I travel a lot, and I find out different

来源:www.tikuol.com 发布时间:2017-07-21 11:53
题型:阅读理解

问题:

I travel a lot, and I find out different “styles”(风格) of directions every time I ask “How can I get to the post office?”

Foreign tourists are often confused(困惑) in Japan because most streets there don’t have names; in Japan, people use landmarks(地标) in their directions instead of street names. For example, the Japanese will say to travelers, “Go straight down to the corner. Turn left at the big hotel and go past a fruit market. The post office is across from the bus stop.”

In the countryside of the American Midwest, there are not usually many landmarks. There are no mountains, so the land is very flat; in many places there are no towns or buildings within miles. Instead of landmarks, people will tell you directions and distances. In Kansas or Iowa, for example, people will say, “Go north two miles. Turn east, and then go another mile.”

People in Los Angeles, California, have no idea of distance on the map; they measure distance in time, not miles. “How far away is the post office?” you ask. “Oh,” they answer, “it’s about five minutes from here.” You say, “Yes, but how many miles away is it?” They don’t know.

It’s true that a person doesn’t know the answer to your question sometimes. What happens in such a situation? A new Yorker might say, “Sorry, I have no idea.” But in Yucatan, Mexico, no one answers “I don’t know.” People in Yucatan believe that “I don’t know” is impolite. They usually give an answer, often a wrong one.        A tourist can get very, very lost in Yucatan!

小题1:When a tourist asks the Japanese the way to a certain place, they usually ______.

A.describe the place carefully

B.show him a map of the place

C.tell him the names of the streets

D.refer to recognizable buildings and places小题2:What is the place where people measure distance in time?

A.New York.

B.Los Angeles.

C.Kansas.

D.Iowa.小题3:People in Yucatan may give a tourist a wrong answer ______.

A.in order to save time

B.Los Angeles.

C.so as to be polite

D.for fun小题4:What can we infer from the text?

A.It’s important for travelers to understand cultural differences.

B.It’s useful for travelers to know how to ask the way properly.

C.People have similar understandings of politeness.

D.New Yorkers are generally friendly to visitors.

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题型:实验题

某小组以果蝇为材料进行遗传实验。已知果蝇中长翅对残翅为显性(A、a),控制翅形基因位于常染色体上。

(1)某实验小组在25℃环境下正常孵化一批果蝇受精卵,4~7d后从这批孵化的幼虫中随机挑出了大量的长翅果蝇幼虫放在A试管内,如果将其继续放在35℃环境下处理6~24h,培养出的成虫中会出现了一定数量雌雄皆有的残翅果蝇(假设没有基因突变发生)。该现象说明____________________________________。

(2)该小组的B试管内有1只残翅雄果蝇,但是不清楚其基因型,请以A试管的成虫果蝇为实验材料,设计一实验方案对B试管的残翅果蝇进行基因型的鉴定,请写出实验设计步骤并预测实验结果。

第一步:________________。第二步:_______________。

预测结果:_______________;________________;________________。

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联合国一份报告指出,全球用水量在20世纪增加了6倍;水污染事故频发,全世界现在有8.4亿人不能享有安全饮水,每年约有150多万5岁以下儿童因此死亡。中国是一个干旱缺水严重的国家。受全球变暖趋势的影响,过去50年间,中国已有约1000个内陆湖泊消失;专家警告说,继石油危机之后的下一场危机就是水。

据此回答下列问题:

(1)造成水资源短缺的原因是什么?它有什么危害性?

_______________________________________________________________________________

(2)为了唤起节约用水的价值理念,倡导节约用水,请你向全校师生发出倡议。

_______________________________________________________________________________

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