问题 单项选择题 B1型题

生物价是()。

A.评价食物蛋白质含量的指标

B.评价食物蛋白质利用率的指标

C.评价食物蛋白质必需氨基酸组成的指标

D.评价食物蛋白质消化吸收率的指标

E.评价食物蛋白质氨基酸含量的指标

答案

参考答案:B

解析:1.为一种评估蛋白质营养价值的生物方法,系指对吸收氮量之保留氮量的百分比值。与净蛋白质利用率(NPU)不同的是生物价有考虑生物体的消化吸收率。 2.蛋白质功效比值是用处于生长阶段中的幼年动物在实验期内,其体重增加和摄入蛋白质的量的比值来反映蛋白质的营养价值的指标。 3.AAS是被测蛋白质每克氮(或蛋白质)中氨基酸量(mg)除以理想模式或参考蛋白质中每克氮(或蛋白质)中氨基酸量(mg)。

单项选择题
阅读理解

第三部分:阅读理解(共两节,40分)

阅读下列短文,从每题所给的A、B、C、D中,选出最佳选项,并在答题卡上将该项涂黑。

Learning new words is learning new ideas: High school students can take control of their

learning by always looking up new words and finding out what they mean. They should keep a dictionary and a thesaurus close at hand.

Make clear lists: Students should make a list of everything that they need to get done. They should check off assignments (作业)once completed. They should include clear due dates.

Make a commitment: Active learners will resolve to keep up –to-date from the start. They will avoid procrastinating (delay doing something). They will complete most of their work as early as possible.

Independent work is best: Students will so all assignments independently—they will never copy! Students who copy are passive learners. Passive learners do not give their mind a chance to think on its own.

Organization is key: Students should keep an excellent folder and notebook. All problems should be clearly stated and solutions given. All tests and quizzes should be corrected and used as study guides for exams and finals.

All actions without solutions are dead: Active learners will always show their work needed to solve a problem. Active learners will never turn in a list of answers without giving an explanation or a solution.

Advanced reading: Students should do any required reading for the topic before class. They should write an outline of the section or chapter. They should actively take notes as they read to help them remember.

56.If you want to be successful in exams and finals you should ________.

A.give your mind a chance to think on its own

B.check off your papers once completed

C.keep an excellent folder and notebook

D.hand in your homework on time

57.If you want to be an active learner you________.

A.shouldn’t copy others assignments

B.shouldn’t write an outline before class

C.needn’t correct mistakes in the tests

D.needn’t kept a dictionary at hand

58.The best title of the passage is “________”.

A.How to Be an Effective Reader      B.How to Get Good Scores in Tests

C.How to Collect Academic Information   D.How to Actively Study in High School