甘肃省天水市一中2018届高三上学期第四次阶段(期末)考试英语试题及答案

Studies have found that kids are less likely to be into reading if they have not developed such a habit before the age of 10. That said, it is in their best interests to adopt targeted reading during childhood, as this can greatly improve their comprehension abilities. So greater efforts should be put into designing a book classification system that meets the needs of young readers.

8. A proper book classification system should ________. A. be on an age basis

B. limit readers to one or two categories

C. help readers get books suitable for their reading levels D. benefit all the bookstores and publishers

9. What does the underlined word “them” in Paragraph 5 refer to? A. Young children. B. Publishers. C. Reading levels. D. Reading habits.

10. What do we know from Paragraph 5?

A. There is a strong case for resisting book classification. B. Everyone doesn’t support a more effective book classification. C. Youngsters should be restricted to a few categories of books. D. Youngsters don’t need to read extensively.

11. What’s the author’s attitude towards the current book classification system? A. Dissatisfied. B. Ambiguous. C. Supportive. D. Unconcerned.

D

Do you live in a city where looking up the air quality forecast is just as important as checking the weather forecast for the day? Many places around the world have terrible pollution problems. But now new research suggests that we might be able to protect ourselves, naturally and easily-simply by taking vitamin

B.

The study was conducted by a team of international researchers. Their focus was on a pollutant known as PM2.5. Its size, approximately 140th the width of a human hair, makes it particularly dangerous because it is readily inhaled and small enough to spread through the body via the blood. This can cause damage to the lungs if PM2.5 is being breathed in regularly.

The current experiment involved subjects being exposed to clean air and a placebo(安慰剂)to record baseline responses. They were given the placebo for four weeks, then exposed through a face mask to air from a highly polluted area in downtown Toronto. The researchers measured methylation (甲基化) changes to DNA; the damage increased in each participant. However, in the repeated experiment, when the volunteers were given a vitamin supplement containing 1 milligram of vitamin B12, 50 mg of vitamin B6, and 2.5 mg of folic acid daily for four weeks, it reduced the damage to the DNA by a range of 28 to 76 percent.

The results indicate how prevention at an individual level could be used to fight the armful effects of PM2.5. However, researchers stressed that research was in its early stages. Future studies, especially in heavily polluted areas, are urgently needed and they'll finally develop preventive measures using B vitamins to prevent the health effects of air pollution.

12. What does the underlined word \ A. breathed B. smelt C. approached D. discovered

13. How does the author introduce the current experiment? A. By analyzing causes B. By giving examples C. By making comparisons D. By describing effects

14. What can we learn about the researchers in the last paragraph? A. They warned people of heavy pollution.

B. They regretted not using enough volunteers C. they'll soon find more ways to test B vitamins D. they'll confirm the findings in highly polluted areas 15. What can be the best title of the text? A. PM2.5 Is Most Deadly B. Vitamin B Benefits People Most C. Vitamin B Offers Air Pollution Protection D. Air Quality Forecast Is Extremely Important 第二节(共5小题,每小题2分,满分10分)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。 Empty nest syndrome(综合症)is a phenomenon in which parents experience feelings of sadness and loss when the last child leaves home. You might find it difficult to suddenly have no children at home who need your care. 16 . If you have only one child, you might have a particularly difficult time adjusting to an empty nest

17 . In the past, research suggested that parents dealing with empty nest syndrome experienced a sense of loss that might make them easy to experience depression, alcoholism and identity crisis. 18 . When the last child leaves home, parents have a new opportunity to improve the quality of their marriage and restart interests for which they previously might not have had time.

If you're experiencing feelings of loss due to empty nest syndrome, take action. 19 . This might be a good time to explore or return to hobbies, leisure activities, or career pursuits.

Many suggest preparing for an empty nest while your children are still living with you. 20 . They may include family vacations, long talks, and taking time off from work to make special memories. Also, make specific plans for the extra money, time, and space that will become available when children are no longer living at home.

A. what's the impact of empty nest syndrome? B. You might also worry about your children's safety. C. What can parents do to deal with empty nest syndrome?

D Make plans with the family while everyone is still under the same roof

E. Social support can be incredibly helpful during times of stress and loneliness

F. For example, time and energy that you directed toward your child can now be spent on different

areas of your life

G. However, recent studies suggest that an empty nest might reduce work and family conflicts, and

provide parents with many other benefits

第二部分 英语知识运用（共两节，满分45分）

第一节 完形填空（共20小题；每小题1.5分,满分30分）

阅读下面短文,从短文后各题所给的四个选项（A、B、C和D）中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

Grandma celebrated grandpa's birthday just days before he passed away. Although his 21 was very difficult for her, I think it taught grandma that good health was not to be taken 22 , and she made up her mind to live the rest of her own life as 23 and as long as she could. One day, when she 24 to attend dancing lessons, we rolled our eyes in 25 and helplessly wished she would just stay home and 26 cookies as normal grandmothers did. Many years filled with countless dance lessons passed 27 we learned to appreciate the wonder of having a 28 grandma.

I suppose grandma's primary motivation for dancing was social. She had been a 29 girl, always very tall and heavy, and had married into grandpa's quiet lifestyle before 30 any elegance or confidence in her personal appearance. Dancing, 31 , filled her life with flash lights, wonderful parties, beautiful dresses, and the challenge of learning. 32 the weekly dance lessons did not change her ample, two-hundred-pound figure, grandma 33 everyone with energetic performances on the dance floor, 34 soon gave her as much elegance and confidence as any Miss American competitor.

Having taken dance lessons for years, my grandma learned various dances 35 and was soon participating in dancing 36 all over the Northwest. When I was fourteen, grandma 37 invited me to watch her compete in one of these matches. My attitude was 38 unenthusiastic at that point, but to make her happy, my mother and I attended the match. As if to prove me wrong, grandma made a wonderful showing in every 39 she entered. I thought she was truly the queen of the ball during the dance, and my thoughts were shared by the 40 a short time later when she was awarded a gold cup for her outstanding performance.