2018版高考英语大一轮复习课时作业：必修六_Unit2Poems 含答案

课时作业(二十七)

Ⅰ.阅读理解

[2017·皖南名校联盟联考]

If drinking coffee or tea has become part of your daily routine，you might wonder what it's doing to your long－term heart health.New research from Arteriosclerosis，Thrombosis，and Vascular Biology，a journal(期刊)of the American Heart Association，found that high tea consumption and proper coffee consumption may be associated with decreased rates of death from coronary heart disease (CHD)(冠心病)．

The study followed more than37,000tea and coffee drinkers over13years.Participants completed food recalls to document their typical intake of tea and coffee，and were divided into groups that ranged from light to heavy consumption.Researchers accounted for variables(变量)such as health histories，height，weight，and waist circumference(腰围)and recorded the number of deaths from cardiovascular(心血管的)disease and stroke during the study period.

Overall results showed that consuming more than six cups of tea per day was associated with a36%lower risk of death from heart disease compared to consuming less than one cup of tea per day.There appeared to be no such protective effect of tea－drinking at any amount for risk of death from stroke.Among coffee drinkers，more proper consumption levels(2－3cups per day)were associated with the greatest risk reduction for death from heart disease(21%)compared to drinking less than one cup of coffee per day.

Researchers acknowledged certain inconclusive variables within their findings.For example，the difference between decaffeinated(去咖啡因的)and regular coffee could not be accurately accounted for，nor could specific recommendations be made for type of tea，though due to its popularity in the Netherlands where the study took place，researchers assumed most tea consumption to be black tea.

Furthermore，researchers found that tea and coffee drinkers had opposite lifestyles，with tea drinkers tending to engage in healthy lifestyle habits and coffee drinkers being more likely to eat less healthily and smoke.It was difficult to say with certainty what impact these other lifestyle variables may have contributed to the overall results.

1．What's the conclusion of the study?

A．People should drink tea and coffee as much as possible.

B．Drinking more tea may benefit people with CHD.

C．High tea consumption may reduce the rate of stroke.

D．Coffee consumption has nothing to do with heart disease.

2．Which of the following variables haven't been considered?

A．Health histories.

B．Height and weight.

C．Waist circumference.

D．The type of tea and coffee.

3．What can be inferred from the last paragraph?

A．All people in the Netherlands like black tea.

B．Tea and coffee drinkers had a similar life style.

C．Other variables have no effect on the results.

D．There are still something uncertain about the study.

4．Which of the following might be the best title?

A．Why Our Heart Loves Coffee and Tea?

B．Drink More Tea and Coffee

C．Heart Disease Will Be Reduced

D．An Amazing Finding About Heart Disease

答案：[解题导语]如果喝茶或咖啡已成为你日常生活的一部分，那么你或许会想知道这会对你的心脏健康有什么影响。本文介绍了一项科学研究，该研究发现多喝茶和适量咖啡有益于心脏健康。

1．B解析：细节理解题。根据文章第一段第二句．..found that high tea consumption and proper coffee consumption may be associated with decreased rates of death from coronary heart disease(CHD)(冠心病)．可知，新的研究发现，多喝茶和适量咖啡可能会减少死于冠心病的概率。故选B项。

2．D解析：细节理解题。根据文章第二段第三句Researchers accounted for variables(变量)such as health histories，height，weight，and waist circumference(腰围)and recorded the number of deaths from cardiovascular(心血管的)disease and stroke during the study period.可知，A、B、C三项均有提及。故选D项。

3．D解析：推理判断题。根据文章最后一句It was difficult to say with certainty what impact these other lifestyle variables may have contributed to the overall results.可知，对这个研究还有些不确定的因素。故选D项。

4．A解析：主旨大意题。通读全文可知，本文主要介绍了一项科学研究，该研究发现多喝茶和适量咖啡有益于心脏健康，因而A项能够反映主题。根据文章内容，喝咖啡要适量，故B项不符合；C项没有体现文章主题；D项则过于宽泛。

Ⅱ.阅读填空

Watermelon is one of the most popular and delicious summer fruits that almost everyone loves.__1__Watermelon is also rich in dietary fiber and potassium(钾)．While there's a strong debate over whether watermelon is a vegetable or a fruit，many of us consider watermelon to be both.If you want to learn a few amazingly interesting facts about watermelon，keep reading.

Did you know that watermelon can help you increase your brain power？The thing is，watermelon is an excellent source of vitamin B6.__2__Moreover，the water percentage in this delicious fruit is similar to the water percentage in the brain.

*It has a high water content