题目内容
【题目】根据对话内容,从方框中所给的七个选项中选出五个句子补全对话,使对话完整、通顺。并将所选标号在对话后面的横线上。
A:How time flies !【1】
B: That’s right. By the way, what are you going to do after leaving school ?
A: I’m not sure.【2】
B: I’m different. I expect to have a new start.
A: What do you mean ?【3】
B: Of course not. I mean I will have a better future.
A: Sounds great .【4】
B: I wish I could go to a great high school. Then I may go to a famous college.
A: However, your dream seems to have nothing special.
B: Yes, it does.【5】So they hope I can achieve their dream.
A: Oh, I get it now. You must have more duties.
B: Yes. Everyone is supposed to do something meaningful in their lives.
A.Do you hate the life here?
B.My parents would like to go to college,too?
C.Do you know my parents never went to college ?
D.Tell me more about your plan,please.
E.Nearly three years has passed since we came here.
F.Are you used to the life here?
G.It’s hard to know what will happen in the future
【答案】
【1】E
【2】G
【3】A
【4】D
【5】C
【解析】
试题对话是两位同学在毕业前的一次对话交流。提到毕业后的打算,说到毕业后想有一个全新的生活。于是朋友很想知道有什么不同的想法。原来,他的父母都没有上过大学,因此他想去一个更好的高中,然后一所著名的大学。最后总结,每个人都希望在末来能做一些有意义的事。
【1】联系上文:时间真快呀!结合下文:顺便问一下,毕业之后,你打算去做什么?因此,问毕业后你将要做什么?故选E
【2】联系下文:我是不同的,我期望有一个新的开始。再结合上文之意,从而明确前面提到的是,我很难知道将来会发生什么?故选G
【3】联系句意:你的意思是什么呀?你不喜欢这样的生活吗?结合下文:当然不,我的意思是我将会有一个更好的未来。因此是在问:你不喜欢这样的生活吗?故选A
【4】联系下文:我希望我能去一个好的高中。然后,我可能去一个著名的大学。结合上文,听了朋友将要有一个好的将来,然后解释的都是将来的目标,因此是在问:请你告诉我关于你更多的计划。故选D
【5】联系前文:你的梦想听起来不特别呀。结合本句:是的,并不特别,你知道我的父母从没有上过大学,因此他们希望我能实现他们的梦想。从而明确了答案。故选C
【题目】 Do you know viruses (病毒) and bacteria (细菌)? Both of them are very small, we can't see them with our eyes, and many people know nothing about them, In fact, there are a number of differences between viruses and bacteria. Bacterium, the singular form of the word bacteria, is a one-celled (单细胞) living thing, with complete sets of both RNA and DNA genetic codes (遗传密码). For viruses, some are sections of RNA, and the others are sections of DNA. So, bacterium is at least a hundred times larger than a typical virus.
One main difference between viruses and bacteria is the method of reproduction. A bacterium is a completely independent and self-reproducing unit. When the time is right, bacterium will divide its DNA and RNA genetic material in two. This is how bacteria live in almost every environment on Earth, including non-living things like rocks or plastic.
A virus, on the other hand, cannot reproduce without a living host. A virus may lie for thousands of years before finally coming into a suitable host. Once it enters the body of a host, a virus will get in the ling cell. Once inside a living cell, a virus takes the place of the living cell's DNA or RNA genetic instructions with its own. Those instructions are usually to make as many copies of the virus as possible.
Ninety-nine percent of all known bacteria are considered useful to humans, or at least have no bad influence. But most viruses, on the other hand, serve no good purpose. Their only purpose is to create more viruses in order to make themselves continue to live.
Bacteria are alive, which means they can be killed by some form of chemical things. Antibiotics (抗生素) can kill bacteria. Viruses, by comparison, are not considered living things. They cannot be 'killed' in the same way as antibiotics kill bacteria. In fact, any medicine is useless for virus' infections. The disease must run its course until the body can make a successful protection on its own.
Viruses and Bacteria | |||
Similarity | Both are too small 【1】 with our eyes. | ||
Differences | Viruses | Bacteria | |
What they're like | ● They are not living things. | ● They are living things. | |
● A virus is a section of 【2】 RNA 【3】 DNA. | ● A bacterium has complete sets of both RNA and DNA genetic codes. | ||
● A virus is much smaller than a bacterium. | |||
How they reproduce | A virus can not copy without a living host | A bacterium can reproduce 【4】 in almost every environment on Earth. | |
How they influence humans | Most of them do 【5】humans. | Most of them are considered useful to humans, or at least have no bad influence. | |
【6】for viruses and bacteria | We can use antibiotics to kill bacteria while for viruses it only depends on if our body can make a successful protection on its own. | ||