问题 问答题

说明细菌与病毒的主要区别点。

答案

参考答案:答:(1)病毒只有一种核酸(或DNA或RNA)。 (2)没有完整的酶系统,严格细胞内寄生。 (3)繁殖方式是复制。 (4)对抗生素不敏感,对干扰素敏感。

阅读理解

"Can I get a light?" This question is among the most common between smokers. What if this question was to come from an unusual source? In April 2014, the National Health Promotion Foundation uploaded an anti-smoking advertisement onto YouTube. The anti-smoking ad has quickly been known as the "most powerful anti-smoking ad."

The anti-smoking video, called the "Smoking Kid," features children walking up to adult smokers asking for a light. The children in the ad are actors but the adults smoking are unsuspecting participants in the project.

The video begins with the statement "adults know that smoking is harmful, but don’t remind themselves of this fact " Once a "smoking kid" approaches the adults, every adult asked is shocked that a child with a cigarette in hand is asking for a light. The first adult starts by saying, "I’m not giving it to you," and the video goes on to state "every adult filmed said no and reminded the children that smoking is bad."

Before going away, the kid hands each adult a booklet after being turned down for a light. The booklet says, "You worry about me, but why not about yourself?" Each adult looks around for the child as their faces are filled with confusion and discomfort.

The video shows that a few of the smokers quickly threw away their cigarettes or put their cigarettes away, showing that this experiment was affective at that moment.

The most influential element in the ad isn't the use of children or the responses from the smoking adults. It comes down to something much simpler than that. Why is it that we worry about other people, forgetting to worry about ourselves?

小题1: According to the text, the anti-smoking ad is ______.

A.unusual

B.shocking

C.influential

D.encouraging小题2:The underlined word "unsuspecting" (in Para. 2) probably means ______

A.uninformed

B.unwilling

C.unfortunate

D.unacceptable小题3: What are the adults,reactions to the children asking for a light?

A.They pay no attention to children's request.

B.They reject kids,request and educate them.

C.They look around for children's parents.

D.They quickly throw children's cigarettes away.小题4:The best title of the text might be ______.

A.Give up smoking, for your own sake

B.Keep away from smoking, adults

C.Tell your children not to smoke

D.Reject a child asking for a light

多项选择题