题目内容

Sun-glasses are usually worn to ______ the eyes from strong sunlight.

A. prevent　　 B. care　　 C. defend　　 D. protect

 

D

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Many people believe the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several hours of “snow light”. The United States Army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country. A man's eyes frequently find nothing to focus on in a broad expanse of barren snow-covered terrain(地域). So his long look continually moves and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and eyeballs become sore and the eye muscles ache. Nature offers this discomfort by producing more and more liquid which covers the eyeball. The liquid covers the eyeball in increasing quantity until vision became not clear, and then is not easily seen and the result is total, even though not very long, snowblindness.
Experiments led the Army to a simple method of solving this problem. Scouts, ahead of a main body of troops, are trained to shake snow from evergreen bushes creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their eyes focus on a bush and have something to see. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white terrain is solved.
1. The first paragraph is mainly concerned with ________.
A. need for dark glasses      
B the whiteness from snow
C. headaches, watering eyes and snowblindness 
D. snow glare and snowblindness
2. According to the author, recent work on snowblindness shows that it is caused by ________.
A. exposure to bright light
B. failure to focus on an object
C. a loss of vision which doesn't last long
D. focusing on dark colored objects for a very long time
3. Suppose you walk across a completely snow-covered area, what should you do to solve the problem of snowblindness?
A. By wearing dark sun glasses.
B. By throwing an extra pair of black shoes ahead.
C. By asking the Army for help.
D. By walking backwards.
4. A suitable title for this passage would be ________.
A. Snowblindness and How to avoid it     B. Soldiers in Snow　　
C. Nature's Cure for Snowblindness       D. Snow Vision

It doesn't come as a surprise to you to realize that it makes no difference what you read or study if you can't remember it．You just waste your valuable time．1  One dependable aid that does help you remember what you study is to have a specific purpose or reason for reading．
Why does a clerk in a store go away when your reply to her offer to help is, "No, thank you．I'm just looking．"? Both you and she know that if you aren't sure what you want, you are not likely to find it．But suppose you say instead, "Yes, thank you．I want a pair of sun glasses．" She says, "Right this way, please．"
__2_ If you choose a book, "just looking" for nothing in particular, you are likely to get just that—nothing．But if you do know what you want, you are almost sure to get it．Your reasons will vary; they will include reading or studying "to find out more about", "to understand the reasons for" and "to find out how"．
__3__ Before you start to study, you say to yourself something like this, "I want to know why Stephen Vincent Benet happened to write about America"．Because you know why you are reading or studying, you relate the information to your purpose and remember it better．
4 At least two important processes go on at the same time．As you read, you take in ideas rapidly and accurately．But at the same time you express your own ideas to yourself as you react to what you read．You have a kind of mental conversation with the author．
This additional process of thinking about what you read includes evaluating it, relating it to what you already know, and using it for your own purposes．__5__ One part of critical reading, as you have discovered, is distinguishing between facts and opinions．Facts can be checked by evidence, Opinions are one's own personal reactions．Another part of critical reading is judging sources．Still another part is drawing accurate inferences．

A．Maybe you have already discovered some clever ways to keep yourself from forgetting．
B．It is important for students to have a positive attitude to their study．
C．You remember better when you know what you' re reading．
D．In other words, a good reader is a critical reader．
E．It’s quite the same with your studying．
F．Reading is not one single activity．
G．This is the way it works．

It makes no difference what you read or study if you can't remember it. You just waste your valuable time．【小题1】  One dependable aid that does help you remember what you study is to have a specific purpose or reason for reading．
Why does a clerk in a store go away when your reply to her offer to help is, “No, thank you．I'm just looking.”? Both you and she know that if you aren't sure what you want, you are not likely to find it．But suppose you say instead, “Yes, thank you．I want a pair of sun glasses.” She says, “Right this way, please”
 【小题2】  If you choose a book, “just looking” for nothing in particular, you are likely to get just that--nothing．But if you do know what you want, you are almost sure to get it．Your reasons will vary; they will include reading or studying “to find out more about”, “to understand the reasons for” and “to find out how”．
 【小题3】  Before you start to study, you say to yourself something like this, “I want to know why Stephen Vincent Benet happened to write about America”．Because you know why you are reading or studying, you relate the information to your purpose and remember it better．
【小题4】  At least two important processes go on at the same time．As you read, you take in ideas rapidly and accurately. But at the same time you express your own ideas to
yourself as you react to what you read. You have a kind of mental conversation with the author．
This additional process of thinking about what you read includes evaluating it, relating it to what you already know, and using it for your own purposes．【小题5】  One part of critical reading, as you have discovered, is distinguishing between facts and opinions．Facts can be checked by evidence, opinions are one’s own personalreactions．Another part of critical reading is judging sources．Still another part is drawing accurate inferences．

A．Maybe you have already discovered some clever ways to keep yourself from forgetting．
B．It is important for students to have a positive attitude to their study．
C．You remember better when you know what you' re reading．
D．In other words, a good reader is a critical reader．
E. It’s quite the same with your studying．
F. Reading is not one single activity．
G. This is the way it works．

 

Many people believe the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several hours of “snow light”. The United States Army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country. A man's eyes frequently find nothing to focus on in a broad expanse of barren snow-covered terrain(地域). So his long look continually moves and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and eyeballs become sore and the eye muscles ache. Nature offers this discomfort by producing more and more liquid which covers the eyeball. The liquid covers the eyeball in increasing quantity until vision became not clear, and then is not easily seen and the result is total, even though not very long, snowblindness.

Experiments led the Army to a simple method of solving this problem. Scouts, ahead of a main body of troops, are trained to shake snow from evergreen bushes creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their eyes focus on a bush and have something to see. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white terrain is solved.

1. The first paragraph is mainly concerned with ________.

A. need for dark glasses      

B the whiteness from snow

C. headaches, watering eyes and snowblindness 

D. snow glare and snowblindness

2. According to the author, recent work on snowblindness shows that it is caused by ________.

A. exposure to bright light

B. failure to focus on an object

C. a loss of vision which doesn't last long

D. focusing on dark colored objects for a very long time

3. Suppose you walk across a completely snow-covered area, what should you do to solve the problem of snowblindness?

A. By wearing dark sun glasses.

B. By throwing an extra pair of black shoes ahead.

C. By asking the Army for help.

D. By walking backwards.

4. A suitable title for this passage would be ________.

A. Snowblindness and How to avoid it     B. Soldiers in Snow　　

C. Nature's Cure for Snowblindness       D. Snow Vision

 

Introduction

Pear Lake is 1 kilometer west to Zhuwo Village, Yanchi Town, Mentougou District ,Beijing, its altitude is about 400 meters. In 1958 ,a reservoir was built, which was called as Zhuwo Reservoir at that time. Explored by Mentougou Tourism Office, the reservoir turned into a tour scenic spot and changed its name as “Zhenzhu lake”. Go upward along the lake, and you can experience the dam style, Xinghua Village,Sanxian Cave, Huxinshuangliu Island, 55 kilometers lake station, 24 Dongmingtielong, Asia’s first bridge ,Tongxin Islang,Shifang Bridge ,Hengliu Bay, Camping Island, Pearl Villas and Pear Lake.

Highlights

You can also visit an ago-old cave, “Gaibuyan” and frontier fortress ancient city, “Yanhe City”; ruins of the Great Wall “Seven Floor”, Xianren Cave, site of Boshan Temple and other attractions. At the same time, while viewing the sight-seeing, you can go fishing,play in the water, hunt, andtake leisure(空暇) and have a taste of delicious farm special disher. Water there is clear and as calm as a mirror; blue sky , white clouds , mountains and tree shadows are reflected in the water .It is known as Yanjing’s three small gorges (峡谷) of the north or Small Lijiang. It is surely a shining pearl of the valey of Yongding River of the western Beijing.

Traffic

Take bus 336 from Pingguoyuan Subway to Hetan; take Mid-size bus to Zhaitang and then transfer to small public bus to Zhenzhu Lake.

Pearl lake fee and opening hours

Admission 15yuan    Opening hours 8:00-17:30

Tips

① You had better use sun lotion (润肤霜) and sun glasses to avoid sun burn..

② Please bring enough memory card of your camera.

③ Please pay attention to climb mountain or walking in resort.

1.What can we know from the first paragraph?

A.Pearl Lake is one kilometers from Beijing.

B. Pearl Lake has been a reservoir nearly half a century.

C. Pearl Lake is surrounded by mountains.

D. Pearl Lake has a good place for picnics.

2.When we go to Pearl Lake ,we can ______.

A.enjoy scenes like those of South China

B.see it’s near a river of Western Beijing

C.get many delicious things to eat

D.drink the pure sweet water from the lake

3.What we should pay attention to if we go to visit Pearl Lake?

A.Traffic difficulties.

B.The weather.

C.Mountain view.

D.A tight schedule.

4.The passage must come from ______.

A.a text

B.a magazine

C.a newspaper

D.an advertisement

 

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