题目列表(包括答案和解析)
The secret of carrier pigeons' unbelievable ability to find their way home has been discovered by scientists: the feathered navigators follow the roads just like we do.
Scientists now believe the phrase "as the crow (乌鸦) flies" no longer means the shortest most direct route between two points. They say it is likely that crows and other day birds also choose AA-suggested routes, even though it makes their journeys longer.
Scientists at Oxford University spent 10 years studying homing pigeons using global positioning satellite (GPS) and got a surprising result. The birds often don't use the sun to decide their directions.
Instead they fly along motorways, turn at crossing and even go around roundabouts (绕道) , adding miles to their journeys.
"It really has knocked our research team sideways to find that after a decade-long international study, pigeons appear to ignore their inbuilt directional instincts (本能) and follow the road system," said Prof Tim Guilford, reader in animal behavior at Oxford University's Department of Zoology.
Guilford said pigeons use their own navigational system (导航系统) when doing long distance trips or when a bird does a journey for the first time.
"But once homing pigeons have flown a journey more than once, they can fly home on a habitual route, much as we do when we are driving or walking home from work," said Guilford.
"In short, it looks like it is mentally easier for a bird to fly down a road. They are just making their journey as simple as possible."
1.What would be the best title of the passage?
A. How Pigeons Find Their Ways Home? B. Why Pigeons Can Fly long Distance?
C. Birds Follow Roads as We Do. D. Why Crows Fly the Shortest D stance?
2.What does the words "the feathered navigators" refer to?
A. The crows. B. The pigeons. C. Day birds. D. Animals that can fly.
3.Scientists used to think that homing pigeons often find their directions ____.
A. by global positioning satellite B. by the sun
C. by the road system D. by following other birds
4.Why do homing pigeons tend to follow the road system daring the r journey?
A. Because they don't have their inbuilt directional instincts now.
B. Because their own navigational system doesn't work.
C. Because it is too hard to use their own navigational system.
D. Because it is easier to make journey simple by following road system.
完形填空(共20小题;每小题1.5分,满分30分)
阅读下面短文,掌握其大意,然后从21~40各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题纸上将该选项标号涂黑。
The books in David’s schoolbag felt like bricks as he ran down the street.What he wanted to do was to play basketball with Eric. 21 his mother told him he would have to return his sister’s books to the library first.
He had 22 set foot in a library and he wasn’t about to do so today.He would just 23
the books in the outside return box.But there was a 24 ;it was locked.
He went into the building,only a few minutes 25 closing time.He put the books into the return box.And after a brief 26 in the toilet,he would be on his way to the playground to 27 Eric.
David stepped out of the toilet and stopped in 28 —the library lights were off.The place was 29 .The doors had been shut.They 30 be opened from the inside.He was trapped(被困)—in a library!
He tried to 31 a telephone call,but was unable to 32 .What’s worse,the pay phones were on the outside of the building. 33 the sun began to set,he searched for a light and found it.
34 he could see.David wrote on a piece of paper:“ 35 !I’m TRAPPED inside!”and stuck it to the glass door. 36 ,someone passing by would see it.
He was surprised to discover that this place was not so unpleasant, 37 .Rows and rows of shelves held books,videos and music.He saw a book about Michael Jordan and took it off the shelf.He settled into a chair and started to 38 .
He knew he had to 39 ,but now,that didn’t seem to be such a 40 thing.
21.A.but B.because C.or D.since
22.A.ever B.nearly C.never D.often
23.A.pass B.drop C.carry D.take
24.A.problem B.mistake C.case D.question
25.A.during B.after C.over D.before
26.A.rest B.break C.walk D.stop
27.A.visit B.meet C.catch D.greet
28.A.delight B.anger C.surprise D.eagerness
29.A.lonely B.empty C.noisy D.crowded
30.A.wouldn’t B.shouldn’t C.couldn’t D.needn’t
31.A.make B.fix C.use D.pick
32.A.get on B.get up C.get through D.get in
33.A.If B.As C.Though D.Until
34.A.On time B.Now and then
C.By the way D.At last
35.A.Come B.Help C.Hello D.Sorry
36.A.Surely B.Thankfully C.Truly D.Gradually
37.A.at most B.after all C.in short D.as usual
38.A.watch B.play C.read D.write
39.A.wait B.stand C.sleep D.work
40.A.bad B.cool C.strange D.nice
We are making progress every day in computer science and some of the techniques are ______ very soon.
A. on the way out B. in the way out C. by the way to D. on the way towards
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,并在答题卡上将该选项涂黑。
From the time each of my children started school, I packed their lunches. And in each lunch, I 21 a note. Often written on a napkin (餐巾), it might be a thank-you for a 22 moment, a reminder of something we were happily expecting, or a bit of _23 for the coming test or sporting event.
In early grade school they_ 24 their notes. But as children grow older they becomes self-conscious(有自我意识的), and _25 he reached high school, my older son, Marc, informed me he no longer 26 my daily notes. Telling him that he no longer needed to 27 them but I still needed to write them, I 28 until the day he graduated.
Six years after high school graduation, Marc called and asked if he could move 29 for a couple of months. He had spent those years well, graduating from college, 30 two internship (实习) in Washington, D.C., and 31 , becoming a technical assistant in Sacramento. 32 short vacation visits, however, he had lived away from home. With his younger sister leaving for college, I was 33 happy to have Marc back. Since I was 34 making lunch for his younger brother, I 35 one for Marc, too. Imagine my 36 when I got a call from my 24-year-old son, 37 his lunch.
“Did I do something 38 ? Don’t you love me 39 ,Mom?” were just a few of the questions he threw at me as I 40 asked him what was wrong.
“My note, Mom,” he answered. “Where’s my note?”
21. A. carried B. found C. included D. held
22. A. difficult B. special C. comfortable D. separate
23. A. congratulation B. improvement C. explanation D. encouragement
24. A. loved B. answered C. wrote D. examined
25. A. lately B. by the way C. by the time D. gradually
26. A. received B. understood C. enjoyed D. collected
27. A. copy B. read C. take D. send
28. A. held up B. gave up C. followed D. continued
29. A. out B. home C. to college D. to Sacramento
30. A. organizing B. planning C. comparing D. completing
31. A. hopefully B. finally C. particularly D. certainly
32. A. Because of B. Instead of C. Except for D. As for
33. A. especially B. immediately C. equally D. generally
34. A. once B. again C. still D. even
35. A. packed B. fetched C. bought D. filled
36. A. fear B. surprise C. anger D. disappointment
37. A. waiting for B. worrying about C. caring for D. asking about
38. A. wrong B. funny C. strange D. smart
39. A. any more B. enough C. once more D. better
40. A. interestingly B. bitterly C. politely D. laughingly
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com