问题 选择题

工业酒精中含有甲醇,甲醇的化学式为CH4O,关于甲醇的下列叙述正确的是(    )

A.甲醇是由1个碳原子、4个氢原子和一个氧原子构成的

B.甲醇中碳、氢元素的质量比为1:2

C.甲醇分子中有28个电子

D.甲醇完全燃烧时生成C02和H20的质量之比为11:9

答案

答案:D

A一个甲醇分子是由1个碳原子、4个氢原子和一个氧原子构成的

B甲醇中碳、氢元素的质量比为3:1

C甲醇分子中有32个电子

D正确

故选D

完形填空

New York is one of the most exciting cities in the world.

You might want to do some shopping in New York. Fifth Avenue is probably New York's most famous shopping street, but if you go, be prepared to "window shop" only. This is shopping for the rich. There are other, less expensive shopping areas nearby, and you'll soon come across famous stores(商店) such as Bloomingdales, Macy's and FAO Schwartz.

And if you've brought your rollerblades(滚轴溜冰鞋), then a visit to Central Park is a must. This is a large,

open park right in the middle of Manhattan, but if you thought that people came here to relax, sit down for a few minutes and get away from the rush(忙碌) of New York life, then you'd be wrong. Nobody sits in Central Park: they run, jog , and most of all, they rollerblade.

When you leave New York, you might be tired, even poor and overweight, but the one thing you won't be is bored!

根据短文内容,回答问题。

小题1:Why would you probably only “window shop” in Fifth Avenue ?

                                                                           

小题2:There is a big park in Manhattan. What is the name of it ?(2 words)

                                                                          

小题3:What don’t people do in Central Park ?( less than 3 words)

                                                                           

小题4:Which street is New York’s most famous shopping street ?(2 words)

                                                                           

小题5:What do people usually do in Central Park ?(less than 5 words.)

                                                                           

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