满分5 > 高中英语试题 >

The scientist __________ the experiment ...

The scientist __________ the experiment for half a year, but he _______ yet.

A.made; didn’t succeed

B.made; hasn’t succeeded

C.was making; didn’t succeed

D.has been making; hasn’t succeeded

 

D 【解析】考查时态。根据for half a year可知应该使用完成时,再根据句意可知完成进行时符合句子的意思。Yet也和完成时连用。结合句意可知D正确。句意:半年来那位科学家一直在做那个实验,但他还没有成功。
复制答案
考点分析:
相关试题推荐

Seeing the picture, I couldn’t resist ______the days_____ we spent together.

A.to think of; when

B.thinking of; which

C.to think of; which

D.thinking of; when

 

查看答案

— “ The music is too loud. Could you please turn down the radio a bit?”

— __________________

A.Sorry. I didn’t know you were reading.

B.Thank you. It’s very kind of you.

C.Don’t trouble. I like music.

D.Oh, it’s an honor for me to do so.

 

查看答案

The cakes are delicious. He’d like to have______ third one, because ______ second one is rather too small.

A.a ; a

B.the; the

C.a; the

D.the; a

 

查看答案

最近,某中学生英文报开设了“After-class Activities”的栏目。请你根据以下提示,为该栏目写一篇英文稿件,并鼓励同学们积极参加课外活动。

  1. 你校开展课外活动的情况; 

2. 你参加过的课外活动及给你带来的益处;

3. 为学校开展课外活动提出建议;

 4. 鼓励大家积极参加课外活动。

首句已给出,可适当发挥,字数100 字左右。

After-class Activities

Nowadays, after-class activities are becoming more and more popular in high schools.

                                                                     

                                                                     

                                                                     

                                                                 

 

查看答案

Celebrating sleep

World Sleep Day, observed on 21 March, was created to bring attention to the growing number of sleep problems worldwide. Sleep is a natural part of human life, but many people in the modern world ignore its importance. As a result, sleep problems are increasingly common.

In 2002, scientists at the University of Athens in Greece conducted a survey of over 35,000 people in 10 countries around the world, including China, Belgium and South Africa. Of the people that responded to the survey, 24 percent said that they did not sleep well, and based on their responses, 31.6 percent were diagnosed (诊断)with insomnia(失眠)and another 17.5 percent were diagnosed with borderline insomnia. In addition, 30.7 percent of survey respondents reported visiting a doctor for help with sleep problems and 11.6 percent said that they felt very sleepy during the day.

Overall, the survey found that ninny people suffer the effects of poor quality sleep, some examples of which are being unable to fall asleep and waking up in the middle of the night. The main factors causing these problems are pressure from school or work and a fast pace of life, but noise pollution and light pollution also interfere with sleep and contribute to poor quality sleep. The survey’s findings are particularly troubling because large numbers of people were found to have difficulty sleeping at night. The short-term effects of this are tiredness and trouble concentrating. If this happens for a long time, the risk of putting on weight and having a heart attack may increase.

There are many things you can do to improve the quality of your sleep. First, you should have regular sleep habits. Try to go to bed and wake up around the same time each day. You also need to make your bedroom a cool, dark, quiet place to sleep so that heat, light and noise do not disturb you. At night, you should also avoid things that contain caffeine, such as chocolate, coffee, tea and many soft drinks, as caffeine may keep you from sleeping.

     Getting a good night's sleep is important for everyone. By following the advice above, you can rest better at night and work better during the day.

                     Title: Celebrating Sleep

Topic

Context

World Sleep Day

Due to ignorance of the importance of sleep problems, people observe Mar. 21, World Sleep Day to bring  (78)  ▲   to the problem.

Responses of the survey

1). Of 3, 5000 people in 10 countries in the world, there were 24 percent of the people saying they didn’t sleep well.

2). 31.6 percent were diagnosed with insomnia and another 17.5 percent were on the borderline of sleeplessness.

3). The (79)    ▲     of the people feeling sleepy during the day is 11.6.

4) 30.7 percent reported (80)    ▲    to a doctor for sleep problems.

(76)   ▲    causing sleep problems & their consequences

1).Under (81)   ▲    from school or work, people may have sleep problems.

2). Noise or light pollution(82)  ▲  to poor quality sleeps.

3).Sleepless people may easily (83)  ▲  weight and have a heart attack.

4). Feeling fired and sleepy, people find it (84)to concentrate.

(77)    ▲    to  take  to improve sleep quality

1). Have regular sleep habits.

2). Make your bedroom cool, dark and quiet.

3). Avoid things (85)   ▲    caffeine.

 

查看答案
试题属性

Copyright @ 2008-2019 满分5 学习网 ManFen5.COM. All Rights Reserved.