问题 选择题

下列物质中,属于氧化物的是

A.水

B.氧气

C.锰酸钾

D.氯化钙

答案

答案:A

氧化物含有两种元素,所以含有一种元素的氧气和含有三种元素的锰酸钾BC错误,氧化物必须含有氧,所以D氯化钙错误,只有水符合氧化物的特征.

故选A

完形填空

根据汉语完成句子。

小题1:在美国省略介词的地方,英国人会使用介词。

The British use prepositions__(1)____ Americans sometimes ___(2)____ them.

小题2:于是面具的使用就受到了法律条文的限制,这最早可以追溯到14世纪。

The use of masks was limited by laws, the first of ___(3)__  ___(4)__ back to the fourteenth century.

小题3:这两种变体的另两个不同之处是拼写和发音。

The other two areas__(5)___ which the two varieties _(6)___ are spelling and pronunciation.

小题4:很多路况都不好,事故频繁发生。

Many roads are in bad ___(7)____and accidents are ____(8)_____.

小题5:但经常他们只是从他身边驶过,把人体交通标志看作是理所当然的事情。

But often they just pass by,__(9)_____ the human traffic____(10)____for granted.

小题6:最后一次经历给他带来了深刻的影响。

This last experience has a ___(11)__ ___(12)____on Timoteo.

小题7:但我说服了他帮我的忙,找到了他们拴在汽船另一边的小船。

But I _____(13)__ him to help me, and we found the men’s boat ____(14)___ to the others side of steamboat.

小题8:当他听到这些话时,吉姆惊慌失措并跑向木筏。

When he heard these words, Jim __(15)____ and ran to the ___(16)_____.

小题9:他很早就离开了学校,还是青少年的时候就下决心要去南美洲发财,于是他离开家乡密苏里洲的翰尼堡,动身去了新奥尔良。

He left school early and as an adolescent, _____(17)____ to make his fortune in South American, set off from his home in Hannibal, Missouri, ______(18)_____ New Orleans.

小题10:尽管没有人清楚地看到这个神秘怪物的真面目,但当地一个摄影师薛俊林声称,怪物的头看起来像马头。

Although no one really got a clear look at the___(19)____creature, Xue Junlin, a local photographer, ____(20)___ that its head looked like a horse.

单项选择题