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Câu hỏi: 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 25 to 29.
Mobile phones emit microwave radio emissions. Researchers are questioning whether exposure to these radio waves might (25) __________ to brain cancer. So far, the data are not conclusive. The scientific evidence does not enable us to say with certainly that mobile phones are categorically
(26) __________. On the other hand, current research has not yet proved clear adverse effect associated with the prolonged use of mobile phones.
Numerous studies are now going on in various countries. Some of the results are contradictory but others have shown an association between mobile phone use and cancer. (27) __________ , these studies are preliminary and the issue needs further, long - term investigation.
(28) __________ the scientific data is more definite, it is prudent for people to try not to use mobile phones for long periods of time. Don't think that hands free phones are any safer either. At the moment, research is in fact showing the (29) __________ and they may be just as dangerous. It is also thought that young people whose bodies are still growing may be at particular risk.
The word or phrase which best fits the gap (27) is...
A. While
B. Though
C. Additionally
D. However
Mobile phones emit microwave radio emissions. Researchers are questioning whether exposure to these radio waves might (25) __________ to brain cancer. So far, the data are not conclusive. The scientific evidence does not enable us to say with certainly that mobile phones are categorically
(26) __________. On the other hand, current research has not yet proved clear adverse effect associated with the prolonged use of mobile phones.
Numerous studies are now going on in various countries. Some of the results are contradictory but others have shown an association between mobile phone use and cancer. (27) __________ , these studies are preliminary and the issue needs further, long - term investigation.
(28) __________ the scientific data is more definite, it is prudent for people to try not to use mobile phones for long periods of time. Don't think that hands free phones are any safer either. At the moment, research is in fact showing the (29) __________ and they may be just as dangerous. It is also thought that young people whose bodies are still growing may be at particular risk.
The word or phrase which best fits the gap (27) is...
A. While
B. Though
C. Additionally
D. However
- While: trong khi
- Though = Although, Even though: mặc dù
- Additionally: thêm vào đó = In addition, Moreover
- However: tuy nhiên
"Some of the results are contradictory but others have shown an association between mobile phone use and cancer. However, these studies are preliminary and the issue needs further, longterm investigation." (Một số kết quả thì trái ngược nhưng một số khác chỉ ra sự liên kết giữa việc sử dụng điện thoại với bệnh ung thư. Tuy nhiên, những nghiên cứu này là sơ bộ, cần được điều tra lâu dài.)
- Though = Although, Even though: mặc dù
- Additionally: thêm vào đó = In addition, Moreover
- However: tuy nhiên
"Some of the results are contradictory but others have shown an association between mobile phone use and cancer. However, these studies are preliminary and the issue needs further, longterm investigation." (Một số kết quả thì trái ngược nhưng một số khác chỉ ra sự liên kết giữa việc sử dụng điện thoại với bệnh ung thư. Tuy nhiên, những nghiên cứu này là sơ bộ, cần được điều tra lâu dài.)
Đáp án D.