Sunglasses can ___ us from strong sunlight.

A. hold   B. prevent    C. protect   D, make

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：單選題

Parents should take seriously their children's requests for sunglasses ________ eye protection is necessary in sunny weather.


  1. A.
    because
  2. B.
    though
  3. C.
    unless
  4. D.
    if

查看答案和解析>>

科目：高中英語 來源：2013屆吉林省四校聯(lián)合體高三第一次診斷性測(cè)試英語試卷（帶解析） 題型：單選題

____ about the man wearing sunglasses during night that he was determined to follow him．

A．So curious the detective wasB．So curious was the detective
C．How curious was the detectiveD．How curious the detective was

查看答案和解析>>

科目：高中英語 來源：黑龍江省雙鴨山一中2010屆高三上學(xué)期期末考試 題型：閱讀理解


Babies born in summer are more likely to become short-sighted in late life, a study has shown.
As many as a quarter of all cases of short-sightedness are caused by too great an exposure to sunlight in the first weeks of life, say eye experts.
They are advising all parents to put sunglasses on their babies during the first weeks.
Scientists had already established that over-exposure to sunlight caused shortsightedness in animals.
Researchers who compared the months in which babies were born with whether they needed glasses later on say the principle also applies to humans.
A study of almost 300,000 young adults-the largest of its kind-showed that those born in June and July had a 25 per cent greater chance of becoming severely short-sighted than those born in December or January.
Research leader Professor Michael Belkin, of Tel Aviv University, said it was because prolonged illumination(光照) causes the eyeball to lengthen-causing short-sightedness.
Hence the more light a newborn is exposed to, the more the eyeball lengthens and the worse the short-sightedness will be.
The mechanism which lengthens the eyeball is associated with levels of melatonin(褪黑激素), a pigment (色素) which protects the skin against harmful rays of the sun.
In young babies not enough melatonin is released as protection, meaning they are more vulnerable to sunburn and changes to eyeball shape.
Sight expert Professor Daniel O’Leary, of Anglia Ruskin University in Cambridge, said “At the moment we don’t know the precise cause of why light exposure affects sight, but the evidence seems to prove that it is one of the reasons for people becoming shortsighted.”
67. Babies born in summer are more likely to be shortsighted ____________.
A. because the summer sun is too strong for babies
B. because babies born in summer have lengthened eyeballs
C. if they are exposed to much sunlight in the first weeks after they are born
D. if parents don’t know a proper way to protect their babies’ eyes
68. Melatonin is a kind of material to ___________.
A. prevent the eyes from becoming near-sighted
B. protect the skin from harmful sun rays
C. make our body strong
D. protect babies’ eyes from summer sun
69.From what Professor Daniel O’Leary says we can conclude that ___________.
A. there is no evidence that shortsightedness is related to exposure to sunlight
B. whether light exposure affects sight still needs to be further proved
C. he believes that light exposure can cause shortsightedness
D. he tries to give the cause of why light exposure affects sight
70.The underlined word “vulnerable” in the passage probably means __________.
A. easy to be harmed                         B. resistant
C. protective                               D. changeable

查看答案和解析>>

科目：高中英語 來源：2014屆浙江省樂清市高二第二次月考英語試卷（解析版） 題型：完型填空

At least thirty times Bobby has attempted to climb the big snowy mountain, but he had never reached the top. His friend old Peeper, who knew a lot about his failures,  26  Bobby to try again. He gave Bobby a pair of  27  and said, “If it starts clouding over, put on the glassed, or if your feet start hurting, put them on too. The glasses are very  28  . They’ll help you.” Bobby accepted the gift without much thought.

The day came when he was to have another try. About two hours after he started, he felt his feet hurting. Then he  29 what Peeper had said, and put on the glasses. The pain was pretty bad, but  30 the sunglasses he could see the snow-covered mountain top, so he went on.

31  , clouds were gathering. But this time Bobby could still see the  32  through the clouds. He kept climbing, leaving the clouds behind, forgetting his pain, and finally arriving at the top. It was certainly worth it. His feeling of  33  was extremely good, almost as great as that  34  view. The mountain below was surrounded by a sea of clouds. He couldn’t that the clouds were as  35  as that, so he looked more closely at the sunglasses, and discovered the secret. Peeper had engraved (鐫刻) the snow-covered mountain top on the sunglasses,  36  Bobby could see it when he was looking upwards!

Bobby  37  that the only obstacle (障礙) to reaching the top had been losing  38  when he couldn’t see the mountain top. He was thankful that Peeper had used that little  39  to help him see that his  40  was never impossible, and that it was still there, where it had always been.

1.                A．ordered        B．encouraged      C．a(chǎn)llowed   D．warmed

 

2.A. gloves      B. trousers        C. sunglasses   D shoes  

3.A. real         B. safe           C. expensive    D special

4.A. expressed   B. remembered    C. shouted     D regretted

5.                A．with           B．under          C．for D．a(chǎn)bout

 

6.                A．Happily         B．Hopefully       C．Unnecessarily  D．Unfortunately

 

7.                A．top            B．friend          C．climber   D．village

 

8.                A．decision        B．success         C．freedom D．friendship

 

9.                A．strong          B．popular         C．wonderful D．familiar

 

10.               A．cool           B．natural         C．wide D．thick

 

11.               A．or             B．a(chǎn)nd            C．if D．though

 

12.               A．realized        B．suggested       C．expected D．a(chǎn)nnounced

 

13.               A．love           B．help           C．heart D．face

 

14.               A．word          B．trick           C．plan  D．opinion

 

15.               A．position        B．lesson          C．story D．a(chǎn)im

 

 

查看答案和解析>>

科目：高中英語 來源：2011年陜西省高二下學(xué)期期末考試英語題 題型：閱讀理解

Geena David knew she wanted to be a movie star when she was very young. She was not sure what gave her the idea, but she wanted to look like a movie star. “I have a lot of pictures from my childhood of me wearing sunglasses,” she says. “I used to wear them to watch TV.”

　 Early movie actors started wearing sunglasses not because they looked good, but because their eyes hurt. The lights used on movie sets were extremely bright and could cause a painful problem known as “Klieg eyes”. It was named after the Klieg brothers who invented the lights. Actors wore sunglasses to give their eyes a rest. But when movie stars began wearing their sunglasses in public, they quickly became a must.

　 Eventually actors started wearing sunglasses in their movies as well as on the street. Audrey Hephburn wore ultra-cool Ray-Ban sunglasses in the 1961 movie, Breakfast at Tiffany’s. As a result, Ray-Ban sunglasses started to appear more and more in the movies. In 1979, Ray-Ban “Wayfarers” were worn by Jake and Elwood in The Blue Brothers. Tom Cruise wore Ray-Ban “Aviator” sunglasses in the 1986 hit, Top Gun. Then in 1997, Will Smith and Tommy Lee Jones made Ray-Ban “Predator” sunglasses famous in Men in Black.

　  Of course sunglasses aren’t just a fashion statement. The main reason to wear sunglasses is to protect our eyes against UV radiation. UV radiation can damage our eyes, so people now choose their sunglasses carefully. But you don’t have to give up style for safety. The choice of frames and lenses available these days is huge. So you can protect your eyes and still be the coolest person on the beach.

1.What is mainly discussed in this passage?

   A. The use of sunglasses.     B. The history of sunglasses.

   C. The sunglasses wearing.   D. Why movie stars like to wear sunglasses.

2.Why did Geena David like to wear sunglasses?

A. She was a movie star.   

B. She wanted to follow a movie star.

C. Wearing sunglasses was good to her eyes.

D. It was good to wear sunglasses when watching TV.

3.Early actors’ eyes hurt because ______.

A. they wore sunglasses        

B. they went out in the sun too much

    C. the lights on movie sets were too bright

    D. their scripts were written in very small writing

4.Now people wear sunglasses ______.

    A. just to protect their eyes    B. for fashion and to protect their eyes

    C. because of bright lights      D. because movie stars wear them

 

查看答案和解析>>

同步練習(xí)冊(cè)答案