问题 单项选择题

在人体内将某种物质的分子或离子由膜的低浓度一侧移向高浓度一侧的过程是()

A.易化扩散

B.单纯扩散

C.主动转运

D.被动转运

E.入胞作用

答案

参考答案:C

解析:在膜的主动转运中,逆着浓度差进行转运时需要消耗能量,能量是由膜或膜所属的细胞来供给,以直接分解ATP为能量来源,将有关离子进行逆浓度的转运。

阅读理解

Do you know some world famous brands (品脾), such as Nike, adidas, Kappa...? What do you think of them? Do you use their products(产品)? Here are some students' opinions:

Sam: I am a Nike fan. Many of Nike's advertisements are fun and its products are great! I have a pair of Nike basketball shoes.

Joe: In my eyes , top brand means high quality, So I love top brand products though they're very expensive. I was glad Mum bought me a Kappa T-shirt last month.

Sally:The logos(标识) of famous brands are usually unique and nice. It's cool to own products with those logos. Sometimes I wear my adidas coat.

Jack:Many top brand products are advertised by spokesmen(代言人). I love the spokesmen of many top brand products. I've got many Nike socks.

Susan: I know it's popular for young people to have famous brand products these days. But my parents both lost their jobs. I have no interest in following the fashion. I only choose the products that are not expensive.

Adam: As a student, I don't earn money myself. It's not easy for my parents to support me. So I only use some ordinary products. I don't agree students use the famous brand products.

小题1:Joe loves top brand products because he thinks ______.

A.top brand means high quality

B.top brands' advertisements are fun

C.it's cool to own top brand products

D.the spokesmen of top brand products are his favourite小题2:What does Sally think of the products of famous brands?

A.She thinks they are expensive.

B.She thinks it's cool to own them.

C.She thinks they are popular.

D.She thinks they don't suit her.小题3:Among the six students, who don't have top brand products?

A.Sam and Joe.

B.Sally and Jack.

C.Susan and Adam.

D.Jack and Sam.

填空题