Unit 2 单元检测--高一英语人教版(必修3)

Unit 2 Healthy eating单元检测I. 单句改错1. Since Tom is ill, I will have John to do the job tomorrow.________________________________________________________________________2. The worker got punished because he had lied his boss.________________________________________________________________________3. Happily, I have benefited a great deal reading.________________________________________________________________________4. As we all know, everyone has his own strength and weaknesses.________________________________________________________________________5. Nothing can be good than a cup of cool drink now for me.________________________________________________________________________II. 完成句子1. 由于保持了均衡饮食，不久后他就减轻了体重。

He lost weight because______________________ before long.2. 我从来没吃过比烤腌羊肉串更美味的食物。

I have________________________ than the kebab.3. 我们不能容忍你违反规则却不受惩罚。

We can’t______________________ breaking the rules.4. 我听说老板将让那个新来的员工做这项工作。

I heard the boss __________________________ the job.5. 做运动对保持身心健康有益处。

Doing sports can ____________________________ mentally as well as physically.III. 阅读理解阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

ALow-salt diets are actually harmful to our bodies, a recent study found. These diets may actually increase the risk of developing heart disease, or even cause death. These findings, says WebMD, are contrary to the popularwisdom that low-salt diets are healthy.Scientists at McMaster University’s Population Health Research Instit ute, working with researchers from Hamilton Health Services, conducted the study. They examined medical information about 130,000 people from 49 countries. The scientists, led by Andrew Mente of McMaster University, wanted to find out if the relationship between salt, strokes and heart disease is different for those who have high blood pressure. They found that no matter whether one has high blood pressure or not, low sodium (钠) intake increased the risk of strokes, heart attacks and death. The study goes on to suggest that only certain people should be concerned about reducing sodium in their diets. ＂The findings emphasize the importance of reducing salt intake among people with hypertension(高血压) and who eat food with high levels of sodium,＂Mente said.McM aster University’s Martin O’Donnell, the study’s co-author, said in a press release, ＂This study adds to our understanding of the relationship between salt intake and health. The study also questions the correctness of present guidelines that recommend low salt intake for everyone. Low sodium intake reduces blood pressure modestly, compared to average intake, but low sodium intake also has other effects.＂The WebMD report says Elliott Antman, past president of the American Heart Association (AHA), voiced his opinion on Mente’s study. Antman says the study does not correctly measure sodium intake, and it should not make Americans stop worrying about salt. ＂The American Heart Association continues to recommend less than 1.5 grams of sodium per day from all sources,＂he said. Most Americans get more than 3.4 grams of sodium a day.1. What does the recent study indicate?A. Low-salt diets are not for everyone.B. High-salt diets have no deadly effects.C. Low-salt diets should be strongly promoted.D. High-salt d iets don’t mean high sodium intake.2. Who can benefit from low-salt diets?A. People suffering from strokes.B. People with low sodium intake.C. People developing heart disease.D. People with high blood pressure.3. What is Elliott Antman’s attitude toward the study?A. Doubtful.B. Critical.C. Indifferent.D. Supportive.BGrandparents who help out occasionally with childcare or provide support for others in their community tendto live longer than seniors who do not care for other people, according to a study from Berlin, Germany. Having full-time custody(监护) of grandchildren can have a negative effect on health, but occasional helping can be beneficial for seniors.The findings are drawn from data on more than 500 people over age 70 in the Berlin Aging Study. The participants completed interviews and medical tests every two years. The researchers did not include any grandparents who were the primary caregivers for their grandchildren, only those who cared for grandchildren occasionally. The study team compared this group with seniors who provided support for non-family members, such as friends or neighbors, and seniors who did not provide any care for other people.Overall, after accounting for grandparents’ age and general state of health, the risk of dying over a 20-year period was one-third lower for grandparents who cared for their grandchildren, compared with grandparents who did not provide any childcare.Half of the grandparents who cared for grandchildren were still alive ten years after the initial interview. The same was true for participants who did not have grandchildren but supported their adult children in some way, such as helping with housework. In contrast, about half of the participants who did not help others died within five years after the start of the study.＂Caregiving may be thought also as an activity that keeps caregivers physically and mentally active,＂said Professor Arpino, adding that previous studies suggest that caregiving may improve cognitive(认知的) functioning, mental and physical health.Arpino noted, however, that caregiving is not the only activity that can improve health, and too many caring responsibilities can take away from other beneficial activities like working, being in social clubs, or volunteering.＂Chi ldren should take into consideration their parents’ needs, willingness, and desires and agree with them on the timing and amount of childcare,＂Arpino suggested.4. What does the study from Berlin focus on?A. The problems faced by grandparents providing childcare.B. Whether grandparents should provide childcare.C. How grandparents can help out with childcare.D. The benefits of childcare on grandparents.5. What’s Arpino’s attitude toward caregiving?A. Doubtful.B. Objective.C. Negative.D. Favorable.6. Which statement may Arpino agree with?A. Grandparents are really the best choice for childcare.B. There is a growing trend toward grandparenting.C. Childcare provides more opportunities for the elder.D. Proper amounts of childcare make grandparents live longer.7. Why does the author write the passage?A. To present the findings of a study.B. To tell the senior how to live longer.C. To stress the importance of childcare.D. To give advice on looking after the aged.IV. 完形填空阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。