衛(wèi)生類：完形填空Eat for a Good
Food __1__ us alive. It is our sustenance and our pleasure. But recently， research has shown that the eating habits of the average Americans may be dangerous to future health.
The foods Americans now choose are oftentimes too __2__ in calories and fats， so this article reports a new study: Diet and Health， Implications for Reducing Chronic Disease Risk.
The study， conducted __3__ the National Research Councils committee on Diet and Health， __4__ that balancing nutrition， calories and activity is key __5__ enjoying a long and healthful life.
The report recommends that most Americans increase __6__ activity to a moderate level and make changes in food __7__ and calories intake to maintain ideal weight. Most of us --- even those of us at ideal weight --- need to eat __8__ fat so that no more than 30% of our daily calories will come from fat.
That means cutting __9__ on red meat and whole milk dairy products. __10__， eat fish， chicken without skin， lean meats， and low-fat and no-fat dairy products.
The report of the Committee on Diet and Health recommends we eat five or more 1/2-cup servings of vegetables and fruits __11__ --- especially green and yellow vegetables and citrus fruits.
Eating more fruits and vegetables doesnt have to mean increased calories intake. Many plant foods are nutrient-rich: they provide many vitamins and minerals for very few __12__.
Nutrient-rich foods are particularly important for Americans __13__ age 50. As we __14__， we need to eat less because our bodies need __15__ calories to function properly. But we still need full measures of vitamins and minerals to release the energy in our foods and make us feel strong and healthy.
1. A remain B remains C keep D keeps
2. A full B rich C little D special
3. A by B at C with D for
4. A doubts B concludes C knows D reasons
5. A about B to C of D for
6. A mental B spare C physical D chemical
7. A choose B chooses C chose D choices
8. A little B much C less D more
9. A up B down C hard D off
10. A However B Or C Indeed D Rather
11. A day B daily C year D annually
12. A nutrition B nutritions C calorie D calories
13. A over B under C for D in
14. A older B old C age D grow
15. A less B. fewer C more D enough
答案及解析：
1.D.keep us alive使我們活下去。
2.B.rich in …富含……
3.A.conducted by…由。。主持。
4.B.從主語“研究”判斷，空格處(謂語)的搭配詞義應(yīng)該是“結(jié)論”。
5.B.key to …對。。來說是關(guān)鍵。
6.C.A和C是詞義相對的一組詞，重點考察；而“身體活動”符合文章主題。
7.D.空格處需要名詞。
8.C.fat是不可數(shù)名詞，且從句意上看 less合適。
9.B.cut down on是減少。
10.C.從空格所在的使用結(jié)構(gòu)排除B和D，再用排除法借助句意關(guān)系排除A.
11.B.空格處需要副詞，句意上選擇“每天”。
12.D.“營養(yǎng)”是不可數(shù)名詞，“卡里拉(熱量單位)”是可數(shù)名詞，所以排除A和C.而for在這里是表示關(guān)聯(lián)或聯(lián)系 。 如： took two steps back for every step forward.(每前進(jìn)一步向后退兩步)
13.A.over 50是“50歲以上”。
14.C.空格處需要謂語，age是“變老”。
15.B.calories 是可數(shù)名詞，且從句意看“年紀(jì)越大吃的越少”合適。