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Đọc kỹ đoạn văn sau và trả lời các câu hỏi hoặc hoàn thành các câu dưới đây (bằng cách chọn phương án đúng nhất, ứng với A hoặc B, C, D) từ câu 41 đến câu 45
Long ago, scientists studied the viruses that cause diseases. They found out that after a person has had a disease, he seldom gets it again. He is said to be immune to that disease. This means that his body has developed a way of fighting the germs. However, people do not seem to become immune from colds. This fact puzzled the scientists for some time.
The scientists already knew that the cold is caused by a very tiny kind of germ called a virus. Therefore, they tried to capture cold virus. They wanted to study it in the laboratory. They knew that if they succeeded, they would be able to find a cure for colds.
Finally, a scientist did manage to grow cold germs in a laboratory. He discovered that there are a hundred kinds of cold viruses. Each of them can cause people to have colds. If a person becomes immune from some, there are still many others that can infect him.
Fortunately, a person develops more immunities as he grows older. That is why adults are less likely to catch cold than children.
Câu hỏi:Why don’t people become immune from colds?
- A. Because people are not healthy.
- B. Because the virus is strong.
- C. Because the germs are too small.
- D. Because there are many kinds of cold viruses.
Lời giải tham khảo:
Đáp án đúng: D
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CÂU HỎI KHÁC
- - '……………” - 'I'm fine. Thanks'
- Who ……… with you to the party yesterday?
- Mary searched all over the house ……… she could not find the key.
- We are incapable of ……… the work on time.
- English is a …………… easy language to learn.
- The reason ………… I’m calling was that I didn’t know your address.
- I wish I ……… speak Spanish.
- - I’d like the blue jacket, can I try it on?”
- I can’t believe ……… you. You always let me down.
- If it rained heavily, the fields ……… flooded now.
- - Do you mind watching the Rainbow movie with us?”
- Would you like ……… apple?
- People do not know the value of health …………… they lose it.
- - Happy birthday! This is a small present for you.” - ……………”
- Did the man say he ………... already sent the application form?
- During the interview you should concentrate on ……… the interviewer is saying.
- Some people say that Sue is unfriendly, but she is always very nice ……… me.
- You should read a label on a product, it can give you some useful ……… .
- I’m considering ……… home now.
- - What would you like to drink?” - ……………
- I usually watch TV in the evening ……… I have to study for an examination.
- I like ………… best because I enjoy working with numbers.
- Remember ……… some presents for Mum on her birthday, Dad.
- He works very hard. It’s not ……… that he’s always tired.
- The students are in the lecture hall ………… to a lecture on history.
- People may be used wind power to serve their life in the future.
- Could you delivery the goods to my house?
- Much people agree that we should protect the environment.
- Basketball has become increasingly popular from 1891.
- His parents advised him to studying hard for his exams.
- Why don’t people become immune from colds?
- Which of these people are most likely to have cold?
- A person becomes immune against a disease ……………………… .
- By growing germs in the laboratory, the scientists discovered that ………………… .
- The word fact” in line 4 refers to …………………… .
- I am going to Paris next week,” said Jim.
- People have discovered a new source of energy.
- ……………………… you take a map.
- The man ………………………… on the plane talked all the time.
- The cyclist …………………………… he crossed the main street.
