A．Unless B．Since C．If D．Though

31．－I'll call on you at 10：00 tomorrow morning. －Sorry，I________ the flight to Shanghai then.

A．have enjoyed B．will be enjoying C．am enjoying D．am to enjoy 32．Please do me a favor—________Mr.Smith of the date and place of our English speech contest.

A．to inform B．informing C．inform D．informed

33．After five hours' drive，they reached________they thought was the place they had been dreaming of.

A．that B．what C．which D．where

34．In the dark forests________，some of which are large enough to hold several small towns.

A．are lying many lakes B．do many lakes lie C．many lakes lie D．lie many lakes

35．Why do we have to________ Susan's selfish behavior? We have to teach her to care for others.

A．put up with B．get away with C．come up with D．get on with 第二节 完形填空(共20小题；每小题1分，满分20分)

阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。

I wanted to be just like those big kids I saw wearing their medals and carrying their ribbons (绶带)．So I __36__the cross-country team at my school. However，I was very slow in the team.In races，I would finish almost__37__.I'd always have to__38__in the longer races.The__39__races and at least 100 people competing in it made me really __40__.Every time I stopped,10 people would__41__me.But I still couldn't push myself to keep going，even though I__42__watching them go by me.After every race，I'd go home and burst into tears.

Then one of my friends joined the cross-country team，too.She never got tired and didn't get cramp (抽筋 )in her legs.I just didn't understand how that was__43__！I'd been running much longer than she had，but she could run__44__while I had to suffer.She even came 8th in a big race with over 200 people in it！My__45__was lower than ever and I wanted to quit badly. I didn't，__46__.Even a whole month before a race，I'd get so nervous that I felt like I might give up.Still，I__47__to quit.I still had that__48__appearing in my mind and I hung on to it.

Finally，I realized the reason why the bigger races made me so nervous was that I was always worried that I wasn't__49__for them.I started to practice at home almost every day.I __50__a plan that had me running almost three kilometers every day，which helped me build up a steady__51__.

When the time came for the big race，all the practice really__52__.I stopped only once and my pace was much better.

I was__53__of myself for sticking with it even though it was really hard and I'd even wanted to quit.I showed myself that I was__54__enough to keep going.That was what made me feel good about myself and gave me confidence. The next time I'm faced with a tough __55__，I will know that I can take it up.None of this would ever have happened if I had quitted ! 36．A.liked B．admired C．supported D．joined 37．A.best B．first C．last D．least 38．A.stop B．rest C．breathe D．suffer

39．A.exciting B．tiring C．interesting D．disturbing 40．A.nervous B．frightened C．sad D．angry 41．A.help B．encourage C．leave D．pass 42．A.missed B．hated C．avoided D．escaped 43．A.equal B．reasonable C．fair D．tolerable 44．A.quickly B．easily C．happily D．hopefully

45．A.strength B．demand C．goal D．confidence 46．A.yet B．either C．though D．still 47．A.refused B．decided C．failed D．wanted 48．A.lesson B．faith C．future D．picture 49．A.suitable B．active C．ready D．well

50．A.took out B．mapped out C．figured out D．let out 51．A.pace B．race C．will D．level

52．A.set off B．paid off C．got off D．took off 53．A.sure B．aware C．proud D．afraid 54．A.strong B．patient C．steady D．devoted 55．A.job B．sport C．competition D．challenge 第三部分 阅读理解(共20小题，每小题2分，满分40分)

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。 A

A camera，a glove，a hand tool，even a toothbrush...they are all up there，above the clouds，going around and around the Earth.There are also thousands of pieces of metal and plastic.Some of them are only about the size of a fingernail.Many are much larger.Scientists consider all these objects to be space_junk，and they are a problem.

Since people first launched rockets into space in the 1950s，we have been leaving behind all sorts of things.Much of the space junk is made up of little pieces of things that were once bigger objects，until they struck each other and broke apart.Sometimes larger pieces survive the extreme heat through the

atmosphere and hit the ground or the ocean at great speeds.

But space junk falling on housetops is not the biggest worry.Scientists are concerned about the Kessler syndrome.It is named after the American scientist who first thought of the idea in 1978.Imagine what happens when an empty rocket strikes another while orbiting the Earth.Two big things become many smaller things.They then hit other things.The pieces get smaller and smaller until they form a cloud of junk that blocks the path of future space vehicles. Marco Castronuovo，an Italian Space Agency researcher，suggested launching a satellite into space that would get very close to some of the larger pieces of space junk.The satellite would connect a small rocket to the useless object.When the rocket explodes，it pushes the junk into a lower and slower orbit，nearer the Earth.After a time，the junk burns up in the atmosphere. Scientists have been concerned about space junk for many years.Right now，the costs of the clean-up have been too great.Mr.Castronuovo says his system could be put in place for a much more reasonable amount of money. 56．What does the underlined part“space junk” in Paragraph 1 refer to? A．It refers to small pieces of things that were once bigger objects. B．It refers to objects that survived the extreme heat through the atmosphere. C．It refers to clouds that are made up of small objects in space. D．It refers to all kinds of objects that have been left behind in space. 57．Why do scientists consider the Kessler syndrome a big problem ? A．Space junk clouds are likely to block the path of spacecraft. B．An empty rocket might strike a spacecraft orbiting the Earth. C．Space junk might fall onto the Earth，causing damage.

D．Space junk becomes bigger and bigger until hard to get rid of. 58．What is mainly talked about in the passage?

A．Smaller objects come together to form clouds of space junk. B．Human beings are responsible for space junk.