北京市2018年中考英语试卷及答案解析(Word版)(5)

instead of helping their mom pick out fruits as the two kids did.

It was great to witness the moment, but not so great because I didn’t tell the mom how beautiful her children were in their language .this is what I regret to this day.

24. The women and her kids came to the market to buy .

A. fruits

B. vegetables

C. candies

D. toys

25. Ac cording to what he saw, the writer was sure the mother couldn’t.

A. speak

B. see

C. smell

D. hear

26. The writer was moved because .

A. the mother was brave to face her problems.

B. the kids were polite and kind to each other

C. the mother was careful in picking out things

D. the kids were so willing to help their mother

C

Some primary schoolchildren have been raised in homes with more green space around. They are likely to come with larger volumes of white and grey matter in certain areas of the brain. These differences are associated(关联) with beneficial effects on cognitive function (认知功能) . This is the main conclusion of a study led by the Barcelona Institute for Global Health.

The study was performed among 253 schoolchildren in Spain .Lifelong exposure(接触) to green space in the living places was recorded—using the information on the children’s addresses from birth up through to the time of the study. Brain structure was studied using 3D magnetic resonance imaging (MRI). Working memory and inattentiveness(注意力不集中)were graded with computers.

“This is the first study that shows the association between long-term exposure to green space and brain structure.” Says Dr. Payam Dadvand, the leading researcher of the study,“Our findings suggest that exposure to green space early in life could result in beneficial structural changes in the brain.”

The findings show that long-term exposure to greenness is positively associated with white and grey matter volumes in several parts of the brain. Some of them are related to higher scores on cognitive tests. Moreover, larger volumes of white and grey matter in those parts might lead to better working memory and less inattentiveness.

Exposure to nature has been thought to be necessary for brain development in children. Another study of 2,593 children shows that children in school with more green space have a greater increase in working memory and a