问题 阅读理解

Rico is a dog who lives in Germany(德国). His owners trained him from a young age to find his toys. When they say the name of a certain toy, Rico can find it. In fact, he seems to know the names of 200 toys!

Some researchers in Germany wanted to test Rico. They put his toys in a room and then told him to go in the room and find a certain toy. Since nobody was in the room with Rico, he had no help from anyone finding the right toy. The researchers did this test forty times. Rico found the right toy thirty-seven times!

Then the researchers tried something else. They put seven of Rico’s toys in the room together with one new toy that Rico had never seen before. Then they told Rico to go into the room and get the new toy. This new toy had a name Rico had never heard before. Rico found the right toy seven out of ten times!

Researchers cannot really say that Rico knows words or language. However, these tests seem to show that Rico can think about what he hears and think about what he knows. In fact, Rico seems to think and remember things as well as a three-year-old child.

From these tests, animal researchers know one thing for sure. Rico has given them a lot to think about.

小题1:From the passage we know that Rico is good at ______.

A.catching toys

B.counting toys

C.finding toys

D.putting toys in order小题2: At first researchers asked Rico to ______.

A.bring a certain toy out of a room

B.choose a toy that he liked best

C.name toys and put them away

D.put his toys into his room小题3:Rico went into the room _______ times to find a new toy he did not know.

A.seven

B.thirty-seven

C.ten

D.forty小题4: The best title for the passage is ________.

A.German dogs are the smartest

B.An unusual dog

C.How dogs use language

D.The best toys for Rico

答案

   

小题1: C

小题2: A

小题3: C

小题4: B

题目分析:本文主要讲述的是德国一条不同寻常的狗,它能记住200个玩具的名字,研究者们对它进行了一系列的测试,第一个测试把一个玩具放在一个房间里让他找出,在没有人帮助的情况下,这个测试做了四十次,有三十七次都是对的;第二次测试是把七个玩具和一个它从未见过的新玩具放在一起,让它找出新玩具,它十次有七次做对了。研究者最后得出的结论是它像三岁孩子一样思想和记忆。

小题1:细节理解题。从In fact, he seems to know the names of 200 toys!实际上,他似乎知道200个玩具的名字!可知答案选C。

小题2:细节理解题。从Rico found the right toy seven out of ten times!瑞可十次有九次正确地找到玩具!

可知答案选A。

小题3:细节理解题。从 The researchers did this test forty times研究者们测试了40次,可知答案选C。

小题4:标题归纳题。从 In fact, Rico seems to think and remember things as well as a three-year-old child实际上,瑞可似乎像一个三岁的孩子那样思考和记忆,及全文可得知答案选B。

实验题

如图甲所示,小明在探究“杠杆的平衡条件”实验中所用的实验器材有:杠杆、支架、弹簧测力计、刻度尺、细线和质量相同的钩码若干个。

⑴实验前,将杠杆中点置于支架上,当杠杆静止时,发现杠杆右端下沉,此时应把杠杆左端的平衡螺母向

      (填“左”或“右”)调节,使杠杆在不挂钩码时,达到水平平衡状态。

⑵杠杆调节平衡后,小明在杠杆上A点处挂4个钩码,在B点处挂6个钩码杠杆恰好在原位置平衡。于是小明便根据这次实验得出了杠杆的平衡条件为F1l1= F2l2。他这样得出的结论是否合理?      (填“合理”或“不合理”);理由是:                 

⑶实验结束后,小明提出了新的探究问题:“若支点不在杠杆的中点时,杠杆的平衡条件是否仍然成立?”于是小明同学利用如图乙所示装置进行探究,发现在杠杆左端的不同位置,用弹簧测力计竖直向上拉使杠杆处于水平平衡时,测出的拉力大小都与杠杆平衡条件不相符。其原因可能是:                                    

⑷杠杆不处于水平位置能否平衡?小海和小红意见不同。小海认为能平衡,于是他每次让杠杆倾斜时静止,这样实验也得出了同样的杠杆平衡条件。

小海认为杠杆平衡不一定是水平的,这种说法对吗?           (填“对”或“错”),小海这种方案与小红让杠杆在水平位置做实验的方案相比较,你认为小海和小红哪位同学的实验方案好?请说明理由:

答:           的实验方案好;理由是:            。

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