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1、科普说明篇滚动组合训练（一）(时间：30分钟).完形填空。Trees in the Amazon rainforest(雨林)are showing scientists the past so the scientists can learn what will happen in the future.Have you 1 tree rings?Some trees create rings every year 2 they grow. These rings can be 3 in tree trunks(树干)when the trees are cut down. A trees
2、4 can tell us how old the tree is, but UK scientists have 5 a way of learning about the climate of the rainforest in the past from the tree rings.Growing in the Amazon rainforest, some trees only have short roots. It means that the trees depend on rainwater, 6 the water that is naturally deeper unde
3、rground. So the rings of the tree trunks help scientists understand the rainfall(降雨量), 7 the climate of the Amazon rainforest over the last 100 years. What scientists want to know, however,is how the rainforest will be 8 by the worlds rising temperatures. Will it become wetter or drier? The Amazon r
4、ainforest is 9 the “lungs of the earth” for the trees there take in a lot of carbon dioxide(CO2)and produce oxygen every day. A warming world could have a very bad influence on the important forest. But 10 more information about the past, scientists hope to know what one of the most important rainfo
5、rests in he world will be like in the future.( )1.A.heard about B.paid forC.looked after D.agreed with( )2.A.since B.asC.although D.after( )3.A.heard B.drawnC.produced D.seen( )4.A.rings B.leavesC.fruits D.roots( )5.A.changed B.forgottenC.discovered D.imagined( )6.A.rather than B.as forC.because of
6、D.thanks to( )7.A.yet B.everC.even D.still( )8.A.destroyed B.rememberedC.expected D.influenced( )9.A.bad for B .known asC.angry with D.different from( )10.A.except B.includingC.with D.like.阅读理解。ARadio,telephone and television are widely used in the world.When you switch on the radio,you can listen.B
7、ut when you use telephone,not only can you listen to others but also you can chat with them;however,you cannot see anything at all.Television is much better than both of them.People can watch TV and listen to it,but they cannot take part in what they see.Today,some people are using a new type of tel
8、ephone called vision phone.With it two people who are talking can see each other.Vision phones can be of great use when you have something to show the person whom you are calling.It may also have other uses in the future.Some day you may be able to call up a library and ask to read a book right over
9、 your vision phone.You may be able to do the shopping through it,too.Perhaps in the near future,vision phone will come into wide use in our everyday life.( )11.According to the passage, we can guess that the _ was invented last.A.radio B.televisionC.telephone D.vision phone( )12.Maybe the vision pho
10、ne can take the place of _ some day.A.the radio B.the telephoneC.the television D.all the above( )13.Through a vision phone we can _.A.take medicineB.order what we needC.travel around the worldD.try on clothes( )14.In the future,you can use a vision phone to _.A.read a book in the libraryB.ask a lib
11、rarian to read a book for youC.ask a librarian to bring you a bookD.ask a librarian to do some shopping for you( )15.Which of the following is not correct?A.Vision phone is more advanced than radio,telephone or television.B.People will use vision phone in the future more than now.C.Vision phone will
12、 be helpful in peoples daily life.D.It is impossible to do shopping through vision phone.BIn ancient Chinese stories,the moon is home to Change and her pet rabbit Yutu.Now,Change and Yutu are really there.On Dec.2,2013,the Change-3 lunar probe(月球探测器)took off.On Dec.14,2013,it landed successfully on
13、the moon.Several hours later,Yutu,Chinas first moon rover(月球车),“walked” out of the probe and onto the moon.Yutu is a big robot that weighs 140 kg.It is about 1.5 meters long and 1.1 meters tall.It has six wheels and travels at 200 meters per hour.There are cameras on both Yutu and Change-3.They can
14、take pictures of each other.Thats how Yutu got its first picture on the moon.Yutu and Change-3 will explore(探索）the moon.Yutu can walk around and work for three months.It can look for natural resources(资源）on the moon.Change-3 can work at the landing site for one year and it can watch the space from the moon.They both get energy from the sun.So they “get up” to work when the sun rises,and “go to sleep” at night.China is now the third country in the world to soft-land on the moon after the US and the former Soviet Union.Also,China is planning t
