精英家教网 > 高中英语 > 题目详情

— Do you smoke?

— No, I don’t. But I used to. It’s 20 years since I ______.

A. didn’t smoke B. have smoked C. smoked D. began to smoke

 

C

【解析】

试题分析: 句意:--你吸烟吗?--不,我不吸烟。但是我过去吸烟。我有二十年不吸烟了。Since 引导的从句应该用一般过去时态,排除B。而since引导的时间状语从句中的动词如果是延续性动词,表示从这个动作结束时,译为“自从不…”;如果是短暂性动词,表示从这个动作开始,译为”自从….”.本句中smoke是延续性动词,而且从前面内容可知说话人已经不再吸烟,故选C。

考点:考查状语从句

 

练习册系列答案
相关习题

科目:高中英语 来源:2015届湖北黄冈蕲春第一高级中学高二下期中英语试卷(解析版) 题型:单项填空

There are some book shelves in the back of our classroom, on which are various magazines and reference books, making reading materials more _____________to the students.

A. appropriate B. effective

C. sensitive D. accessible

 

查看答案和解析>>

科目:高中英语 来源:2015届湖北浠水实验高级中学高三上期中英语试卷(解析版) 题型:单项填空

The exciting news that Mo Yan won the 2012 Nobel Prize for literature renewed people’s enthusiasm towards literature, which is a great ________ to the development of Chinese literature.

A. motivation B. competition

C. commitment D. recognition

 

查看答案和解析>>

科目:高中英语 来源:2015届湖北咸宁高三三校联考英语试卷(解析版) 题型:单项填空

Words mean more than what is _____ on paper. It takes the human voice to fill them with shades of deeper meaning.

A. set off B. set up

C. set down D. set aside

 

查看答案和解析>>

科目:高中英语 来源:2015届浙江省协作体高三第一次适应性测试英语试卷(解析版) 题型:阅读理解

Australian scientists say an organic compound(复合物) used by Indian women to paint dots or bindi on their foreheads could hold the key to a breakthrough in cancer treatment. Rose Bengal was first used in the early 1900s as a dye for food, textiles and cosmetics. But now it is proving to be a useful weapon in the fight against skin cancer.

Television advertisements constantly warn of the dangers of overexposure to the fierce sun. Among them is the possibility of the disease melanoma(黑瘤), a type of skin cancer. More than 1,200 Australians die every year from the disease.

Initial trials of a solution of Rose Bengal injected into some melanoma cells have had a 75 percent success rate in controlling the disease. Professor John Thompson, the director of the Melanoma Unit at the University of Sydney, says this organic dye could become a powerful cancer-fighting treatment.

“We believe it works by getting into the tumor(肿块) cells and causing them to self-destruct. But the exact mechanism by which it works is not totally clear. It’s not useful for people who have a primary melanoma. The treatment of primary melanoma is surgical excision(切除),”he said. “It’s useful to inject tumors for people who have recurrences; when the primary treatment has failed and when recurrence in the area, or at more distant sites has occurred.”

About 90 percent of Australians who develop melanoma survive thanks to early diagnosis and treatment. If left untreated, however, the disease can be fatal.

Convincing younger people in Australia about the dangers of overexposure to the sun is a battle campaigners are constantly waging.

Veronica Manock, a 21-year-old student, had two major operations to remove a cancerous tumor from her leg.

“I’ve had a lot of friends who just said ‘I thought it was just, you know, I’ll get a mole(痣) cut out and that’s it’, whereas I don’t think people realize how much danger they’re putting themselves into and how easy it is to stop something like this happening to you just from doing little things,”said Marock.

Other researchers in Australia are investigating genetic treatments to skin cancer. There is a pressing need for such research to produce effective treatments. Australians, the majority of whom are fair-skinned(浅肤色的), are four times more likely to develop a melanoma than people in Canada, the United States or Great Britain.

1.The information about Rose Bengal is wrong EXCEPT that .

A. it is no longer used as a dye

B. it is used to cure skin cancer

C. it is a special kind of rose planted in Australia

D. it can be effective in treating skin cancer

2.The main reason for Australia’s high rate in skin cancer is .

A. the overuse of cosmetics

B. overexposure to the sun

C. the color of their skin

D. the lack of prevention

3.From the passage we can learn that .

A. skin cancer is incurable

B. some young people seem to know little about the danger of overexposure to the sun

C. about ninety percent of Australians are likely to develop melanoma

D. all moles should be cut out to prevent skin cancer

4.According to Professor John Thompson, the best way to deal with primary cancer is .

A. injecting tumors

B. taking some medicine

C. getting genetic treatment

D. having surgical excision

5.The passage was intended for .

A. general readers

B. people who like taking sun-bathing

C. doctors and researchers

D. children at school

 

查看答案和解析>>

科目:高中英语 来源:2015届浙江省协作体高三第一次适应性测试英语试卷(解析版) 题型:单项填空

Some government officials in the USA have pointed out that the death of Osama Bin Laden means keen vigilance (警戒) _____ the end of terrorism.

A. more than B. better than C. other than D. rather than

 

查看答案和解析>>

科目:高中英语 来源:2015届浙江省协作体高三第一次适应性测试英语试卷(解析版) 题型:单项填空

– I heard you gave a big surprise to your mother on Mother’s Day.

– Yes. Only when I left my parents ______ how much I loved them.

A. I realize B. I had realized C. had I realize D. did I realize

 

查看答案和解析>>

科目:高中英语 来源:2015届浙江省温州市十校联合体高三第一次月考英语试卷(解析版) 题型:单项填空

The police were seeking more information to find out________ killed the rich merchant.

A. who it was that B. who was it that

C. it was who D. who was it

 

查看答案和解析>>

科目:高中英语 来源:2015届浙江省高三9月月考英语试卷(解析版) 题型:单项填空

--- How are you, Jack?

---_________, I’m rather sick.

A. In additionB. As a matter of fact

C. On the other handD. On the contrary

 

查看答案和解析>>

同步练习册答案