Question

Up to 90％ of school leavers in major Asian cities are suffering from short-sightedness, a study suggests.Researchers say the “extraordinary rise’’ in the problem is being caused by students working very hard in school and missing out on outdoor light．

    According to Professor Ian Morgan, who led this study and is from the Australian National University. 20-30％was once the average among people in South East Asia as well．“What we’ve done is write a review of all the evidence which suggests that something extraordinary has happened in east Asia in the last two generations，”he told BBC News．

    Eye experts say that you are short-sighted if your vision is blurred（使模糊不清） beyond 2m．It is often caused by an elongation（伸長）of the eyeball that happens when people are young．According to the research，the problem is being caused by a combination of factors——a commitment to education and lack of outdoor light．

    Professor Morgan argues that many children in South East Asia spend long hours studying at school and doing their homework．This in itself puts pressure on the eyes, but exposure to between two and three hours of daylight acts as a counterbalance（抗衡)and helps maintain healthy eyes．

Cultural factors also seem to play a part．Across many parts of South East Asia，children often have a lunchtime nap.According to Professor Morgan ，they are missing out on prime light to prevent short-sightedness．

“Children suffer from a double whammy（致命的打擊）in South East Asia，”says Professor Morgan. As a result of massive educational pressures and the construction of a child’s day，the amount of time they spend outside in bright light is limited．”

A big concern is the numbers of students suffering from“high”short-sightedness．According to Professor Morgan，this affects between 1 0％and 20％of students in Asian cities．It can lead to vision loss，visual impairment and even blindness．

“These people are at considerable risk---sometimes people are not told about it and are just given more powerful glasses---they need to be warned about the risk and given some self-testing  measures so they can get to an ophthalmologist（眼科醫(yī)生） and get some help．”

For decades, researchers believed there was a strong genetic component to the condition. It was believed that people from China，Japan，South Korea and other countries were particularly likely to develop short-sightedness．But this study strongly suggests an alternative view．

72. From the text, we can know that_______.

A .this study suggests that gene(基因)is closely linked with short-sightedness.

B. short-sightedness can lead to blindness.

C. those who suffer from “high” short-sightedness can recover their eyesight if they are given more powerful glasses.

D. China has the largest number of short-sighted people in the world.

73. What is implied in the text?

A . Pro. Morgan approves of what most short-sighted people do with their short-sightedness.

B. If you are short-sighted, you can’t see things clearly beyond 2m.

C. According to Professor Morgan, staying in the sunshine instead of taking a lunchtime nap is good for preventing short-sightedness

D. The reasons for Asian children’s short-sightedness are commitment to education and lack of outdoor light.

74. What’s the author’s attitude towards the study result?

A. Objective      B. Subjective     C. Negative      D. Positive

75. What would be the best title for the text?

A. The research result of Asian children’s short-sightedness.

B. The phenomenon of Asian children’s short-sightedness.

C. The reasons for Asian children’s short-sightedness.

D. The ways to get rid of short-sightedness.

Answer 1

 BCAC