问题 填空题 案例分析题

下图为人体部分特异性免疫过程的示意图,请据图回答问题:

HIV侵入人体后,主要攻击的细胞是()(填字母),导致的疾病属于免疫失调疾病类型中的()

答案

参考答案:b;免疫缺陷病

解析:细胞a为吞噬细胞,细胞b为T细胞,细胞d为效应T细胞,则④表示的是细胞免疫。细胞c为B细胞,细胞f为浆细胞,细胞g为记忆细胞,所以B物质表示的是抗体,其化学本质是蛋白质。灰尘对某学生为过敏源可引起过敏反应。HIV侵入人体后,主要攻击的细胞是T细胞(细胞b),属于免疫缺陷病。考点:免疫调节点评:本题考查了学生的识图分析能力,难度适中,解题的关键是明白体液免疫与细胞免疫。

阅读理解

阅读理解。

      It is the last week of the holidays. Bill wants to take a trip. His uncle lives at the seashore (海边). Bill wants

to visit him.

      "It'll be my last chance (机会) to go swimming in the ocean (海洋) this year." Bill says to his parents."

Next month it will be too cold."

      "I don't know, Bill." His mother says. "It's a long way." She looks at her husband."What do you think,

Harry?"  

      "Oh, let him go, Alice," Mr. White says." He is fifteen years old. He's not a baby, you know."

      "I know he's not a baby." says Mrs. White. "But there are too many connections (换车) to make. He has

to take a bus and a train and then another bus."" Please, mother." Says Bill." I've made the trip (已去过) with

you and Dad a lot of times. I know the way. I won't have any trouble (麻烦)."

     "Let him go, Alice." Says Mr. White again."It will be a good experience (体验) for him. He won't get lost."

1. What does Bill want to do when it is the last week of the holidays?

A. He wants to go on a trip.

B. He wants to visit his uncle.

C. He wants to go swimming in the sea.

D. All the above.

2. Doesn't his mother say yes to him?

 A. Yes, he does

B. Yes, he doesn't

C. No, he does

D. No, she doesn't

3. Why does Bill's father agree with him?

A. Because he thinks Bill is young.

B. Because he doesn't think Bill is a baby.

C. Because he wants to leave Bill.

D. Because he doesn't want to leave Bill.

4. How does Bill get to his uncle's home?

A. By air

B. By plane.

C. He has to take not only a bus but also a train.

D. Only take a train.

5. Do you think Bill goes to visit his uncle at last?

A. Yes, I think so.

B. No, I don't think so.

C. Bill won't have any trouble.

D. Bill has gone there many.

单项选择题