當(dāng)while, when, as引導(dǎo)時(shí)間狀語從句時(shí)的區(qū)別:①while引導(dǎo)的狀語從句中動(dòng)詞必須是持續(xù)性.謂語動(dòng)詞多為進(jìn)行時(shí).或狀態(tài)動(dòng)詞的一般時(shí).while 的這些用法可用when代替.等于 "at the time that", "during the time that".例如:Please keep quiet while others are studying,② when除可指一段時(shí)間外.還可用來指一點(diǎn)時(shí)間.等于 "at the time".也就是說when引出的時(shí)間狀語從句中的謂語動(dòng)詞可以是終止性的.也可以延續(xù)性的.因此主句和從句的謂語可以是一般時(shí).進(jìn)行時(shí).或完成時(shí).例如:When I went into the lab, the teacher was doing an experiment.He often makes mistakes when he is speaking English.③as常可與when.while通用.但強(qiáng)調(diào)"一邊.一邊".例如:As I was walking down the street, I noticed a police car in front of number 37. ④when引導(dǎo)的狀語從句中的主語與主句主語一致.主.謂是"主語+系動(dòng)詞"結(jié)構(gòu)時(shí).這時(shí)主語和系動(dòng)詞可以省略.例如:When young, he worked for a rich man./ She'll be here to give you help when necessary. ⑤when有時(shí)代替if.引導(dǎo)條件句.意為"如果"."假如".例如:I'll come when (if) I'm free. 查看更多

 

題目列表(包括答案和解析)

You have waited 45 minutes for the valuable 10 minutes’ break between classes. But when the bell for the next class rings, you can’t believe how ___41__ time has passed.

If you are ___42___ with this scene, you’ll know how time flies when you are having fun and __43__ when you are bored. Now scientists have ___44___ a reason why this is the case.

Scans have shown that patterns of activity in the brain ___45___ according to how we focus on a task. When we are ___46___ ,we concentrate more on how time is passing. And ____47___ makes our brains think the clock is ticking more slowly.

In an experiment ____48___ by a French laboratory, 12 volunteers watched an image ___49___ researchers monitored their brain activity.

The volunteers were told to __50____ concentrate on how long an image appeared for, then ____51___ the color of the image, and thirdly, study both duration(持續(xù)時(shí)間,期間) and color. The results showed that ___52__ was more active when the volunteers paid attention to ___53__ subjects.

It is thought __54____ if the brain is focusing on many aspects of a task, it has to    ___55__ its resources, and pays less attention to the clock. ____56__, time passes without us really __57___it, and seems to go quickly. If the brain is not so active, it concentrates its ___58____ energies on monitoring the passing of time. __59__, time seems to drag.

Next time you feel bored __60___, perhaps you should pay more attention to what the teacher is saying!

41. A. slowly     B. quickly     C. terribly     D. foolishly

42. A. disappointed     B. satisfied     C. familiar       D. similar

43. A. drags       B. stops       C. goes       D. backs

44. A. thought over    B. made up   C. suggested with    D. come up with

45. A. change    B. develop     C. grow     D. slow

46. A. sleepy    B. bored    C. excited    D. active

47. A. which       B. we      C. this    D. what

48. A. produced    B. carried out    C. tried     D. did

49. A. where      B. when      C. while        D. as

50. A. partly        B. quickly       C. how      D. first

51. A. familiar with     B. focus on    C. make out    D. tell apart

52. A. the researchers     B. the experiment      C. the clock      D. the brain

53. A. no             B. less       C. some         D. more

54. A. when           B. which      C. that         D. where

55. A. fix            B. gather     C. reach        D. spread

56. A. However    B. Furthermore     C. Therefore      D. Finally

57. A. recognizing    B. watching    C. noticing     D. counting

58. A. enough      B. full       C. right      D. proper

59. A. In fact     B. As a result    C. For example    D. Instead

60. A. in class    B. with work    C. in mind     D. of lessons

查看答案和解析>>

Having friends may well keep you healthier and help you deal with stress better. Some studies show that people with close friends have a greater ability to fight disease than people who are alone.

Place friendship in the first place. Find the time to be with friends even if it means letting the lawn go unmowed or the dishes unwashed for a while. When you can’t get together, use the phone to keep in touch.

Open up to close friends. Keeping a deep friendship requires a level of “heartfelt” intimacy (親密).Don’t be afraid to express your inner fears and disappointments. Listen to your friends when they have problems,but offer advice only when it’s wanted. Help raise friends’ self­esteem when they are sad about a job loss, or other such events.

Have different friends for different activities, such as going to the movies,singing in a choir,and joining in a bowling league.

Don’t wait for a friend to ask for helps. When a friend has the flu,offer to go to the store or drive his or her children to their after­school activities.

Never take a friendship for granted. Like a good marriage,friendship needs care and patience. Become a joiner. Find a group that matches your interests.

Talk to strangers. Conversations started in museums, laundry rooms,or bookstores can lead to firm friendship.

Enroll in an adult­education course. A classroom is an ideal place to meet others with similar interests.

1.People with close friends have a        ability to fight disease than people who are alone.

A. less   B. greater      C.poorer         D. little

2.According to the passage,you’d better offer advice to your friends       .

A. at any moment

B. only when they are happy

C. only when they want it

D. only when you are glad

3.What we should do to have friends according to the author?

A. Make friendship a priority.

B. Open up to close friends.

C. Never take a friendship for granted.

D. All the above.

4.Which of the statements is TRUE according to the passage?

A. You should have different friends for the same activities.

B. You should wait for a friend to ask a favor.

C. You should avoid talking with strangers in museums, laundry rooms, or bookstores.

D. You should never take a friendship for granted.

5.The underlined word “enroll” in the last paragraph means         .

A. give  B. join   C. get    D. catch

 

查看答案和解析>>

A month after Hurricane Katrina, I returned home in New Orleans. There lay my house, reduced to waist-high rains, smelly and dirty.

Before the trip, I’d had my car fixed. When the office employee of the garage was writing up the bill, she noticed my Louisiana license plate. “You from New Orleans?” she asked. I said I was, “No charge.” She said, and firmly shook her head when I reached for my wallet. The next day I went for a haircut, and the same thing happened.

As my wife was studying in Florida, we decided to move there and tried to find a rental house that we could afford while also paying off a mortgage(抵押貸款) on our ruined house. We looked at many places, but none was satisfactory. We’d began to accept that we’d have to live in extremely reduced circumstances for a while, when I got a very curious e-mail from a James Kemmedy in California. He’d read some pieces I’d written about our sufferings for state, the online magazine and wanted to give us (“no conditions attached”) a new house across the lake from New Orleans. It sounded a good to her return, but I replied, thinking him for his exceptional generosity, then we to go back. Then the University of Florida offered to let him house to me. While he want to England on his one year, paid leave. The rent was rather reasonable. I mentioned the poet’s offer to James Kemdedy, and the next day he sent a check covering our entire rent for eight months.

Throughout this painful experience, the kindness of strangers has done much to bring back my faith in humanity. It’s almost worth losing you wordy possessions to be reminded that people really when given had a channel.  

The garage employee’s attitude toward the author was that of        .

A. unconcern               B. sympathy        C. doubt               D. tolerance

What do we know about James Kemnedy?

A. He was a written of an online magazine

B. He was a poet at the University of Florida

C. He offered the author a new house free of charge.

D. He learned about the author’s sufferings.

It can be inferred from the text that        .

A. the author’s family was in financial difficulty

B. rents were comparatively reasonable despite the disaster

C. houses were difficult to find in the hurricane stricken area

D. the mortgage on the ruined house was paid off by the bank

The author learned from his experience that        .

A. wordy possessions can be given up when necessary

B. generosity should be encouraged in some cases  

C. people benefit from their sad stories

D. human beings are kind after all.

Which would be the best title for the text?

A. Terrible Hurricane Katrina.

B. Hurricane Is Heartless While Strangers Are Kind.

C. Study in Florida.

D. The Importance of Helping Others.

查看答案和解析>>

The Five Rules for Keeping Fit

Hi, there! I'm Grystal Collins, and I'm very happy to share some time with you. So, you want to keep fit, huh? Well, you surely came to the right place. Together we can keep fit and healthy, and succeed in doing that. It's easy. Everybody can do it, you hear? Just remember the five golden rules.

Number one: Always wear comfortable clothes when you are exercising. You need to feel comfortable and relaxed(放松).

Number two: You should always do some warming-up exercise first to get your body ready for the real thing.

Number three: Never try to do too much exercise too soon. Take it nice and easy now, you hear? There's no rush about this.

Number four: Don't forget to relax for about five minutes when you've finished your exercise. You need to rest a little bit after you've been exercising.

And here is the golden rule Number five. Stop at once if you feel any pain in your neck, head or any part of your body.

1.The students may most probably be the people ___________.

A.who are ill

B.who want to be healthier

C.who are Crystal Collins' good friends

D.who are not interested in taking exercise

2.Crystal Collins may most probably say this            .

A.before the exercise starts

B.when the exercise is over

C.during the exercise

D.a(chǎn)s soon as the exercise has started

3.Which of the following is NOT true?

A.You should do some warming-up exercise before the real thing.

B.You should wear comfortable clothes.

C.You should rest for a while when you are doing warming-up exercise.

D.You should stop if you feel any pain in your body.

 

查看答案和解析>>

This is my third story. When I was 17,I read a quote that 1 something like,“If you live each day 2 it was your last,someday you'll most certainly be right.”Since then,for the past thirty?three years,I've looked 3 the mirror every morning and asked myself:“If today were the last day of my life,would I want to do what I am about to do today?”And whenever the answer has been“No”for too many days in a 4 ,I know I need to change something.

  About a year ago I was  5 with cancer. The doctors told me this was almost certainly a type of cancer that is incurable,and that I should  6 to live no longer than three to six months. They advised me to go home and get my 7 in order,which is doctors' code for“prepare to 8 ”. Later that evening when the doctors  9 the cells taken from my pancreas(胰腺)under a microscope,they started crying because it turned out to be a very rare form of pancreatic cancer that is  10 with surgery. I had the surgery and,11 ,I'm fine now.

  This was the closest I've been to facing death,and I hope it's the closest I get for a few more decades. Death is the 12 we all share. No one has  13 escaped it. And that is 14 it should be,because death is very likely the single 15 invention of life. It's life's change agent. It clears out the old to make  16 for the new. Your time is  17 ,so don't waste it living someone else's life. Don't be trapped by dogma(信條)—which is living with the results of other people's thinking. Don't let the noise of  18 opinions drown out your own inner voice. And most importantly,have the courage to  19 your heart and intuition(直覺). They 20 already know what you truly want to become. Everything else is secondary.

(1)A. said     B. described  C. went     D. expressed

(2)A. unless    B. as if     C. even if    D. as long as

(3)A. in      B. at     C. through    D. On

(4)A. row     B. minute    C. sense    D. word

(5)A. connected  B. infected   C. affected  D. diagnosed

(6)A. want    B. dream    C. expect   D. imagine

(7)A. duties    B. businesses C. affairs   D. life

(8)A. work    B. start     C. talk    D. die

(9)A. looked   B. viewed   C. realized   D. noticed

(10)A. curable   B. possible    C. acceptable D. suitable

(11)A. carefully  B. thankfully   C. anxiously  D. hopefully

(12)A. possession B. destination  C. expectation D. position

(13)A. ever     B. even     C. never    D. still

(14)A. when    B. while     C. as      D. since

(15)A. better   B. worst     C. worse    D. best

(16)A. use    B. a difference  C. sense     D. way

(17)A. endless  B. repeated   C. countless   D. limited

(18)A. others'   B. others    C. anyone's    D. some others

(19)A. listen   B. follow     C. take      D. accept

(20)A. however B.whatever  C.somehow  D.Somewhat

查看答案和解析>>


同步練習(xí)冊(cè)答案