大学英语四级45及答案解析.doc

1、大学英语四级 45 及答案解析(总分：746.58，做题时间：130 分钟)一、Writing (30 minutes)(总题数：1，分数：30.00)1.For this part, you are allowed 30 minutes to write an essay entitled On English Learning. You should write at least 120 words following the outline given below in Chinese: 1. 你认为在英语学习过程中存在的主要问题是什么？ 2. 导致这些问题的原因有哪些？ 3. 对于解决

2、这些问题，你有何建议？ （分数：30.00）_二、Reading Comprehensio(总题数：1，分数：71.00)Panasonic NV-F55MC operating Instructions . Installation () Connection to a TV set 1. Connect the external aerial (天线) to the RF Input Socket (插座) on the VTR (Videotape Recorder). 2. Connect the aerial terminal on your TV set to the RF Out

3、put Socket on the VTR with the supplied DIN-DIN Coaxial Cable. ?In places with higher temperature and high humidity (湿度), people with sensitive skin may feel some electricity. In this case, use the Separate Transformer Adaptor. 3. Connect the AC Mains Lead to the AC Mains Socket of the VTR to the ma

4、ins outlet. 4. If the TV set is equipped with separate video and audio input sockets, it is recommended to connect the VTR to the TV set with separate video and audio cables. () Connection to a Stereo Amplifier 1. Connect the Audio Input Sockets on the VTR to the REC OUT Sockets on the Stereo Amplif

5、ier. 2. Connect the Audio Output Sockets on the VTR to the PLAYBACK Sockets on the Stereo Amplifier. . Tuning the TV Set to the Video Playback Channel () Video Playback Channel Adjustor 1. Turn the TV set on and select the AV program position or another program position that is not occupied by anoth

6、er TV station. 2. Press the VTR ON/OFF Switch to turn the VTR on. ?The corresponding indicator lights up. 3. Set the Karaoke Switch to “1“ or “2“. 4. Tune the selected program position of the TV set to UHF approx, channel C25 ( PAL D) or E38 (PAL I/SECAM D. K. ). Confirm on your TV set that the blue

7、 screen appears. ( C25: China channel 25; E38: Europe standard channel 38) ?If UHF channel E38 (C25) is already occupied by a TV station in your area, the video playback channel can be changed between channel 32 to 40 (24 to 27) on the back of the VTR by using a small screwdriver. 5. Set the Karaoke

8、 Switch to “NORMAL“. Your TV is now ready to receive the RF output signal from the VTR. 6. To check, playback a pre-recorded tape and confirm that the picture quality is satisfactory. () RF Selector Use the RF Selector to select the color TV system used by the TV set to be connected. () PAL/MESECAM

9、Selector This selector should be set according to the color TV system used during recording and play back. When the MESECAM Indicator is lit, the MESECAM is selected. . The Video Cassette () Inserting a Video Cassette 1. Insert the video cassette as shown. The VTR will be turned on automatically and

10、 the cassette will be automatically drawn into the VTR. 2. When a video cassette is inserted, the “ mark will appear. ?When a video cassette with broken erasure (擦除) prevention tab (for example a pre recorded tape) is inserted, playback will start immediately. ?Use the VHS video cassette tapes only.

11、 ?We recommend the “Panasonic Hi-Fi“ high grade video cassette tapes for improved picture and sound quality. () Removing a Video Cassette Press the Eject (弹出) Button. Simply press the Eject button, the VTR turns itself on, ejects the cassette and turns itself off again. . Karaoke Playback () Prepara

12、tion 1. Make sure that the Timer Record Function is set to “OFF“. 2. Insert a Karaoke video cassette. 3. Turn the TV set on and select the video playback channel. 4. Set the Noise Filter/Edit Selector to “OFF“. 5. Connect a microphone to the Microphone Socket on the VTR. 6. Set Karaoke Switch to “1“

13、 or “2“. 7. Select a desired tune. () Singing along with a video cassette 1. Press the Play Button to begin the playback. 2. Adjust the sound volume of the Microphone to the proper volume with the Microphone Mixing Level Control while singing. ?If the volume is too high, the sound from the speaker m

14、ay become distorted (扭曲). ?If acoustic (声音的) feedback occurs, turn the microphone volume down, use the microphone farther away from the speakers, hold the microphone so that it is not pointed toward the speakers, or turn the volume of the TV set down. 3. Adjust the echo effect to your taste with the

15、 Echo Control while singing. ?It is possible to apply the echo effect to the sound from both Microphone 1 and 2 at the same time. 4. Press the Stop Button to stop the playback. . Making Karaoke Tapes () Preparation 1. Make the necessary connections as shown in the connection diagram. 2. Press the In

16、put Signal Selector on the Remote Controller to select the “Al“ program position (or select with the Channel Up or Down Button on the VTR). 3. Set the VTR System Selector to “PAL/MESECAM“, “4.43“ or “3.58“ according to the color TV system of the video source. 4. Connect the VTR to a TV set equipped

17、with separate video and audio input sockets and using the same color TV system as the video source. () Cautions for Making Karaoke Tapes When making Karaoke tapes, be sure to adhere to the following points. 1. Select the SP mode on the VTR for recording. 2. Make sure that the length of the intervals

18、 between tunes ( soundless parts) is more than 6 seconds. ?Make sure that the noise level of these parts is kept to an absolute minimum. 3. Record only tunes with a length of more than 40 seconds. 4. When making Karaoke tapes, use the Pause/Still Button for editing. ?This minimizes noise at the poin

19、ts where successive recordings are joined. . Recording from a TV Broadcast Signal () Preparation 1. Make sure that the Timer Record Function is set to “OFF“. 2. Insert a video cassette with tile erasure prevention tab intact. 3. Set the Tape Speed Selector to “SP“ or “LP“. 4. Adjust the audio record

20、ing level as shown. () Tape Speed Selector (SP/LP) For recording, either of two tape speeds can be selected. During playback, the VTR will automatically select the correct speed. ?SP Mode: For better picture quality. ?LP Mode: For longer recording time. The picture quality in the LP mode is not as g

21、ood as that in the SP mode. () Recording 1. Select on the VTR, the program position (channel) to be recorded. In order to confirm proper reception, turn on the TV set and select the video playback channel 2. Press the Record Button. 3. To finish the recording, press the Stop Button. Note: If the Kar

22、aoke Switch is not set to “NORMAL“, recording is not possible. Confirm that the VTR System Selector is set to “PAL/MESECAM“. （分数：71.00）(1).This passage is mainly about how to use a videotape recorder. （分数：7.10）A.YB.NC.NG(2).We should always connect the VTR to the TV set with the supplied DIN-DIN Coa

23、xial Cable. （分数：7.10）A.YB.NC.NG(3).It is unnecessary to turn on the VTR while tuning the TV set to the Video Playback Channel. （分数：7.10）A.YB.NC.NG(4).When we are to remove a video cassette from a VTR, we should first turn on the VTR and then press the Eject Button. （分数：7.10）A.YB.NC.NG(5).While playi

24、ng back Karaoke, if there is acoustic feedback, we should turn the micro phone volume down and put the microphone farther away from the speaker. （分数：7.10）A.YB.NC.NG(6).The Edit Button is available for editing when we are making Karaoke. （分数：7.10）A.YB.NC.NG(7).While making recordings of the TV broadc

25、ast signal, if we choose the SP mode, we will have better picture quality. （分数：7.10）A.YB.NC.NG(8).While installing, ff one feels some electricity, he can use _. （分数：7.10）_(9).If you want to enjoy better picture and sound quality, it is recommended that you use the _ video cassette tapes. （分数：7.10）_(

26、10).While making Karaoke tapes, we should see to it that the length of the intervals between tunes is more than _ seconds. （分数：7.10）_三、Listening Comprehens(总题数：1，分数：15.00)A.The man doesnt want to see Mr. Williams.B.Mr. Jones is in an inferior position than Mr. Williams.C.Mr. Jones used to be in char

27、ge.D.Mr. Williams doesnt want to do tomorrow.A.They need to make more efforts.B.Theyll have more work to do tomorrow.C.The others have done the greater part of it.D.Theyve finished more than half of it.A.She was feeling very sorry.B.She felt a bit annoyed.C.She was in a hurry.D.She was in her office

28、.A.Jane was telling a lie.B.The woman wasnt being sincere.C.Jane has already come back from Paris.D.Jane wasnt in Paris that day.A.The knife belongs to him.B.Bob should mind his own business.C.The man once borrowed Bobs knife.D.Bobs knife isnt as good as that of the man.A.Hell miss the meeting that

29、afternoon.B.Hell have an appointment with the host.C.He wont miss the meeting.D.He is very hardworking.A.Because she wont fulfill her promise.B.Because her mother would be very angry.C.Because she cant finish the job ahead of schedule.D.Because she would be the last to finish the job.A.He always tal

30、ks on the phone for that long if its toll free.B.They have so much free time to talk on the phone for that long.C.They talked on the phone for too long.D.He wants to know what they talked about.四、Section B(总题数：2，分数：10.00)A.In a supermarket.B.In a restaurant.C.In an appliance store.D.In a department

31、store.A.A TV set.B.A stereo.C.An alarm clock.D.A battery-operated clock radio.A.The store doesnt have the model he wants.B.The store doesnt take credit cards.C.The clerk insults the man.D.The clock radio is too expensive.A.To go boating on the St. Lawrence River.B.To go sightseeing in Quebec Provinc

32、e.C.To call on a friend in Quebec City.D.To attend a wedding in Montreal.A.Study the map of Quebec Province.B.Find more about Quebec City.C.Brush up on her French.D.Learn more about the local customs.A.Its most beautiful in summer.B.It has many historical buildings.C.It was greatly expanded in the 1

33、8th century.D.Its the only French-speaking city in Canada.A.A person is doing a job which he likes very much.B.A person is doing a job which he doesnt like.C.A person is doing a job which he is not suited for.D.A person is doing a job which he thinks very important.A.Because it will make a person ea

34、rn a lot of money.B.Because many people in the world dont want to be square pegs.C.Because good jobs make them happy.D.Because it will make full use of their talents.A.Businessmen, managers and accountants.B.Chemists, physicists and biologists.C.Governors, doctors and teachers.D.Engineers, public se

35、rvants and news reporters.A.It smashed into a row of houses.B.It was run over by a truck.C.It was too nervous to leave the strip in the middle of the road.D.It hit a truck.A.A passenger.B.The dog.C.The truck-driver.D.A policeman.A.In the street.B.In a family swimming pool.C.In a public swimming pool

36、.D.In a kindergarten.A.A big steak.B.A piece of bread.C.A bottle of milk.D.An extra bone.A.Government and taxes.B.Work and taxes.C.Freedom and taxes.D.Death and taxes.A.Two.B.Three.C.Four.D.Five.A.They begin paying federal taxes from that day.B.It is the last day for people to pay the city tax.C.It

37、is the deadline for paying federal taxes.D.The state tax is due on that day.六、Section C(总题数：1，分数：10.00)In a competitive economy, the consumer usually has the choice of several different (36) 1 of the same product. Yet underneath their labels, the products are often nearly (37) 2. One manufacturers t

38、oothpaste (38) 3 to differ very little from another manufacturers. Thus, manufacturers are (39) 4 with a problemhow to keep sales high enough to stay in business. Manufacturers solve this problem by advertising. They try to (40) 5 to in various ways. In fact, advertisements may be (41) 6 into three

39、types according to the kind of s they use. One type of advertisement tries to (42) 7 to the consumers reasoning mind. It may offer a claim that seems scientific. For example it may say the dentists (43) 8 flash toothpaste. In selling a product, (44) 9. A scientific approach gives the appearance of t

40、ruth. Another type of advertisement tries to amuse the potential buyer. (45) 10. One way of doing this is to make the products appear alive. For example, the advertisers may personify cans of insecticide , and show them attacking mean-faced bugs. Ads of this sort are silly, but they also tend to be

41、amusing. (46) 11. （分数：10.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_七、Reading Comprehensio(总题数：2，分数：355.00)Under proper conditions, sound waves will be reflected from a hillside or other such obstruction. Sound travels at the rate of about one-fifth of a mile per

42、 second. If the hill is eleven hundred feet away, it takes two seconds for the sound to travel to the hill and back. Thus, by timing the interval between a sound and its reflection (the echo), you can estimate the distance to an obstruction. During World War I1 the British used a practical applicati

43、on of this principle to detect German planes on their way to bomb London before the enemy was near the target. They used radio waves instead of sound waves, since radio waves can penetrate fog and clouds. The outnumbered Royal Air Force (RAF) always seemed to the puzzled Germans to be lying in wait

44、at the right time and never to be surprised (袭击). It was radio echoes more than anything else that won the Battle of Britain. Since the radio waves were used to tell the direction in which to send the RAF planes and distance to send them ( their range of flight, in other words), the device was calle

45、d radio directing and ranging, and from the initials the word radar was coined. （分数：177.50）(1).Sound waves reflected from a hill can be used to estimate_.（分数：35.50）A.height of the hillB.speed of soundC.distance of the hillD.intensity of sound(2).The estimate is based on the_.（分数：35.50）A.direction of

46、 the hillB.accepted speed of soundC.interval between sound and echoD.both B and C(3).Practical application of this principle resulted in _.（分数：35.50）A.new electronic instruments for planesB.new radio sets for RAF bombersC.an electronic detecting deviceD.a radio directing and ranging device(4).Radar

47、enabled the English _.（分数：35.50）A.detect German planes on their way to LondonB.direct the outnumbered RAF planes effectivelyC.confuse German bomber pilotsD.both A and B(5).The British used radio waves because they_.（分数：35.50）A.were more exact than sound wavesB.could not be detectedC.could penetrate fog and cloudsD.were easier to use than sound wavesIt is easier to negotiate initial salary requirement because once you are inside, the organizational constraints (约束) influence wage increases. One thing, however, is certain: your chances o