题目内容
---Mr. Johnson, would you have some more ice-cream?
---No, thanks. It’s very good, but I have to _____ my weight, you know
- A.remain
- B.notice
- C.watch
- D.care
试题分析:考查动词辨析:句意:--Johnson先生,你想再吃些冰淇淋吗?--不谢谢。这很好,但我要注意自己的体重了。Remain 指保持,仍然,Notice 指通知,注意到,Watch 此处表示要注意,要引起重视了,有警惕的意味,care和about搭配,是在乎,关心,与题意不符,选C。
考点:考查动词辨析
Although man has known asbestos (石棉) for many hundreds of years, it was not until 160 years ago that it was mined for the first time on the North American continent. H.W.Johns, owner of a New York City Supply Shop for roofers, was responsible for the opening of that first mine.
Mr.Johns was given a piece of asbestos which had been found in Italy. He experimented with the material and then showed its surprising powers to his customers. After putting on a pair of asbestos gloves, which looked much like ordinary work gloves, he took red-hot coals from the fireplace and played with them in his hands.How astonished the customers were to discover that he was not burned at all.You can well imagine that he had increasing business in asbestos roofing materials. However, because it was very expensive to transport them from Italy to the United States, Mr.Johns sent out a young scientist to seek a source nearer home. This young man found great vein(岩脉), in the province of Quebec in Canada.
Ever since 1881 Quebec has led the world in the production of this unusual mineral, which is made up of magnesium, silicon, iron, and oxygen.When it is mined, the asbestos is heavy, just as you would expect a mineral to be.When it is separated, a strange thing happens: the rock breaks down into fine, soft, soapy fibres.
Scientists do not know why the rock can be separated easily into threads, but they have found thousands of uses of this fireproof material, of the so-called “cloth of stone”.
【小题1】Which title best expresses the main idea of this passage?
A.Asbestos mined in Canada | B.Fireproof matter |
C.A “wonder” mineral | D.A new roofing material |
A.going into roofing business | B.carrying asbestos from Italy |
C.sending a trained scientist | D.showing the use of asbestos gloves |
A.It is like thread. | B.It feels soapy. |
C.It burns easily. | D.It is unusually heavy. |
A.show the need for more scientists |
B.compare asbestos with other minerals |
C.increase the sales of asbestos |
D.present facts about asbestos |