2.B　这里的短语意思各不相同，drop out 退学,drop in /drop by　顺便拜访 ，drop off 下降，减少。

1.C　charge 在这里表示“收费”； I want get my mobile phone charged.charge则表示“充电” 。

1.get;charged　2.effect on;is very likely;effect on　3.think of　4.get;skilled　5.my opinion;much too

1.unnecessary　2.disadvantages　3.economy　4.discoveries　5.electricity　6.charged　ducts　8.tears　9.cruel　10.doubt

2003年10月15日，神舟五号载人飞船发射升空，伴随着这一时刻的来临，所有的中国人都记住了一个名字，杨利伟，作为中国首位叩访太空的航天员，在太空中围绕地球飞行14圈后，杨利伟安全返回。我国首次载人航天飞行的成功，标志着中国人有能力攀登世界科技高峰，有能力把我们的国家建设得繁荣昌盛。

Unit 16　Scientists at work

Mr.Smith was a biology professor,but he had 　　　　　　　　　　　　　　　　 1._________

a lot of animal bones that he was very proud.Then　　　　　　　　　　　　　　　　　 2._________

one year he managed to get a better job in others 　　　　　　　　　　　　　　　　　　　　 3._________

university.As he was busy at the work,his wife asked 　　　　　　　　　　　　　　 4._________

three men to remove all their things to the new house.　　　　　　　　　　　　　　 5._________

One of them was just about throw a large box into the 　　　　　　　　　　　　　 6._________

truck with all the other things,then Mrs.Smith ran 　　　　　　　　　　　　　　　　 7._________

out and said,“Please treat the box gentle! It has 　　　　　　　　　　　　　　　　　　　　　 8._________

all of my husband's bones in it.” Heard this,the 　　　　　　　　　　　　　　　　　 9._________

man was so surprising that he nearly dropped it on his feet.　　　　　　　　　　　　　　 10._________

C

Flags have existed for over 3000 years.The earliest flags were wooden or metal poles topped with a carving.About 2000 years ago pies of fabric were added to some poles for decoration.Over the next 500 years the free-flying part of the flag became more important.

Every country today has its own flag.Many groups and organizations also have a flag which stands for,or symbolizes,the aims of the group.

The flag depicts (描绘)a world map,centered on the north pole.The map is surrounded by an olive(橄榄)wreath(花环)symbolizing peace and co-operation.The flag is blue and white.

8.Flags have been in existence for _________.

A.500 years

B.over 3000 years

C.about 2000 years

D.between 500 and 2000 years

9.A very old flag is likely to _________.

A.be made of fabric

B.have a map on it

C.have white shapes on it

D.be made of carved wood

10.An olive wreath is used to represent _________.

A.peace　　　　　　　　　　　　　　　　　　　　　　 B.purity

C.justice　　　　　　　　　　　　　　　　　　　　　　 D.equality

B

Below is a table which shows the melting(液化)and boiling points of common substances.Study the table.Then do Numbers 4-7.

4.The underlined word‘substances'means‘a type of'_________.

A.matter　　　　　　　　　　　　　　　　　　　　　　 B.liquid

C.solid　　　　　　　　　　　　　　　　　　　　　　　 D.gas

5.Which of the four should be a liquid at-90 degrees?

A.water　　　　　　　　　　　　　　　　　　　　　　 B.alcohol

C.nitrogen　　　　　　　　　　　　　　　　　　　　 D.oxygen

6.Mixing alcohol and water is often used to wash windscreens of cars during the wintertime because _________.

A.it is easier for alcohol to change into gas

B.alcohol is not easily separated from water

C.alcohol freezes at lower temperature than water

D.the mixture is not expensive

7.In order to change water from a solid to a liquid energy must be _________.

A.removed　　　　　　　　　　　　　　　　　　　　 B.added

C.created　　　　　　　　　　　　　　　　　　　　　 D.destroyed

A

Air is an odorless(that cannot be smelled;smelless),invisible(that cannot be seen)gas that surrounds the planet earth.It is everywhere on the planet.An “empty” drinking glass and an “empty” room,to give two examples,are not really empty.Each is filled with air.When the glass is filled with water,the water pushes the air out of the glass.

Air,as a gas,has no definite(fixed,particular)shape,but,because it is matter,it takes up space.It is easy to prove that air is something that takes up space.Stuff a dry handkerchief into the bottom of a glass so that it will not fall out when the glass is turned upside-down.Push the upside-down glass,hold it straight into a jar of water till the glass is completely covered.When the glass is taken out of water,the handkerchief will be dry.The air inside the glass took up space and kept the water from coming in.

1.“Stuff a dry handkerchief into…”.The underlined word means.

A.Press tightly　　　　　　　　　　　　　　　　　　　　　 B.Take out

C.Put down　　　　　　　　　　　　　　　　　　　 D.Turn fully

2.The writer tells us that _________.

A.the experiment was done in the laboratory

B.the experiment was done outside the room

C.the experiment is easily done

D.the experiment is carried out indoors

3.Which of the following pictures gives us the correct result?

(W-water;A-air;H-handkerchief)

In the last century there were not 　1　 big towns in the U.S.　2　 there are today.Most towns in the country were small.And in these small towns,the general store was 　3　 people 　4　 　the things they couldn't made or grow at home.

　 5　 　the store sold 　6　 　a good deal about life in the United States at that time.People bought tools that they needed on their farms.They bought salt,sugar,coffee and 　7　 　that their farms didn't produce.They bought articles of 　8　 　that they could not make themselves,and cloth or other materials that the　 9　 　would make into dresses for themselves,shirts for the men and clothes for their children.

Life in the 　10　 　century America was 　11　 .One proves that most people were satisfied with what they had 　12　 　still they looked forward 　13　 　courage to whatever the future would 　14　 　them.It would be interesting to know 　15　 　they would feel about life in the world today.　 16　 　to them that life is too complex,or would they be glad to see that life is 　17　 　in the past?

Nobody will 　18　 　know the 　19　 　people at that time would enjoy life today or not.Perhaps man is always the same of his kind.They did take things for granted,and also they did try to make life more comfortable.We have to admit that it is the same 　20　 　people at present.

1.A.many　　　　　　　　　　　　　　 B.so many　　　　　　　　　　 C.so much　　　　　　　　　　 D.a lot of

2.A.where　　　　　　　　　　 B.like　　　　　　　　　　　　　 C.what　　　　　　　　　　　　 D.as

3.A.where　　　　　　　　　　 B.for　　　　　　　　　　　　　　 C.in which　　　　　　　　　　 D.that

4.A.made　　　　　　　　　　　　　　 B.bought　　　　　　　　　　　 C.sold　　　　　　　　　　　　　 D.paid for

5.A.That　　　　　　　　　　　 B.No matter　　　　　　　　　 C.Which　　　　　　　　　　　 D.What

6.A.says　　　　　　　　　　　 B.talks　　　　　　　　　　　　 C.refers　　　　　　　　　　　　 D.tells

7.A.other things　　　　　　　　　　　　　　　　　　　　　　　 B.another food

C.other foods　　　　　　　　　　　　　　　　　　　　　　　　　 D.foods and drinks

8.A.clothes　　　　　　　　　 B.clothing　　　　　　　　　　 C.dresses　　　　　　　　　　　 D.suits

9.A.farmers　　　　　　　　　 B.men　　　　　　　　　　　　　 C.women　　　　　　　　　　　 D.children

10.A.eighteenth　　　　　　eenth　　　　　　　　 C.twentieth　　　　　　　　　

11.A.easy　　　　　　　　　　　　　　 B.simple　　　　　　　　　　　 C.interesting　　　　　　　　 D.tiresome

12.A.and which　　　　　　 B.and yet　　　　　　　　　　　 C.and that　　　　　　　　　　 D.but what

13.A.in　　　　　　　　　　　　 B.to　　　　　　　　　　　　　　 C.of　　　　　　　　　　　　　　 D.with

14.A.bring　　　　　　　　　　 B.take　　　　　　　　　　　　　 C.happen to　　　　　　　　　 D.serve

15.A.what　　　　　　　　　　 B.whether　　　　　　　　　　 C.that　　　　　　　　　　　　　 D.how

16.A.Did it appear　　　　　　　　　　　　　　　 　　　　　　　 B.Would it seem

C.What did it seem　　　　　　　　　　　　　　　　　　　　　 D.What appeared

17.A.still what it used to be

B.better than what it was

C.much more easier than

D.no more than it was

18.A.never　　　　　　　　　　　　　 B.always　　　　　　　　　　　 C.once　　　　　　　　　　　　　　　　 D.ever

19.A.truth that　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 B.fact whether

C.idea how　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D.information of

20.A.as　　　　　　　　　　　　　　　 B.for　　　　　　　　　　　　　　 C.with　　　　　　　　　　　　　　　　 D.like