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Passage TwoThe great advance in rocker theory 40 years ago shows that liquid-fuel rockets were far superior in every respect to the skyrocket with its weak solid fuel. However, during the decade, large solid-fuel rockets with solid fuels about as powerful as liquid fuels have made their appearance, and it is a favorite layman ’s question to 19 inquire which one is ―better‖. The question is meaningless. One might as well ask whether a gasoline or a diesel engine is ―better‖. It all depends on the purpose, a liquid-fuel rocket is complicated, but has the advantage that it can be controlled beautifully. The burning of the rocket engine can be stopped completely: it can be reignited when desired. In addition, the thrust can be made to vary by adjusting the speed of the fuel pumps. A solid-fuel rocket, on the other hand, is rather simple in construction, though hard to build when a really at very short notice. A liquid-fuel rocket has to be fueled first and cannot be held in readiness for very long after it has been fueled. (82)However, once a solid-fuel rocket has been ignited, it will keep burning. It cannot be stopped and reignited whenever desired and its thrust cannot be varied. Because a solid-fuel rocket can be kept ready for a long time,most military employ solid fuels, but manned space-flight needs the fine adjustments that can only be provided by liquid fuels. It may be added that a liquid-fuel rocket is an expensive device; a large solid-fuel rocket is, by comparison, cheap. But the solid fuel, pound per pound, costs about 10 times as much as the liquid fuel. So you have, on the one hand, an expensive rocket with a cheap fuel and on the other hand a comparatively cheap rocket with an expensive fuel.The most important consideration for manned space flight is that the rocket be_____.

2.Read it aloud___the class can hear you

3.Laura and Anthony Valois are a young New York couple who have been trying in vain to have their first child.Several years ago.Belinda Ramlrez read an Internet adoption listing and quickly contacted them from her home in Texas,telling them they could adopt her unborn baby. Excited, Laura and Anthony spent weeks communicating with Ramirez and got regular updates on her preg –nancy.Before long, Ramirez began to ask them for financial support. That took the Valoises by surprise.But were willing to do a lot to ensure a smooth birth. They sent more than $1,000 to Ramirez over several months.Laura and Anthony finally drove to Texas so they could be on hand for the birth. But once they arrived,Ramirez avoided their daily phone calls. After there weeks, the couple drove back to New York-empty-handed and emotionally crushed.They later learned Ramirez had been cheating about ten other people for such things as Wal-mart gift cards in ststes ranging from California to Ohio to Florida. From start to finish,it was a scam .In fact,Ramirez was never even pregnant. She was sentenced to 24 months in prison as she deserved.“When you find out you can’t have children, it’s just depressing.” Laura Valois told a Texas Tv station.“But when somebody intentionally does this to you,it’s 15 times worse.”What was depressing for the couple according to Laura?

4.About 79 million Americans have pre—diabetes(糖尿病前期).That means they have blood sugarthat's higher than normal but not hi 曲 enough to be diagnosed(诊断)with type 2 一 at least not yet.One lon9.term study reposed by the American Diabetes Association found that l l%of people withpre—diabetes develop the full—blown disease each year.Another study shows that pre—diabetes willprobably become type 2 in lo years or less. Yet，that process is not inevitable.Last year，scientists in Colorado found that people withpre—diabetes who lowered their blood sugar to normal levels--even briefly--were 56%less likely toreachtype 2 levels.Ⅱyou have pre—diabetes.here are four steps to help prevent or delay a diabetes diagnosis：Lose 7%of your body weight.That is about l5 pounds for the persons who weigh 200.Drop—ping that small percentage has been shown to lower the risk of developing type 2 by closet060%.Exercise 30 minutes five days a week.Whether you do the 30 minutes in one shot or in three10 一 minute sessions，the benefit is the same.Choose certain exercises，such as fast walkin9，playingtennis or lifting weights.Physical activity such as sweeping floors works，t00.Turn to your doctor.In some cases，pre—diabetes raises the risk of heart disease and stroke by50%.Your doctor may use some medicine to control your glucose(葡萄糖)levels and keep yourblood pressure in check.Know your numbers.To see if your pre-diabetes is improvin9 ， have your blood sugarcheckedregularly.A fasting blood sugar of l00 t0125 mr=/dl suggests pre—diabetes;126 m9/dl or above isdiabetes;and below l00 is normal.Other tests，including glucose tolerance and AIC，also are used tomonitor blood sugar.To prevent or delay a diabetes diagnosis，people with pre—diabetes should pay most atten。tion t0____________

5.Prizes can only be given to______ of allraces, countries and religions.应选( )

6.We’ll visit Europe next year _____we have enough money.（）

7.There are___months in a year.

8.Passage FiveMark Twain is one of America's much-beloved authors,creating imaginative and humorousclassics for children and adults alike,such as The Adventures of Tom Sawyer,The Prince and ThePauper,and Adventures of Huckleberry Finn.Twain passed away in 1910,leaving behind a treasure of great literature.But now,100 years after his death,he'll have a brand-new book on the shelves: a three-volume autobiography.Twain hasn't been keeping busy in his tomb:it was his wish that publishers wait until 100years after his death to publish his memoirs(自传),which he spent the last decade of his lifeworking on.The autobiography totals more than 5,000 pages,and likely won't be all sunshine and roses.Itseems that Twain harbored some bitterness against former girlfriends and ex-friends.He also writes negatively about politicians of his day,such as Teddy Roosevelt.It's likely that he requested such a long lead time for the memoirs because he didn't want to hurt the feelings of anyone mentioned in this work.Although small sections of the memoirs have been previously published,the autobiography hasnever been available in full,and should provide great insights into the man behind the classicbooks.The first volume of the set will be available in November,and the trilogy is being published by the University of California,Berkeley."There are so many biographies of Twain,and many of them have used bits and pieces of theautobiography,"editor Robert Hirst told The Independent.“But biographers pick and choose what bits to quote.By publishing Twain's book in full,we hope that people will be able to come to their own complete conclusions about what sort of a man he was.”54.What does the underlined word“trilogy”in Paragraph 4 mean?

9.Would you please pass me____?

10.In our view, the root __________ of the crime problem is poverty andunemployment.

11.Stokoe and his two deaf assistants, worked ____ this project during the summer and after school.填入____处的最佳答案是()。

12.Train companies in Tokyo are taking action to reduce the number of people jumping in front of trains．They are fitting blue lights on station platforms to try and create a more calming atmosphere．The East Japan Railway Company has invested almost $170,000 to install the lights in all of the 29 stations on the capital's busy Yamanote Line．There has been an alarming rise in the number of people committing suicide at train stations．A total of 68 people threw themselves under trains in the year up to March．This compares with 42 suicides in the same period a year earlier．In 2008, Japan had nearly 2,000 suicides by jumping in front of a train; around six percent of all suicides nationwide．Suicides have risen sharply in the past decade due to poor economic conditions. 　　No one knows if the blue lights will work．There is no evidence to show that blue light reduces suicidal feelings． Keihan Railway spokesman Osamu Okawa stated: "We thought we had to do something to save lives．We know there is no scientific proof that blue lights deter suicides, but if blue has a soothing effect on the mind, we want to try it to save lives." The Associated Press news agency reports on a Japanese therapist called Mizuki 　　　Takahashi．She explained her reasons why the blue lights might be a good idea: "We associate the color with the sky and the sea．It has a calming effect on agitated people, or people obsessed with one particular thing, which in this case is committing suicide," she said．Other companies are watching this experiment with interest.[单选题] A Japanese therapist explained that __．

13.They had to walk here,___they?

14.In the past 30 years China___great advances in the socialist revolution and socialist construction.

15.Directions:In each of the following groups of words, there are four underlined letters or ltter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet

16.

Who designed(设计）the first helicopter(直升飞机）？Who1oneof the most famous pictures in the world?Who knew more about the human body than most2 . There is an answer3all these questions-Leonardo de Vinci(达·芬奇）。

Leonardo may have been the greatest genius(天才）4have ever known.He livedin Italy around the year 500.but many of his inventions seem modern to us today.For example,one of his notebooks has drawings of a helicopter.Of course,he couldn't5helicopter with the things he had.But scientists say his idea would have worked.

But Leonardo6an inventor.He was one of the greatest artists of his day.By thetime he was twenty years old.he was called a master(大师）painter,and as he got olderhe became7more famous.Sometimes he drew a hand ten different ways8he wasready to paint.

Many of Leonardo's wonderful paintings are still with9today.You may know

one of his most famous works the10woman known as the Mona Lisa.

3.

17.Many governments are now taking _____to reduce smoking in public places.

18.选出下面读音不同的选项()。

19.After a number of disagreements with the committee, the chairman decided to ______.

20.56. Tom: Would you mind passing me the salt?Tony:__________.57. Amy: Do you think you could show me the way to the library?Ronald:__________.58. Peter: Did you miss the beginning of the concert yesterday?Andrew:__________.59. Simon: Could I see Dr. Brown, please?Gary:__________.60. John: I'd like to book five tickets, please, for the early morning flight to Paris on June lOth.Jane: Five tickets.__________.57 __________.