Read the following passage and choose the letter A, B, C, or D to indicate the correct answer to each of the following questions.
Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication- having a mobile phone shows that they are cool and connected.
The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are connected that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are bad for your health.
On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often
A. the cells and tissues of the brain.
B. the resident memory.
C. the mobility of the mind and the body.
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Chọn đáp án A
Kiến thức: Đọc hiểu
A. các tế bào và mô của não.
B. bộ nhớ thường trú.
C. khả năng vận động của trí óc và cơ thể.
D. các động mạch của não.
Thông tin: On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment
Tạm dịch: Mặt khác, các nghiên cứu y tế đã chỉ ra những thay đổi trong tế bào não của một số người sử dụng điện thoại di động. Các dấu hiệu thay đổi trong các mô của não và đầu có thể được phát hiện bằng thiết bị quét hiện đại.
Don't worry about trying to catch last train home, as we can easily _______ you up for the night.
Read the following passage and choose the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks.
Why is it that many teenagers have the energy to play computer games until late at night but can't find the energy to get out of bed in time for school? According to a new report, today's generation of children are in danger of getting so little sleep that they are putting their mental and physical health at (1)________. Adults can easily survive on seven to eight hours' sleep a night, (2)________ teenagers require nine or ten hours. According to medical experts, one in five youngsters gets anything between two and five hours' sleep a night less than their parents did at their age.
This raises serious questions about whether lack of sleep is affecting children's ability to concentrate at school. The connection between sleep deprivation and lapses in memory, impaired reaction time and poor concentration is well established. Research has shown that losing as little as half an hour's sleep a night can have profound (3)_________ on how children perform the next day. A good night's sleep is also crucial for teenagers because it is while they are asleep (4)________ they release a hormone that is essential for their 'growth spurt' (the period during teenage years when the body grows at a rapid rate). It's true that they can, (5)_______ some extent, catch up on sleep at weekends, but that won't help them when they are dropping off to sleep in class on a Friday afternoon.
By Tim Falla and Paul A. Davies, Solutions Advanced. OUP
Experts in climatology and other scientists are becoming extreme concerned about the changes to our climate which are taking place.
Choose letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions.
I didn't understand what he was saying because I hadn't read his bookChoose the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
You should put yourself on the back for having achieved such a high score in the graduation exam.
