摘要: A 考查语态.由语境.特别的by a car可知要用被动语态.排除B和D,由yesterday可知.应当用一般过去时.排除C.
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(10分)据报道:2011年12月31日深圳宝安沙井39岁患者陈某某,被诊断为人感染高致病性禽流感(H5N1)而引发的多脏器衰竭而死亡。禽流感再一次又引起了人们的高度关注。右图是高致病性禽流感病毒H5N1侵入人体后发生免疫反应的图解,图中A、B、C为有关的物质或结构。请据图回答问题:
(1)物质B的化学本质是 ______________。
(2)物质A为____________,是由效应T细胞分泌,又能诱导生成更多的效应_________ 细胞,这是一种____________调节机制。
(3)效应T细胞与靶细胞密切接触,激活靶细胞内的_____________,并使其通透性、渗透压发生改变,最终___________,释放出病毒与抗体结合,使病毒失去_________________________宿主细胞的能力。
(4)T细胞由__________分化而来,成熟于______________,并随血液和淋巴在体内流动。T细胞在人体免疫应答中除具有图示增殖分化的功能外,还能 ______________。 查看习题详情和答案>>
(1)物质B的化学本质是 ______________。
(2)物质A为____________,是由效应T细胞分泌,又能诱导生成更多的效应_________ 细胞,这是一种____________调节机制。
(3)效应T细胞与靶细胞密切接触,激活靶细胞内的_____________,并使其通透性、渗透压发生改变,最终___________,释放出病毒与抗体结合,使病毒失去_________________________宿主细胞的能力。
(4)T细胞由__________分化而来,成熟于______________,并随血液和淋巴在体内流动。T细胞在人体免疫应答中除具有图示增殖分化的功能外,还能 ______________。 查看习题详情和答案>>
句型转换,一空一词
That's a good idea. (变成由what引导的感叹句)
________ ________ ________ ________ that is!
查看习题详情和答案>>阅读下面短文,根据所给语境,按要求完成下列各题。
One morning, a blind boy sat on the steps of a building with a hat by his feet. He held a sign which said,
"I am blind. Please help me."
There were only a few coins in the hat. A man was walking by. He took out a few coins from his pocket
and dropped them into the hat. He then took the sign, turned it around, and wrote some words on it. ①He
put the sign back so that everyone who walked by could see the new words.
Soon the hat began to fill up. ②More people were giving money to the blind boy. That afternoon the man
who had changed the sign came to see how things were.The boy recognized his footsteps and asked, "Are
you the one who changed my sign in the morning? What did you write?''
The man said, "I only wrote the truth. I said what you said but in a different way."
What he had written was, "Today is a beautiful day, but I cannot see it."
Do you think the first sign and the second sign were saying the same thing?
Of course both signs told people the boy was blind. But the first sign simply told people to help by putting
some money in the hat. The second sign told people that they were able to enjoy the beauty of the day. But
the boy could not enjoy it because he was blind.
There are at least two lessons we can learn from this simple story. The first is: Treasure what you have.
Someone else has less. Try your best to help those who need your help.
The second is: Be creative. Think differently. There is always a better way.
"I am blind. Please help me."
There were only a few coins in the hat. A man was walking by. He took out a few coins from his pocket
and dropped them into the hat. He then took the sign, turned it around, and wrote some words on it. ①He
put the sign back so that everyone who walked by could see the new words.
Soon the hat began to fill up. ②More people were giving money to the blind boy. That afternoon the man
who had changed the sign came to see how things were.The boy recognized his footsteps and asked, "Are
you the one who changed my sign in the morning? What did you write?''
The man said, "I only wrote the truth. I said what you said but in a different way."
What he had written was, "Today is a beautiful day, but I cannot see it."
Do you think the first sign and the second sign were saying the same thing?
Of course both signs told people the boy was blind. But the first sign simply told people to help by putting
some money in the hat. The second sign told people that they were able to enjoy the beauty of the day. But
the boy could not enjoy it because he was blind.
There are at least two lessons we can learn from this simple story. The first is: Treasure what you have.
Someone else has less. Try your best to help those who need your help.
The second is: Be creative. Think differently. There is always a better way.
1. 将①处的句子翻译成汉语。
2. 将②处的句子改成被动语态。
3. 根据短文内容,完成下面的句子。(每空一词)
The words written by the kind man had the blind boy's words on the sign.
查看习题详情和答案>>
2. 将②处的句子改成被动语态。
3. 根据短文内容,完成下面的句子。(每空一词)
The words written by the kind man had the blind boy's words on the sign.