问题 多选题

下列变化过程属于消化的是(  )

A.肝脏分泌胆汁

B.淀粉在口腔内变成麦芽糖

C.牙齿将食物磨碎

D.葡萄糖进入小肠绒毛

答案

食物在消化道里被分解成小分子物质的过程叫做消化.通过牙齿的咀嚼和舌的搅拌,食物被磨碎并与唾液充分混合,这个过程属于物理消化,唾液中含有淀粉酶,唾液淀粉酶能将食物中的少量淀粉分解成麦芽糖,这个过程属于化学消化.肝脏分泌胆汁属于消化腺分泌消化液,葡萄糖进入小肠绒毛属于吸收,都不属于消化.

故选BC.

阅读理解

Knowing the best way to study will help you to be a better student.By using your time properly,you can do your homework more quickly.Learning to stuady is not difficult.

The first thing to remember is that you must be willing to learn.It doesn’t mean that you must always like the subject.It does mean,however,that you must be willing to do whatever is necessary to learn.Try to understand why it is important and how it will help you now and later to do and learn other things.Knowing mathematics facts will be useful in your whole life.Knowing how to spell makes any kind of writing easier.Sometimes a subject that you think is going to be uninteresting will be exciting when you begin to work at it and understand it more clearly.Learning things can be fun if you are willing to work with them.

Here’s some advice for you:have a certain time each day and a quiet place with good lighting for study,so that you can concentrate(集中)on your study without interruptions(中断,打断);have everything ready before you sit down to study—a dictionary,paper,a pen and books;be sure you understand what you should learn before you start;read carefully and pay special attention to the most important things;when memorizing(记忆), first find out the main parts and then recite(背诵)the whole thing;check your homework after you finish it:never forget the importance of review and preview

小题1:The main idea of the text is         

A.to prove that learning is not difficult

B.to make the readers be interested in study

C.to tell the importance of self-teaching

D.to tell the students how to study well小题2:The first thing to remember in studying is that         

A.you must like the subject

B.you must follow the teacher

C.you must enioy learning

D.you must study hard小题3:What does the underlined word“preview”mean?

A.To go over.

B.To review again.

C.To view in advance.

D.To discuss.小题4:Which of the following is NOT the advice given in the text?

A.To put a pen,paper and books beside you before study.

B.To study at any possible time and place.

C.To review and preview.

D.To pay attention to the most important things。

判断题