题目内容

【题目】读下面两图,回答下列问题。

1图中A山脉有典型的丹霞地貌,该处丹霞地貌是由红色砂岩和砂砾岩组成的低山丘陵,下列关于丹霞地貌发育过程中经历的地质作用(下图中阴影表示的是红色砂岩或砂砾岩)正确的排序是

A. ④①③② B. ③④①② C. ④①②③ D. ①②③④

2某地理研究小组在B处研究并绘制了近地面的等压面示意图(图乙),关于该图的判断,正确的是

A. C地多晴朗天气 B. C地气温低于F地

C. 图中气压F>C>D>E D. F地盛行上升气流

【答案】

1C

2C

【解析】试题分析:

1】形成丹霞地貌的岩层是沉积岩,所以这里必然先形成洼地,然后发生了沉积作用。后来又有地壳抬升,岩层隆起,高出地表,如图所示。最后被外力侵蚀,形成丹霞地貌,所以正确的顺序是④①②③C对。

2】根据图中等压面分析,F气压高,C地气压低。所以C地是上升气流,多阴雨天气,A错。F地盛行下沉气流,天气晴朗,D错。根据气压与气温的关系,C地气温高于F地,B错。根据热力环流原理,图中气压F>C>D>EC对。

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【题目】阅读理解。

California Condor’s Shocking Recovery

California condors are North America’s largest birds, with wing-length of up to 3 meters. In the 1980s, electrical lines and lead poisoning(铅中毒) nearly drove them to dying out. Now, electric shock training and medical treatment are helping to rescue these big birds.

In the late 1980s, the last few condors were taken from the wild, and there are now more than 150 flying over California and nearby Arizona, Utah and Baja in Mexico.

Electrical lines have been killing them off. “As they go in to rest for the night, they just don’t see the power lines,” says Bruce Rideout of San Diego Zoo. Their wings can bridge the gap between lines, resulting in electrocution(电死) if they touch two lines at once.

So scientists have come up with a shocking idea. Tall poles, placed in large training areas, teach the birds to stay clear of electrical lines by giving them a painful but undeadly electric shock. Before the training was introduced, 66% of set-freed condors died of electrocution. This has now dropped to 18%.

Lead poisonous has proved more difficult to deal with. When condors eat dead bodies of other animals containing lead, they absorb large quantities of lead. This affects their nervous systems and ability to produce baby birds, and can lead to kidney() failures and death. So condors with high levels of lead are sent to Los Angeles Zoo, where they are treated with calcium EDTA, a chemical that removes lead from the blood over several days. This work is starting to pay off. The annual death rate for adult condors has dropped from 38% in 2000 to 5.4% in 2011.

Rideout’s team thinks that the California condors’ average survival time in the wild is now just under eight years. “Although these measures are not effective forever, they are vital for now,” he says. “They are truly good birds that are worth every effort we put into recovering them.

【1】California condors attract researchers’ interest because they .

A.are active at night

B.had to be bred in the wild

C.are found on in California

D.almost died out in the 1980s

【2】Researchers have found electrical lines are.

A.blocking condors’ journey home

B. big killers of Califorbnia condoras

C. rest places for condors at night

D. used to keep condors away

【3】According to Paraghaph 5 ,lead poisoning.

A.makes condors too nervous to fly

B. has little effect on condors’ kidneys

C. can hardly be gotten rid of form condors’ blood

D. makes it different for condors to produce baby birds

【4】The passage shows that .

A.the average survival time of condors is satisfactory

B.Rideout’s research interest lies in electric engineering

C.the efforts to protect condors have brought good results

D.researchers have found the final answers to the problem

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