摘要:感激
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流感病毒是一种RNA病毒,其表面含有血凝素和神经氨酸酶等蛋白质。血凝素能与细胞膜特异性结合,帮助病毒侵入宿主细胞内。神经氨酸酶能够让新产生的病毒从细胞中释放出来。请回答问题:
(1)病毒进入人体后,首先被 细胞摄取、处理和呈递,最终激活B淋巴细胞,使其增殖、分化为记忆细胞和 细胞,后者分泌的 与该病毒特异性结合,从而抑制病毒增殖。
(2)病毒侵入人体细胞后,机体产生的 细胞能够与该病毒的宿主细胞结合,并裂解宿主细胞。
(3)在研发抑制流感病毒增殖的药物时,下列设计思路合理的是 (多选)。
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(1)病毒进入人体后,首先被 细胞摄取、处理和呈递,最终激活B淋巴细胞,使其增殖、分化为记忆细胞和 细胞,后者分泌的 与该病毒特异性结合,从而抑制病毒增殖。
(2)病毒侵入人体细胞后,机体产生的 细胞能够与该病毒的宿主细胞结合,并裂解宿主细胞。
(3)在研发抑制流感病毒增殖的药物时,下列设计思路合理的是 (多选)。
| A.阻止病毒血凝素与细胞膜结合 | B.抑制神经氨酸酶的活性 |
| C.研制新型抗生素等杀菌药物 | D.抑制病毒RNA的复制 |
姜堰四中为了激发中学生创意灵感,提高学习英语热情,举办了题为“My dream home”的演讲比赛。请你根据下表中所提供的信息,完成演讲稿。
要求:1. 表达清楚,语句通顺,意思连贯;
2. 要点须包括表格中的信息,但不要使用真实姓名和校名等;
3. 词数:80左右。信的开头与结尾已给出,不计入总词数。
Ladies and Gentlemen :
I’d like to tell you about my dream home.
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| 房子大 | 有2层,可以和家人住在一起;后面有花园; |
| 房间多 | 至少8个房间;一层有厨房、卧室……;二层有浴室、书房…… |
| 很舒适 | 可以和朋友在家聚会;放学后在书房做作业;早上在花园读书; |
| 其它 | 1.--- 2.--- |
2. 要点须包括表格中的信息,但不要使用真实姓名和校名等;
3. 词数:80左右。信的开头与结尾已给出,不计入总词数。
Ladies and Gentlemen :
I’d like to tell you about my dream home.
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Some people have a very poor sense(感觉) of direction. Unlucky, I am one of them. I have visited a place many times but I may still get lost there the next time.
When I was a little girl, I never dared ask strangers the way. And so I used to walk round in circle and hope that by chance I would get to the place I was going to.
Now, I am no longer too shy to ask people for directions, but I often receive helpless or even wrong information. So I try to avoid giving people wrong directions. If anyone asks me the way somewhere, I would say, “sorry, I am a stranger here.”
Once on my way to work I was stopped by a man. He asked me if I could tell him the way to the Friendship Building. I gave him my usual reply. But just as I walked on only a few steps. I realized that he had asked the way to my office building. However, I had no time to turn back and look for him. I was rushing to meet with someone at my office and I didn’t want to keep him waiting.
When I just got to my office, the secretary showed in the man who had asked me for directions. Imagine how embarrassed I was and how surprised he was when we saw each other at the first sight!
小题1:The writer always refuses to give people directions because .
小题2:A man stopped the writer on the way to .
小题3:The Friendship Building is the place where the writer .
小题4:The word “embarrassed” in the last paragraph means “ ”.
小题5:Which of the following is TRUE according to the passage?
When I was a little girl, I never dared ask strangers the way. And so I used to walk round in circle and hope that by chance I would get to the place I was going to.
Now, I am no longer too shy to ask people for directions, but I often receive helpless or even wrong information. So I try to avoid giving people wrong directions. If anyone asks me the way somewhere, I would say, “sorry, I am a stranger here.”
Once on my way to work I was stopped by a man. He asked me if I could tell him the way to the Friendship Building. I gave him my usual reply. But just as I walked on only a few steps. I realized that he had asked the way to my office building. However, I had no time to turn back and look for him. I was rushing to meet with someone at my office and I didn’t want to keep him waiting.
When I just got to my office, the secretary showed in the man who had asked me for directions. Imagine how embarrassed I was and how surprised he was when we saw each other at the first sight!
小题1:The writer always refuses to give people directions because .
| A.she’s a strange to the city | B.she doesn’t know the people |
| C.she has no time to help others | D.she’s afraid of giving wrong directions. |
| A.sell her something | B.ask for the time |
| C.make friends with her | D.ask for the directions. |
| A.lives | B.studies | C.works | D.teaches |
| A.尴尬 | B.困惑 | C.激动 | D.拮据 |
| A.The writer is too shy to give others directions |
| B.The writer has a very poor sense of directions |
| C.The writer never got lost when she was young. |
| D.The man was quite nervous when he saw the writer. |