Four of them are in the workshop.----- What about others? B级 综合单句改错 查看更多

 

题目列表(包括答案和解析)

Directions:Read the following three passages.Each passage is followed by several questions or unfinished statements.For each of them there are four choices marked A, B, C and D.Choose the one that fits best according to the information given in the passage.

  A rccent study of anclent and modern clcphants has come up with the uncxpeclcd conclusion that the african elcphant is dividcd into two disinct(不同的)species

  The discovery was made by researchers at yod and haycard yniwersities when they were examining the genetid relinship between the ancient woolly manmmth and mastodon to modern ckephants ins asoan alepnant a feoan forest elephant and afcican sannna clephant

  Once they obfantcd DNA sequences{序列}from two fossils{化石},mammothd and mastodons the team comparcd them with dna form ,modcrn eleohants they found to their amazement that modern forest and sabanna elephants are as distinct from cach other as asian elephants and manmoths he scientists used detailed genetic anatysis to proce that the african savanna clelhants hace been distinct species for several million years the divcrgonce of the ttwo species took place around the time of the of the dicergcncc of asian clephants and woolly mammoths this result amazed all the scienitsts

  There has long been debate in the scientific community that the two might be separespecies but this is the most convincing scientinfic evidence so far that they are anded difforent species

  Preci many naluralists believed that afrjcan savanna elephants and airican forest were two plpulations of the same apecies despite the clcphants signigice\ant sizw differences the sac\vanna elelphant has an average shouldcr height of 3.5metres while the forest slsphant has an average shouldcr height of 2.5metres the sacanna laphant welghs belween six anp secedn tons roughly double the weight of the forest elephant but the fact that they look so different does not neccssarily mean they are different species howecer the prooflay in the analysis of th DNA

  Alfred roca allisant professor in the dcoamment of animal scienccs at the unicerstiu of said “wu now nave to reat the forest and savanna elephants at two diffcrcnt units for consrrbation pucpooses since 1950 all african ele[hants are two cery distinctice animals the forest ele[hant shoule become a bigger prioity(优先)for conscrvation puruose”

(1)

one of the fossols studied by the reaearchers if that of ________

[  ]

A.

the asian elephant

B.

the forest elephant

C.

the savnna clcphant

D.

the maslodon elephant

(2)

the underlined word “divergence” in p[aragraph 4means “________”

[  ]

A.

evolution

B.

e\cxhibition

C.

separation

D.

cxamination

(3)

68.the resarchcrs conclusion was based on a study of the a frican elephant's ________

[  ]

A.

DNA

B.

height

C.

weight

D.

populalion

(4)

What are Alfred Roca's words mainly about?

[  ]

A.

The conservation of African elephants.

B.

The urose of studing African elephants.

C.

The way to divide African elephants into two units

D.

The reason for the distinction of African elephants.

(5)

Which of the following can be the best title for the passage?

[  ]

A.

Naturalists' Beliefs about Elephants

B.

Amazing Experiments baout Elephants

C.

An Unexpected Finding about Elephants

D.

A Long Scientific Debate baout Elephants

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While I was in 9 th grade, I built a circuit (电路装置) for the traffic system of our city. After getting the first prize. I got this valuable advice from my father; “Do whatever interests you, and don’t let the work challenge you, make sure you are challenging that work.”
I have always preferred the projects which are challenging and related to real life problems. I clearly remember building a shipping program several years ago. I divided the whole project into several small sections. When I understood it clearly, used my brainstorming skill on it, and gave some basic ideas. Then I asked my professor for help before jumping into coding (编码). At first, I did not know how to ask questions correctly and always asked the question “How do I do it?” As I  kept working and discussed with my professor, I became more comfortable and those “how ”questions soon turned into “what if I do this and that” types of questions.
It took me four days to write the code. The desire to solve the problem kept me sleepless all nights brainstorming in even greater details. Every time I saw my program running smoothly, I exploded with joy. I still remember the last day of my work. I was getting some problem and didn’t know what to do. At that moment, a man came in to clean. He has headphones, and he was dancing while cleaning the room. Seeing this, I burst out laughing. That moment calmed me. I regained energy and interest and started to work again, and soon I fixed the problem.
My success in the project proved that breaking up a large problem into small parts could help find a possible solution. Discussing the problem with others was also very beneficial. Now I have gained the confidence to attempt any kind of project.
59.According to the passage, the writer was interested in          .
A.developing traffic systems
B.doing challenging projects
C.winning great prizes
D.writing different codes
60.The writer asked the question “how do I do it” at first because         .
A.he had no clear idea about his program
B.he was too shy to express himself
C.he wanted to he understood easily
D.he preferred this kind of question
61.We learn from the passage that the writer’s shipping program         .
A.would benefit people a lot
B.was done together with others
C.was difficult and needed patience
D.cost much money and energy
62.What would be the best title of the passage?
A.Do It Yourself
B.No Pains, No Gains
C.Learning with interest
D.Practice Makes Perfect

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Christmas bird – watching is popular in the U.S.A. When the holiday season comes, some Americans are likely to watch and count birds in the sky with great interest every day. This activity began in the early part of the last century. It has a one-hundred-year history. At that time, there was a so-called “holiday hunting” custom. In order to celebrate the holiday, the hunters went out to kill birds and beasts. By 1900, there were 27 bird lovers who decided to count birds instead of killing birds. Since then, Christmas bird-watching was held every year. It has been continued to the present.

There were 42000 people who took part in the bird-watching last Christmas, from December 16 the year before to January 3 next year. They were in the United States and Canada, central America, south America and the Caribbean, watching and counting birds in the sky. The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was required to write down the types and quantities of birds within 24 hours.

A birdwatcher described what he had watched vividly in his diary—“ When I looked up, I saw a beautiful ‘landscape’ in the sky: Red-crowned cranes(丹顶鹤) were driving up in cunning wedges that split the air. They were so neatly arranged, coordinating their movements. I was excited and breathtaking. Interestingly, the “human” shape(人字行) always maintains 110° ” .

“Why do red-crowned cranes choose to use ‘human’ shape when flying in formation?” He continued, “In my opinion, there are four reasons: first, the ‘human’ shape can make red-crowned cranes use increasing air which is produced by each other’s wings when they are swinging in the sky. It can increase the glide time and save physical ability. Second, the ‘human’ shape will enhance communication among the birds. The orders and the relevant information issued by the lead bird can be conveyed to each member in this migratory group unimpeded, accurately, rapidly and conveniently. Third, such a formation will help to find the birds left behind because of feeling run down as fast as possible, so that the young, the weak, the sick birds can get everyone’s help and encouragement. Finally, the ‘human’ shape shows not only beauty but also unity. It can give enemies a deterrent.They will be terrified and did not dare to attack the birds.The migration security of the birds will be ensured.”  

Environmental experts admired and evaluated Christmas bird-watching highly. They pointed out that it made perfect sense. On the one hand it could enhance the human awareness of environmental protection. On the other hand it could provide first-hand information on birds.

49.When did Christmas bird – watching begin?

         A.Sometime during Christmas holiday.         B.At the beginning of 20th century.

         C.In the early 19 th century.          D.Since there was Christmas Day

50.What do bird – watchers do when they are bird – watching?

         A.They kill birds and beasts.          B.They watch birds and beasts.

         C.They watch and count birds.     D.They look at the sky and write diaries.

51.The following are all reasons for red – crowned cranes flying in “human” shape except      .

         A.they can help each other and ensure their safety

         B.they can communicate with each other in order to reduce tiredness.

         C.they can make use of the air produced by each other’s wings.

         D.they can look stronger in case they come across enemies

52.This passage consists of five paragraphs. Please arrange the five main ideas of the paragraphs in order of their appearance in the passage.

    a. How the bird – watchers divided their watching task and what was done.

         b. How Christmas bird – watching came into being.

         c. Christmas bird – watching is of great importance environmentally and scientifically.

         d. A Christmas bird – watcher watched and was amazed by red – crowned cranes.

         e. Red – crowned cranes fly in “human” formation for quite good reasons.

         A.a – b – c – d – e         B.b – c – e – d – a         C.b- a – d – e – c D.b – d – e – a – c

 

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Talking on a mobile phone is expensive, so a lot of people send text messages. Text messages are much cheaper than talking on a mobile phone, and you can make it cheaper by making the words shorter. You can do this by taking out “unimportant” letters in the words and using numbers instead of words (2 =" to," 3 =" free," 4 =" for," 8 =" ate," so h8 =" hate," etc.). You can also keep away from using punctuation (标点). Here is an example: Do U wnt 2 g 2 th cnma tnite (Do you want to go to the cinema tonight?)

What do you think these text messages mean?

Whr hv U bn? Iv bn wtng hrs fr a cll.

Im hm nw, why nt gv me a cll.

I gt a txt mssge frm my frnd. Shes hvng a prty on Strdy.

Mobile phone users have developed a group of symbols (符号) to show how they feel. They are called emoticons, and there are some examples below. To read an emoticon, you have to look at it sideways. For example, if you say something in a text message that is a joke, you can follow it with a smiling face. Like this: Why didt u call me? I’m so sad.   (

Here are some others. Can you think of text messages where you could use them?

) laughing     ( sad    < really sad

Ⅴ shouting    |·| asleep   :0 shocked

8·| surprised    \·o bored

1.Why are text messages popular?

A.Because they are expensive.

B.Because they are cheap.

C.Because they are hard to write.

D.Because they are not important.

2.The first paragraph tells us that we can make the text messages shorter in             ways.

A.one

B.two

C.three

D.four

3. What does this text message “Do U wnt 2 cm?” mean? It means “                   ?”.

A.Do you want to come

B.Do you wear two caps

C.Do you want two cakes

D.Do you go home early

4.Why do people use emoticons?

A.Because they can show how users feel.

B.Because the symbols are beautiful.

C.Because text messages are short.

D.Because the users can’t make the words shorter.

 

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Talking on a mobile phone is expensive, so a lot of people send text messages. Text messages are much cheaper than talking on a mobile phone, and you can make it cheaper by making the words shorter. You can do this by taking out “unimportant” letters in the words and using numbers instead of words (2 =" to," 3 =" free," 4 =" for," 8 =" ate," so h8 =" hate," etc.). You can also keep away from using punctuation (标点).       Here is an example: Do U wnt 2 g 2 th cnma tnite (Do you want to go to the cinema tonight?)

What do you think these text messages mean?

Whr hv U bn? Iv bn wtng hrs fr a cll.

Im hm nw, why nt gv me a cll.

I gt a txt mssge frm my frnd. Shes hvng a prty on Strdy.

Mobile phone users have developed a group of symbols (符号) to show how they feel. They are called emoticons, and there are some examples below. To read an emoticon, you have to look at it sideways. For example, if you say something in a text message that is a joke, you can follow it with a smiling face.

1.Why are text messages popular?

A.Because they are expensive.

B.Because they are cheap.

C.Because they are hard to write.

D.Because they are not important.

2.The first paragraph tells us that we can make the text messages shorter in             ways.

A.one

B.two

C.three

D.four

3.What does this text message “Do U wnt 2 cm?” mean? It means “                   ?”.

A.Do you want to come

B.Do you wear two caps

C.Do you want two cakes

D.Do you go home early

4.Why do people use emoticons?

A.Because they can show how users feel.

B.Because the symbols are beautiful.

C.Because text messages are short.

D.Because the users can’t make the words shorter.

 

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