If your mother wants to tell you somethi

题型:阅读理解

问题:

       If your mother wants to tell you something, she uses words. Birds cannot talk as we do. But some birds can make sounds to warn their young of danger. They have their own way to make the young birds do certain things.

The jackdaw is a kind of blackbirds that lives in Europe. Jackdaws live together in flocks(群).Young jackdaws do not know their enemies. When an older jackdaw sees a dog, it makes a loud rattling(格格响的)sound. The younger birds know this sound means an enemy is nearby. The sound warns them to know their enemies.

If a young jackdaw is in a dangerous place, a jackdaw parent flies over him from behind. The parent bird flies low over the young bird’s back. The parent’s tail feathers(羽毛) move quickly from side to side. It is trying to say,“Follow me.”At the same time, the parent calls out,“Key-aw,”key-aw.”The parent means,“Fly home with me.”The young bird then follows the older one home. Young jackdaws do not have to learn what certain sounds mean. They know the meaning of these sounds form the time they hatch(孵出).

72.The jackdaw lives in       .

A.Europe     B.Australia   C.America   D.Africa

73.Which of the following does this story lead you to believe?

A.All animal parents can talk to their young.   

B.Dogs are the most dangerous enemies for jackdaws.

C.Young jackdaws know the meaning of their parents’ sound when they grow older.

D.Some birds can give certain information to one another.

74.Parent jackdaw can use their tail feathers to       .

A.ask their young to follow them      B.play a game with the young

C.tell the meal time            D.give a warning of a fire

75.This story tells much about       .

A.the danger of jackdaws   

B.ways in which mother can talk to their children

C.the way jackdaws warn their young of danger

D.how the jackdaw are living

76.When an old jackdaw sees a dog, it       .

A.calls out,“Follow me.”       B.makes a loud sound

C.flies away               D.fights the dog

考点:政治经济类阅读历史文化类阅读
题型:阅读理解

患者,男,55岁,间歇性胃痛发作5年,近2个月发作频繁,无规律,同时体重减轻,大便隐血试验持续阳性。应首先考虑的是()

A.食管癌

B.胃溃疡穿孔

C.胃癌

D.十二指肠溃疡穿孔

E.瘢痕性幽门梗阻

题型:阅读理解
当a为奇数时,
2a3a5a
(-30)a
=______.
题型:阅读理解

What the remote areas need ________ education to children and  what the children need

________ good textbooks and teachers at the moment.[    ]

A. is; are  

B. are; is

C. was; were  

D. were; was

题型:阅读理解

投融资环境调查主要包括()。

A、法律法规

B、经济环境

C、融资渠道

D、税务条件

E、自然环境

题型:阅读理解

样本也叫子样和样品,它是从母体中随机抽取出来的,是对它进行测量试验的一部分产品。

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