题目内容

Our English teacher is wearing a gold watch, ________are made of small diamonds

A. whose the hands B. of which hands C. the hands of which D.the hands of whom

 

C

【解析】

试题分析:考查定语从句。句中先行词为a gold watch,在从句中作the hands of的宾语,也可以用whose hands。句意:我们英语老师戴着一块金表,其指针是由小钻石组成的。故C正确。

考点:考查定语从句

 

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Water runs downhill from mountaintops to streams to rivers to oceans. But downhill isn’t the only way that water moves .A new study measures how water travels from country to country for human consumption. This flow isn’t the type we usually think about .These scientists looked at the water used to grow and make the products which get shipped from nation to nation as imports or exports. They call this a flow of“virtual water(虚拟水)”.

We typically think about water as the liquid that flows from a tap. However,92%of the water used by people goes into growing crops,according to water researcher Arjen Hoekstra. He recently studied the hidden travels of virtual water used in products made from things like crops and meats .These products are shipped around the world.

For example.consider a sugary soft drink. Hoekstra estimated that to produce one half-liter of the drink requires between 170 and 310litersofthewater—about 95%—is used to grow and process the ingredients(原料).Another 4%goes into the packaging and labeling. In Hoekstra’s calculation, when one country produces a half-liter of soda and sells it abroad,it exports as much virtual water as would fill a large refrigerator.

According to Hoekstra’s new report,dry countries like Israel and Kuwait,both in the Middle East, get the majority of their virtual water from other countries,through imported products. More surprisingly, some wetter countries,like the Netherlands and the United Kingdom, also get the majority of their virtual water from other places. That means that most of the water used to grow or produce the products and food consumed in those countries came from other countries.

In the United States most of the virtual water used comes from American sources .In China even less of the water associated with its products

1.What is the best title for the passage?

A. Crops and Virtual Water B. Import and Export of Water

C. Benefits of Virtual Water D. Water’s worldwide travels

2.The first paragraph is intended to talk about__________.

A. how water flows

B. what virtual water is

C. where virtual water exists

D. why water is imported and exported

3.The example of a sugary soft drink in Paragraph 3 is given to show_________.

A. how drinks are made B. how virtual water is used

C. how virtual water is exported D. how drinks are shipped

4.In which countries does most part of virtual water come from outside?

A. lsrael and America B. America and the Netherlands

C. China and the United Kingdom D. Kuwait and the Netherlands

5.The passage is most probably a_________.

A. science news report B. book review

C. newspaper advertisement D. science fiction story

 

A recent study suggests that teens’ relationship with parents, friends and teachers may have a lot to do with why they don’t get a good night’s sleep.

David Maume, a sociologist and sleep researcher, analyzed federal health data, which interviewed 974 teenagers when they were 12, and then again at 15. He found that family dynamics (动态) have much to do with how well kids sleep. Teens, who had warm relations with their parents and felt like they could talk to them or their parents were supportive of them, tended to sleep better. However, families that were going through a divorce or a remarriage tended to affect teens’ sleep.

And problems at school also affected teens’ sleep. Feeling safe at school and having good relations with teachers tended to promote better sleep. As did good relationships with friends. Kids who took part in sports or other positive social activities or shared similar academic goals with their friends were also more likely to get a good night’s sleep.

These add up to what makes lots of sense: a general feeling of well-being helps teens sleep. If we’re happy and contented, we’re much more likely to sleep better than if we’re sad and anxious.

Now, of course, teens can hardly resist being drawn to their computers and social networking. Maume also found that when parents were strict not only about bedtime, but also about limiting technology, kids slept better. It’s a finding that seems obvious, but parents really do matter when it comes to health habits of their teenagers.

Clearly, teenagers aren’t getting 9 to 10 hours a night, which puts them at risk for all the consequences of lack of sleep, including poor academic performance, colds and stress.

1.What is the passage mainly about?

A. Teens’ sleep is linked to their relationship with people around them.

B. Lack of adequate sleep puts teens at risk of many bad consequences.

C. Modern technology has something to do with teens’ sleep problems.

D. It is necessary for teens to join in sports and positive social activities.

2.According to Maume’s analysis, who will probably have a poor night’s sleep?

A. Teens who feel like talking with their parents.

B. Teens who have friends sharing their dreams.

C. Teens who feel contented about themselves.

D. Teens who lack a sense of security at school.

3.Para 5 functions as .

A. a comparison B. an introductionC. a conclusionD. an addition

4.Parents are supposed to when their kids are growing up.

A. continue their broken marriageB. allow children to decide when to sleep

C. limit teens’ using new technologyD. force teens to have 10 hours’ sleep daily

 

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