题目内容

--- Jack, could you tell me for travelling this summer?

---We plan to go and see the beautiful sea in Hainan.

A. where your family will go B. how will your family go

C. how your family will go D. where will your family go

A 【解析】句意:——杰克,你能告诉我你的家人今年夏天要去哪里旅行吗?——我们计划去海南看看美丽的大海。根据could you tell me可知后面引导的是宾语从句,在宾语从句中语序应该为陈述语序,B选项是how+一般疑问句,D选项是where+一般疑问句,所以排除B、D选项。根据答语We plan to go and see the beautiful sea in Hainan.可知此...
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Today,an increasing number of people are always looking at their mobile phones with their heads down.These people are 1. the “Heads-down Tribe”.Heads-down tribe members now can be seen everywhere.

There are more and more traffic 2. because lots of drivers use mobile phones while driving.In order to make drivers pay more 3. to driving,some new traffic rules have been made.

As we can see above,using mobile phones may 4. traffic accidents.Also,more and more interesting and strange facts happen to the “Heads-down Tribe”.A man in America kept 5. his mobile phone on his way home.As 6. result,he knocked into a big lost bear.When he lifted 7. eyes from the phone,he was so afraid that he turned around and ran away as 8. as possible.Another fact is that we can often see people in the restaurant eating face to face but looking at their own mobile phones.It’s strange9. they don’t talk to the ones who sit opposite to them during the meal.Some of them even have fun communicating with others on the phone.

Mobile phones are helpful and necessary tools for modern life.Whether they are good or not depends 10. how people use them.Let’s be “healthy” users and try to be the “Heads-up Tribe”.

1.called 2.accidents 3.attention 4.cause 5.using 6.a 7.his 8.quickly/fast 9.that 10.on 【解析】本文介绍了现在很多人低头玩手机,被称为“低头族”。司机开车时使用手机,导致更多交通事故,人们吃饭时玩手机,不和别人交谈。作者认为手机是现代生活中有益的,必要的...

Could smells affect your lifespan? Female fruit flies (果蝇) without the ability to smell food live longer than other fruit flies.The sense of smell may be connected to the cellular ageing (细胞老化) process in many other living things even people.Such connection has recently been found in both worms and flies.For example, scientists found that removing fruit flies' ability to smell made them live nearly 20 percent longer than flies with a sense of smell.

They confirmed that food smells were the ones most likely to affect ageing, as nutrition (营养) and lifespan are known to be connected in many living things.To test the idea that food smells affect lifespan, they removed flies' ability to smell carbon dioxide, which is produced by some fly foods.They left the rest of the smelling system.

This action had no effect on male flies, but the females lived 30 percent longer than normal.Removing the ability to smell CO2 may stop flies getting information about food availability.This could mean that food is not enough, causing processes that encourage

flies to survive.Scientists found that the female flies from stored extra fat and that both males and females immune (免疫) to CO2 were stronger against the stress than normal flies.It is suggested that females may simply be easily influenced by the smells of CO2.

Scientists point out that people don't know whether ageing and smell are connected in animals and humans.But they clearly experience physical changes after smelling food.

1.From the passage, we learn that what scientists found is to ________.

A. show there is the best way to make lifespan longer

B. tell us we should remove our smell ability to live long

C. show the sense of smell can affect the cellular ageing process

D. explain fruit flies without ability to smell can live longer

2.Scientists do some research to prove

A. the immune system of flies to CO2

B. the connections between nutrition and lifespan

C. the importance of food smells to our humans

D. the connections between food smells and lifespan

3.According to scientists' opinion, we can see that ________.

A. flies without ability to smell is encouraged to store extra energy

B. male flies in general can live longer than female ones

C. both male and female flies can live longer without the ability to smell

D. flies without ability to smell can also get information about food availability

4.Which of the following best describes the passage as a whole?

A. CO2 has few effects on female flies.

B. The sense of smell might have an effect on living things.

C. The sense of smell is necessary to humans' health.

D. Female fruit flies can always live longer than male flies.

1.C 2.D 3.A 4.B 【解析】试题分析:本文谈论的是食物气味与寿命之间的联系。科学家通过对雌性果蝇和雄性果蝇嗅觉的对比研究,证实了食物气味是最有可能影响衰老的因素。 1.题意:从这篇文章中,我们了解到科学家们的发现是 。考查细节理解题。根据第二句开头They confirmed that food smells were the ones most like...

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