问题 选择题

下面是人体内食物成分被消化和吸收的过程,其中顺序正确的是(  )

①营养物质被小肠绒毛吸收②蛋白质开始被消化③脂肪开始被消化④淀粉开始被消化.

A.①②③④

B.④③②①

C.④②③①

D.①③②④

答案

淀粉的消化从口腔开始,口腔中的唾液淀粉酶能够将部分淀粉分解为麦芽糖,蛋白质的消化是从胃开始的,脂肪的消化开始于小肠,当淀粉和麦芽糖进入小肠后,由于小肠中的胰液和肠液中含有消化糖类的酶、蛋白质和脂肪的酶,它们最终在小肠被消化葡萄糖、氨基酸、甘油和脂肪酸,然后被小肠绒毛吸收,小肠是消化和吸收的主要器官.

故选:C

翻译题

完成句子

阅读下列各小题,根据每句后的汉语提示,用句末括号内的英语单词完成句子.

1. The public cast doubt on the official reason for the train crash ____________________an abrupt thunderstorm.(meet)

官方关于火车事故的原因解释是火车遭遇到突然的雷雨,该原因遭到公众质疑.

 2. Is this software ____________________ evaluates the safety of the building being built?(architect)

这就是建筑师用来评估在建大楼安全系数的软件吗?

3. The father pretended ____________________his daughter in business, but actually her success owed a great deal to him.(assist)

这位父亲假装在生意上没有帮他的女儿,但实际上她的成功很大程度上归功于他.

4. ____________________by his fellow colleagues discouraged the disabled young man and hurt his dignity.(make)

遭到同事的取笑让这个残疾的年轻人很沮丧,也伤害了他的尊严.

5. Every time grandma ____________________after climbing the stairs. I was quite concerned about her health.(breath)

每次爬完楼梯后祖母总是上气不接下气,我非常担心她的身体.

 6. Not only ____________________the fast rhythm of city life, but she is becoming more and more outgoing.(adapt)

她不仅已经适应了快节奏的城市生活,而且变得越来越开朗了.

7. I have no the slightest idea what it is ________________ in store for me.(hold)

我完全不知道未来到底会发生些什么.

8. Had it not been for students' constant absences, the professor____________________.(annoy)

如果不是因为学生老是缺席的话,教授就不会如此生气了.

9. Sally, as well as her parents, ____________________ the noise recently due to the construction of the underground.(suffer)

由于修建地铁的原因,莎莉和她的父母最近受到噪音的折磨.

10. ____________________by the heavy snow for a whole month, the village is now desperate for food and basic necessities.(cut)

被大雪封了整整一个月,现在全村极其渴望得到食物和基本必需品.

单项选择题 共用题干题