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大学英语六级考试巅峰训练一本通 Model test 2
2014-08-14来源:和谐英语
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[13:39.94]for example,you should choose a breed that has
[13:41.97]the right size and characteristics.
[13:44.70]You must also be ready to devote a good deal of time
[13:46.99]to train the dog when it is young and give it the exercise
[13:50.29]it needs to throughout its life,unless live
[13:53.01]in the country and can let it run freely.
[13:56.07]Dogs are demanding pets. Whereas cats identify
[13:58.65]with the house and so are content if their place there
[14:02.36]is secure a dog identifies with its master and
[14:05.60]consequently wants him to show proof of his affection.
[14:09.82]The best time to buy a baby-dog is when it is
[14:12.40]between 6 and 8 weeks old so that it can transfer
[14:15.24]its affection from its mother to its master.
[14:17.96]If baby dogs have not established a relationship with
[14:20.22]the human being until they are over three months old,
[14:23.13]their strong relationship will always be with dogs.
[14:26.47]They are likely to be too shy when they are brought out
[14:29.24]into the world to become good pets.
[14:32.12]Questions 26 to 28 are based on the passage you have just heard.
[14:36.63]26. What’s mentioned as a consideration in buying a dog?
[14:55.69]27. Why does the speaker say a dog is
[14:58.82]a more demanding pet than a cat?
[15:15.30]28. Why is advised to buy baby dogs under three months old?
[15:34.54]Passage Two
[15:36.29]We all scream for water when thirsty,
[15:38.51]but do you know in very hot, dry weather, plants also
[15:41.41]make faint sounds — as if they are crying out for help?
[15:45.21]You see, in a plant’s stem there are hundreds of
[15:47.54]“water pipes” that bring water and minerals
[15:49.61]from the soil all the way up to the leaves.
[15:53.00]As the ground turns dry,
[15:54.44]it becomes harder and harder for the plants to do this.
[15:58.07]In severe droughts, plants have to fight to pull out
[16:00.69]any water available.
[16:02.61]Scientist Robert Winter has found out that
[16:05.05]when it is really bad their water pipes snap
[16:07.45]from the tension like rubber bands.
[16:09.85]When that happens, the whole plant vibrates a little.
[16:12.98]The snapping pipes make noises ten thousand times
[16:15.82]quieter than a whisper.
[16:18.04]Robert knows that healthy, well-watered plants are quiet.