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参考解析
解析：
相关考题：
下面这段文字有九个句子，对段内层次有四种不同的理解，选出正确的一种。①今天的改革要求我们这一代人为民族振兴付出代价。②这个代价就是艰苦奋斗，要打算过一段苦日子。③经济学上讲投入产出。④我们今天吃点苦，就是为子孙后代投入。⑤有人看改革只顾眼前利益，这是很浅薄的。⑥在世界历史上，任何一个转折时期都是充满动荡和艰苦的。⑦现代人看欧洲的文艺复兴以为是太平盛世，其实那时的人很苦，是在艰苦中开创新纪元的。⑧未来的人看我们今天的改革，也会跟当代人不同。⑨只有历史地看我们所处的大变革时代，才能树立民族的责任感和历史的责任感。A.①|②③④⑤||⑥⑦⑧|⑨ B.①②|③④⑤||⑥⑦⑧⑨C.①|②||③④⑤||⑥⑦③|⑨ D.①②|③④⑤|⑥⑦③⑨
Can animals be made to work for us?Some scientists think that one day animals may be trained?to do a number of simple jobs that are now done by human beings.They point out that at a circus,for example,we may see elephants,monkeys,dogs and other ani-mals doing quite skillful things.Perhaps you have seen them on the television or in a film.If you?watch closely,you may notice that the trainer always gives the animal a piece of candy or a piece of?fruit as a reward.The scientists say that many different animals may be trained to do a number of?simple jobs if they know they will get a reward for doing them.Of course,as we know,dogs can be used to guard a house,and soldiers in both old and modern?times have used geese to give warning by making a lot of noise when a stranger or an enemy comes?near.But it may be possible to train animals to work in factories.In Russia,for example,pigeons?which are birds with good eyesight,are being nsed to watch out for faults in small steel balls that are?being made in one factory.When the pigeon sees a ball which looks different from others,it touches a?steel plate with its beak.This turns on a light to warn people in the factory.At the same time a few?seeds are given as a reward.It takes three to five weeks to train a pigeon to do this and one pigeon?can inspect 3,000 to 4,000 balls an hour.Apes have been used in America in helping to make cars,and scientists believe that these large?monkeys may be one day gather crops and even drive trains.The trainer usually gives the animal a piece of candy or fruit__________.A.when it is hungryB.before it plays a trickC.when it starts to play a trickD.after it has done the trick
提示：星期五晚上有音乐会，Chris得到两张票，打电话给Linda，问她是否有空一同前往，并约她音乐会后一起吃饭。Linda听了非常高兴，两人相约六点四十五分在入口处见面。Linda:Hello!This is Linda speaking.Chris:Hello,Linda,this is Chris.51?thisFriday evening?Linda:Yes,why?Chris:There′sa good concert,and I′ve got two tickets.I wonder?52Linda:That′s great!53?Chris:7o′clock.But how about?54 at 6:45?Linda:OK.I think I can make it.Chris:After the concert,55,shall we?Linda:Wonderful!Why don′t we go to a Chinese restaurant?Chris:Whynot?OK,see you Friday.Linda:See you then.Bye！第51题答案是
Which is the best title of the passage A.What a Rabies B.The Horrible RabiesC.What Are Animal Bites D.How to Control Rabies