1.甲型H1N1流感病毒是一种新型变异病毒,包含有禽流感、猪流感和人流感三种流感病毒的基因片断,同时拥有亚洲猪流感和非洲猪流感病毒特征,是一种之前从未在人和猪身上出现过的新型流感病毒。下列人体对流感的免疫过程的说法正确的是
A.由于流感病毒可通过基因突变、基因重组和染色体变异等方式产生变异,因此疫苗的研制必须具有针对性。
B.抗体只能作用于细胞外的流感病毒,而不能作用于细胞内的流感病毒
C.一旦甲型H1N1流感病毒侵入人体,记忆B细胞就会迅速增殖分化。
D.效应T细胞能直接作用于流感病毒,导致流感病毒的裂解死亡
第二节 书面表达(满分25分)
你和李明参加了一次野外生存训练。以下5幅图画表现了野外训练活动的过程,请根据图示写一篇英文日记。
注意:1.词数100左右;2.日记的开头与结尾已为你写好。
生词:指南针:compass n 手电筒:flashlight n 急救包:first-aid kit 宿营地:campsite n
Saturday ,May 4,2002 cloudy
Li Ming and I took part in wilderness survival program yesterday ,and it has been one of the most unforgettable experiences since high school.
The two of us spent the night in the forest .
We learned to use knowledge gained in classroom training to solve problems .It was quite an experience for us both ,which I’ll never forget for the rest of my life .
第一节 短文改错(共10小题;每小题1分,满分10分)
此题要求改正所给短文中的错误。对标有题号的每一行作出判断;
如无错误,在该行右边横线上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:
此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。
此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。
此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。
注意:原行没有错的不要改。
What should you do when your parents become angry ?If your 76.
parents got mad ,try to have a conversation with them 77.
about it .Remembering not to shout at them .They usually 78.
will try to change ,but they will take some time because 79.
they get angry all their life ,and that is all they know .You 80.
might have to change for your method a couple of times . 81.
Do any nice things for your parents that they don’t expect 82.
-like cooking ,doing the dishes ,washing clothes ,or clean 83.
the floors .If this doesn’t work ,bring in friend that you 84.
feel comfortable ,and have him or her help you . 85.
35.-It’s been a wonderful evening .Thank you very much .
- .
A.My pleasure B.I’m glad to hear that C.No ,thanks D.It’s OK
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