问题 单项选择题

19世纪的一项重大发明导致制蜡业产生了革命性的变化,也使得照明成为了普通老百姓的现实。在19世纪的早期和中期,人类发现了利用碱和硫酸提炼动物脂的工艺,其产品硬脂比没有提炼的动物硬脂更加坚硬,燃烧时间也更长。这一发明创造意味着人类可以生产出点燃时无太多烟尘和太臭气体的脂蜡。
下列关于19世纪人类发明了硬脂产品以后的各项说法中正确的一项是()

A.蜡燃烧时没有太多烟尘

B.蜡燃烧时散发出香味

C.蜡没有达到普通使用

D.蜡燃烧时间不长

答案

参考答案:A

解析:

本题要在原文中寻找答案。短文开头中“使得照明成为了普通老百姓的现实”说明蜡已经开始普遍使用,所以,去除选项C。第二句话中“燃烧时间也更长”可以将选项 D排除。而末尾中“这一发明创造意味着人类可以生产出点燃时无太多烟尘和太臭气体的脂蜡”可以直接选出A为正确答案,并否定选项B。

完形填空

I. 根据首字母和上下文完成句子:

1、We Chinese have friends t          the world.

2、A large v          is a must if you want to learn a language well.

3、A good advertisement should have persuasive language and c         images.

4、Both English and French are o        languages of Canada.

5、Overwork, little rest and poor food all c        to his illness.

6、With the d         of science and technology, more new products are made.

7、I think Tom will be a good r        when you are away.

8、A well written article should have both a good beginning and a good e         .

9、Tens of people were killed, some children i         .

10、The word “not” are p         differently in the UK and the USA.

11、Our school is a non-smoking one. So smoking is b      in our school.

12、She smiled to me, i        that she had seen me.

13、This is just a copy. Where is the o       ?

14、The story is written in s       English, so it’s easy for you to understand.

15、Water is the c       of oxygen and hydrogen.

16、The blacks are fighting against r       discrimination,

17、When you look into a mirror, you will see the r        image of yourself.

18、To build up your body, you should take exercise and do some p        labour.

19、Do you have any e       methods for studying the English language?

20、Taiwan is separated from m       of China by Taiwan Strait.

单项选择题