不同的白鹳雀鸟群鸣叫的基调相同,但又有各自的“方言”。如果把白鹳雀鸟群A的幼雏a

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问题:

不同的白鹳雀鸟群鸣叫的基调相同,但又有各自的“方言”。如果把白鹳雀鸟群A的幼雏a移动另一个白鹳鸟群B中生长,a的鸣叫就不同于A鸟群,而接近于B鸟群。但若同样把白鹳雀鸟幼雏b移到黄莺群中生活,b长大后却学不会黄莺的鸣叫,请分析: 

(1)a的鸣叫基调与A的鸟群相同是__________行为;a具有B鸟群的“方言”是__________行为。

(2)b鸟学不会黄莺叫声,是因为体内不具备控制黄莺鸣叫的____。

(3)这一探究活动说明__________行为的形成需要以__________行为为基础。

考点:先天性行为和学习行为
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一辆汽车正在做直线运动,它的速度越来越大,已知汽车的牵引力是7200N,则这辆汽车受到的阻力[ ]

A.大于7200N

B.等于7200N

C.小于7200N

D.无法判断

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Australia is largely a nation of immigration(移民), with one in four of Australia’s 21 million population born overseas. But immigrations hoping to become Australian citizens will soon have to take a test examining their knowledge of the country's history and institutions.

While Australia prides itself on its multicultural background, the government wants newcomers to integrate (同化)more  fully . Form later this year, new immigrants will have to show an understanding of the English language. They will also be required to answer 20 questions from a list of 200. Anyone who gives fewer than 12 correct responses will not be accepted.

Immigrants will also have to accept what the government considers to be 10 important Australia values, including “mateship” and “giving people a fair go”. Other important Australia values are said to include tolerance, compassion, gender equality and freedom of speech.

The new citizenship application procedures are detailed in a 40-pages booklet(小册子). It describes Australia as “a nation at ease with the world and  itself” but says that newcomers are expected to respect its values. The booklet sums up mateship as voluntary helping and receiving help from others, especially in difficult times. The immigration Minister said they aimed to achieve a balance between ethnic diversity and social stability(稳定), “particularly as we now draw people from so many different countries and so many different cultures”.

Critics have attacked the English language requirement, pointing out many immigrants could not speak English when they arrived. But the minister said, “We are trying to encourage people to learn English, because we think that is the way they will achieve their dreams in Australia.”

小题1:What’s new in Australia’s immigration policy?

A.New immigrants will have to take a test

B.New immigrants should speak perfect English

C.New immigrants must bring enough money

D.New immigrants must be healthy小题2:Those who want to move to Australia have to answer_____ questions right

A.20

B.12

C.200

D.10小题3:The word "mateship" is closest in meaning to _____.

A.equality

B.freedom

C.fairness

D.friendship小题4:Which is one of the reasons for the change of application?

A.To encourage new immigrants

B.To control the population

C.To promote Australia ' values

D.To teach the English language

题型:填空题

园林植物病原真菌造成的病害有哪几种病症?不同的病症分别是真菌的哪些结构?应如何制片镜检?

题型:填空题

读某岛屿示意图,该岛屿位于()

A.北半球东半球

B.北半球西半球

C.南半球东半球

D.南半球西半球

题型:填空题

右图的人类系谱中,有关遗传病最可能的遗传方式是()

A.常染色体隐性遗传

B.常染色体显性遗传

C.X染色体显性遗传

D.X染色体隐性遗传

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