题目内容
—Morgan, could you tell me _____________?
—In the Mexican city of Cancun.
A.where did the UN Climate Change Meeting open |
B.when did the UN Climate Change Meeting open |
C.when the UN Climate Change Meeting opened |
D.where the UN Climate Change Meeting opened |
D
【解析】考查点:宾语从句。解题思路:根据宾语从句用陈述句语序排除A和B. 又由于In the Mexican city of Cancun.是表示地点的名词短语,故选择D.
Spending two or three hours playing outdoors each day can reduce(减少)a child’s chance of becoming short-sighted(近视),research shows . It challenges the belif that short-sightedness is caused by computer use , watching TV or reading in weak light .
Australian government researchers believe that sunlight is good for people’s eyes . They compared the vision (视力)and habits of 100 seven-year-old children in China and Australia .In all,30% of the Chinese children were short-sighted .This percentage was ten times higher than Australian children.
Both groups spent a similar amount of time reading, watching TV and playing computer games .However , the Australia children spent an average of two hours a day outdoors ,90 minutes more than the Chinese children.
Professor Ian Morgan said ,“Humans are naturally long-sighted ,but when people begin to go to school and spend little or no time outdoors ,the number of short-sighted peoplegets larger. We are also seeing more and more short-sighted children in cities all around the world –and the main reason may be that city children spend less time outdoors .
Daylight can be hundreds of times brighter than indoor light . But why does playing outside prevent us from becoming short-sighted ? Scientists believe that natural light has a special chemical(化学物质)which stops the eyeball from growing out of shape and prevents people from becoming short-sighted .
So go outdoors .It doesn’t matter if that time is spent having a picnic or playing sports .
根据材料内容选择最佳答案,并将其标号填入题前括号内。
【小题1】What can reduce a child's chance of becoming short-sighted according to the passage ?
A.Playing computer games. |
B.watching TV. |
C.Reading books. |
D.Spending 2 or 3 hours playing outside every day. |
A.百分比 | B.功率 | C.平均分 | D.效率 |
A.2 hours. | B.90 minutes. | C.1 hour. | D.30 minutes. |
A.Why people become short-sighted. |
B.Why natural light has a special chemical. |
C. Why playing outside is good for one's eyesight. |
D. Why daylight is much brighter than indoor light. |
A.People will all become short-sighted after they begin to go to school. |
B.Playing outdoors for 2 or 3 hours every day can help protect your eyesight. |
C. Children in Australia are more likely to become short-sighted than those in China. |
D. lf you spend 2 or 3 hours playing outside each day, you will become short-sighted. |