题目

In kindergarten your idea of a good friend was the person who let you have the red crayon(蜡笔) when all that was left was the ugly black one.
In primary school your _\_1__ of a good friend was the person who went to the bathroom with you; _\_2__ your hand as you walked through the scary(可怕的) halls; _\_3__ their lunch with you when you left _\_4__ on the bus; saved a _\_5__ on the back of the bus for you; knew _\_6__ you had a crush on(迷恋) and never understood why. In _\_7__ school your idea of a good friend was the person who let you _\_8__ their social studies homework; went to that “cool” party with you  _\_9__ you wouldn’t wind up(结束) being the only fresher there; did not let you lunch _\__10___.
In pre-university your idea of a good friend was the person who gave you_\_11__ in their new car;  comforted you when you broke up with Nick or Susan: found you a(n) _\_12__ to the prom(舞会) or went to the prom with you(both without dates); helped you pick a university and assured you that you would get into that _\_13___; helped you deal with your parents who were having a ___14__ time letting you go.
On the threshold(开始) of _\_15___  your idea of a good friend was the person who was there ___16__ you just couldn’t deal with your parents; assured you that now you and Nick or you and Susan were _\_17__ together, you could make it through anything; just silently hugged you as you _\_18__ through blurry(模糊的) eyes at 18 years of memories; and reassured you that you would _\_19__ it in university as well as you had these past 18 years; and most importantly _\_20__ you off to university knowing you were loved.


A. idea    B. thought    C. mind  D. sight
A. placed   B. shook  C. held   D. waved
A. cooked  B. seized C. shared D. bought
A. ours    B. hers   C. his    D. yours
A. ticket   B. seat   C. chair  D. stand
A. what    B. that   C. who   D. why
A. primary  B. secondary  C. college    D. pre-university
A. do  B. see    C. check  D. copy
A. and B. so    C. as    D. but
A. together    B. far    C. lonely D. alone
A. seat    B. time   C. money    D. rides
A. car    B. excuse C. friend D. date
A. school  B. prom  C. club   D. university
A. good   B. wonderful  C. hard   D. modern
A. boy    B. baby  C. child  D. adulthood
A. where  B. when  C. how   D. why
A. back   B. happy C. up    D. over
A. looked  B. went  C. came  D. passed
A. have   B. get    C. make  D. take
A. put    B. got   C. took   D. sent

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艾滋病(AIDS)是目前威胁人类生命的重要疾病之一。能导致艾滋病的HIV是一种球形的RNA病毒。HIV最初侵入人体时,人的免疫系统可以摧毁大多数病毒,少数HIV在体内潜伏下来,经过2~10年的潜伏期,发展为艾滋病(如图所示)。请分析回答下列问题:

(1)HIV感染早期,被HIV感染的细胞与___\_(浆细胞、效应T细胞)结合,经过一系列变化,最终被感染细胞裂解死亡,这一过程称为____\_免疫。同时,HIV进入体内后刺激____\_细胞产生抗HIV抗体,抗体与HIV结合形成沉淀,被吞噬细胞吞噬消化,这一过程称为______免疫。 (2)HIV感染后,HIV持续攻击人体的___\_细胞,使得患者的免疫力缺乏,因此艾滋病(AIDS)的中文全称是______综合症。

某种病毒已侵入人体细胞内,机体免疫系统对该靶细胞发挥的免疫作用是

[  ]

A.体液免疫B.细胞免疫C.自身免疫D.非特异性免疫

下图表示某种特异性免疫某时期的结构,请据图分析并判断下列说法不正确的是

[  ]

A.该细胞是效应B细胞,不一定由B细胞增殖、分化产生的B.图中与该物质合成分泌有关的细胞器有②③④C.吸附在某些细胞表面的抗体与过敏原结合,使细胞释放组织胺,组织胺所起的调节作用属于体液调节D.直接利用该细胞进行细胞培养,能产生具有特异性强,性质单一的抗体,称之为单克隆抗体

人体受病毒感染后,机体会发生免疫反应。下列说法正确的是

[  ]

A.往往是先通过体液免疫的作用,再通过细胞免疫的作用彻底消灭病毒B.往往是先通过细胞免疫的作用,再通过体液免疫的作用彻底消灭病毒C.往往是先通过细胞免疫的作用,再通过非特异性免疫作用彻底消灭病毒D.往往是先通过体液免疫的作用,再通过非特异性免疫作用彻底消灭病毒

下列免疫反应中,属于体液免疫反应的是

[  ]

A.体液中的吞噬细胞吞噬病原体B.免疫球蛋白与病菌结合抑制病菌繁殖C.体液中的可溶性免疫活性物质干扰素抵抗病毒感染D.眼泪中的溶菌酶可破坏侵入人体的细菌

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