C

We all know what a brain is.A doctor will tell you that the brain is the organ of the body in the head.It controls our body's functions,movements,emotions and thoughts.But a brain can mean so much more.

A brain can also simply be a smart person,If a person is called brainy,she is smart and intelligent.If a family has many children but one of them is super smart,you could say,“She's the brains in the family.”And if you are the brains behind something you.are responsible for developing or organizing something.For example,Bill Gates is the brains behind Microsoft Brain trust is a group of experts who give advice.Word experts say the phrase“brain trust”became popular when Franklin D.Roosevelt first ran for president in 1932,Several professors gave him advice on social and political issues facing the U.S.

These professors were called his“brain trust.”

These ways we use the word“brain”all make sense.But other ways we use the word are not so easy to understand.For example,to understand the next brain expression,you first need to know the word“drain”.As a verb to drain means to,remove something by letting it flow away.So a brain drain may sound like a disease where the brain flows out the ears.But,brain drain is when a country's most educated people leave their countries to live in another.The brains are,sort of,draining out of the country.

However,if people are responsible for a great idea,you could say they brainstormed it.Here,brainstorm is not an act of weather.It is a process of thinking creatively about a complex topic.For example,business leaders may use brainstorming to create new products,and government leaders may brainstorm to solve problems.

If people are brainwashed,it does not mean their brains are nice and clean.To brainwash means to make someone accept new beliefs by using repeated pressure in a forceful or tricky way.Keep in mind that brainwash is never used in a positive way.

1.According to the text,if you're the CEO of Bai Du you can be called

A.the brains behind Bai Du

B.Bai Du's brain trust

C.the brain drain of Bai Du

D.the organ of Bai Du

2.Why did Roosevelt successfully win the election?

A.Because he was smart at giving advice.

B.Because word experts were popular.

C.Because he got his brain trust.

D.Because he was the brains behind America.

3.Which of the following expression is always used in a negative way?

A.Brain trust

B.Brain drain

C.Brainstorm

D.Brainwash

完形填空(共1小题)

When I stopped by to get a newspaper,a tall,sincere man came over to me asking for help with directions.With a printout of Google maps,he was looking for a ________ on the main street,but just couldn’t find it.After checking out his written directions,I mapped it ________ my phone and showed him ________ where he needed to go.

He,in ________ , mentioned that he had tried going there, but there was no such street number and he just couldn't locate his hotel.I ________ it again for him.He thanked me with a big smile, shook my hand,and ________ .I got into my car and he got into his, and we ________ ways.As I drove to the next grocery store and went in, I sensed ________ wrong about the directions-so I Googled the address again and ________ that he was looking for the right address but in a city half an hour away!

________ it had been several minutes, the chances of finding him miles away-where he was surely still looking around-were ________ .But I thought I'd give it a(an)________ and set off in that direction.I'd ________ noticed what his car looked like, and was just about to give up.I parked my car as I considered what else I could do-________ , like magic, he drove right by and pulled over into a nearby parking spot, still ________ about where the hotel was.

When I ________ next to him, he couldn't believe it: " ________ did you find me?!" he asked."I'm not sure, but I ________ that you are in the wrong city!" I showed him the right directions, and after more ________and a handshake, we ________.Likely that we'll never meet again, and that makes it much more sweet.

1.A.museumB.parkingspotC.hotelD.grocerystore

2.A.onB.inC.atD.with

3.A.constantlyB.exactlyC.absolutelyD.completely

4.A.reliefB.panicC.delightD.puzzlement

5.A.confirmedB.evaluatedC.analyzedD.adjusted

6.A.tookoffB.tookupC.tookdownD.tookover

7.A.lostB.partedC.foughtD.pushed

8.A.nothingB.anythingC.somethingD.everything

9.A.realizedB.consideredC.determinedD.stated

10.A.HopefullyB.UnbelievablyC.ConsequentlyD.Unfortunately

11.A.bigB.vitalC.slimD.obvious

12.A.beginningB.endC.changeD.try

13.A.hardlyB.merelyC.regularlyD.occasionally

14.A.whileB.beforeC.whenD.since

15.A.atalossB.atariskC.ateaseD.atpeace

16.A.putoutB.putupC.pulleddownD.pulledin

17.A.WhereB.WhyC.WhenD.How

18.A.triedoutB.figuredoutC.burstoutD.carriedout

19.A.luckB.smilesC.greetingsD.praise

20.A.lefttogetherB.returnedhomeC.wavedgoodbyeD.rushedaway

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Snow is a subject of great interest to weather experts . 1. . One reason is that heavy amounts of snow fall in surprisingly small areas . Another reason is that a small change in temperature can mean the difference between snow and rain .

Just what is snow , anyway ? Snow is a form of frozen water . 2. . These crystals grow from water droplets in cold clouds . They usually grow around dust particles(颗粒). All snow crystals have six sides , but they grow in different shapes . The shape depends mainly on the temperature and water levels in the air .

3. . About two and one-half centimeters of rain has as much water as 15 centimeters of wet snow . About 76 centimeters of dry snow equals the water in two and one-half centimeters of rain .

Snowfall helps to protect plants and some wild animals from winter weather . Fresh snow is made largely of air trapped among the snow crystals . 4. .

Snow can also influence the movement of sound waves . When there is fresh , soft snow on the ground , the surface of the snow absorbs , or takes in , sound waves . 5. . Then , the snow’s surface will help to send back sound waves . Under these conditions , sounds may seem clearer and may travel farther .

A. Much of the water the world uses comes from snow .

B. It contains groups of ice particles called snow crystals .

C. It is difficult to predict where , when or how much snow will fall .

D. Under some conditions , these particles may grow larger and form solid pieces of ice .

E. Snow contains much less water than rain .

F. However , snow can become hard and flat as it grows older or if there have been strong winds .

G. Because the air has trouble moving , the movement of heat is limited .

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