Anh vào 10 có đáp án - Đề 1
Bộ 20 đề thi Tiếng Anh vào 10 có đáp án cực hay (Đề 1)
Bộ 40 đề thi Tiếng Anh vào 10 có đáp án - Đề 9
Đề thi vào lớp 10 môn Tiếng Anh Hà Nội 2015 có đáp án
Bộ 20 đề thi vào 10 môn Tiếng anh có đáp án - Đề 1
Bộ 20 đề kiểm tra Tiếng Anh thi vào 10 có đáp án - Đề 1
Đề thi Tiếng Anh 9 Thí điểm Học kì 1 có đáp án (Đề 3)
Bộ 40 đề thi Tiếng Anh vào 10 có đáp án - Đề 2
Hãy Đăng nhập hoặc Tạo tài khoản để gửi bình luận