问题 单项选择题

一项新的研究发现,短期摄入高脂食物有益心脏。研究人员在实验后期人工引发老鼠心脏缺血性伤害,类似人心脏病发作时的情况,他们发现,吃高脂食物24小时、1周和2周的老鼠心脏组织受损状况比吃6周高脂食物的老鼠和“吃素”的老师轻70%。研究人员认为这是由于短期摄入高脂食品可以使心脏肌肉获得更多能量,增强抵御伤害能力。他们认为:短期摄入高脂饮食或可保护心脏机能。   以下哪项为真,最能支持题干的结论

A.如果让老鼠“吃一天荤”后改“吃素”,它们心脏抵御伤害的能力比一开始就“吃素”的老鼠强

B.高脂食物可以使人体获得进行新陈代谢等活动所必须的物资和能量

C.高脂食物中所含有的低密度脂蛋白胆固醇是人体所不可缺少的物质

D.要想降低患心脏病风险,应注意饮食平衡,适当摄入脂肪和胆固醇

答案

参考答案:A

解析:解析:题干由吃高脂食物24小时、1周和2周的老鼠心脏组织受损状况比吃6周高脂食物的老鼠和“吃素”的老鼠轻70%,得出短期摄入高脂饮食或可保护心脏机能。A项让老鼠“吃一天荤”然后“吃素”与一直“吃素”的老鼠进行对比,补充了题干原有实验缺少对比的不足,直接加强了题干结论。B、C、D三项与题干无关。故答案选A。

写作题

第二节读写任务(共1小题,满分25分)

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

A little boy is telling his Grandma how "everything" is going wrong, school, family problems, severe health problems, etc.

Meanwhile, Grandma is baking a cake. She asks her grandson if he would like a cake, which, of course, he does.

"Here, have some cooking oil."

"Terrible!" says the boy.

"How about a couple raw eggs?"

" Terrible! Grandma!"

"Would you like some flour then? Or maybe baking soda?"

"Grandma, those are all awful!"

To which Grandma replies:“Yes, all those things seem bad by themselves, but when they are put together in the right way, they make a wonderfully delicious cake!

“Life works the same way. Many times we wonder why it would let us go through such bad and difficult times. But life knows that when it puts these things all in its order, they always work for good!

“The trials(考验)of life serve a meaningful purpose in making us stronger. Do not lose heart if life is not easy for you right now, but encourage yourself and know you will be much stronger mentally and physically because of the trials of life. ”

[写作内容]

1.以约30个词概括这段短文的内容;

2.然后以约120个词以“Facing the Trials of Life”为题进行议论,内容包括:

(1) 你阅读短文后的感受;

(2) 简述你经历过的一次困难或考验;

(3) 你认为应当如何看待生活中的考验。

[写作要求]

1.在作文中可以使用自己亲身的经历或虚构的故事,也可以参照阅读材料的内容但不得直接引用原文中的句子;

2.作文中不能出现真实姓名和学校名称。

[评分标准]

概括准确,语言规范,内容合适,篇章连贯。

多项选择题