2．Each year，thousands of dolphins are caught in fishing nets around the world．Now，biologists in Canada are trying to find to find a way to make dolphins safe．
Biologists in Canada are trying to find out how to prevent dolphins from being caught in fishing nets．They say their study aims is to discover whether dolphins can perceive （察觉）fishing nets and why they swim into them．Some dolphins in Canada are being trained to swim with their eyes covered．
They process takes a long time，as dolphins are uncomfortable at first with foreign objects in their own bodies．By working slowly and rewarding the dolphins with fish，the animals grow comfortable in swimming with their eyes covered at last．
Every dolphin is a little bit different．Some dolphins are every comfortable having them on their bodies．Some dolphins were a little uncomfortable having them on their bodies and will try to swim away or try and take them off．But I think all of the dolphins with their eyes covered can listen to sound cues （暗号） that help them find their way around by using passive listening．
The scientists want to discover how dolphins choose to use echolocation （同声定位法），or passive listening．
Further experiments will have the dolphins swim through an obstacle （障碍物） field of good objects that won't hurt the animals，such as nets，ropes in the water．
61．Why are some biologists in Canada want to protect dolphins？B
A．Because dolphins are a kind of animals that are delicious．
B．Because many dolphins are caught in fishing nets．
C．Because they like dolphins．
D．Because dolphins can swim．
62．What's the study aims of the biologists in Canada？A
a．To discover whether dolphins can perceive fishing nets．
b．To discover why dolphins swim into them．
c．To catch more dolphins．
d．To stop them from catching dolphins．
A．a； b
B．b； c
C．c； d
D．a； d
63．How do the scientists in Canada train dolphins？B
A．By working slowly and making friends with them．
B．By rewarding the dolphins with fish．
C．By working slowly and rewarding the dolphins with fish．
D．By feeding them delicious food and playing with them．
64．How do the dolphins with their eyes covered find their way around？A
A．By using passive listening．
B．By watching．
C．By water in the sea．
D．With the help of scientist．
65．What will the further experiments do？D
A．To make dolphins live better．
B．Scientists will carry away all the obstacle．
C．Don't let dolphins swim in the sea．
D．Ask the dolphins swim through an obstacle field of good objects．
分析 有很多海豚被渔网网住，加拿大的科学家想要保护海豚，通过训练和研究找到海豚是否能否感应到渔网，为什么会钻进渔网，从而去保护海豚．
解答 BABAD
61．B．细节题，结合thousands of dolphins are caught in fishing nets around the world．Now，biologists in Canada are trying to find to find a way to make dolphins safe是因为很多海豚被渔网网住，故选B．
62．A．细节题，结合They say their study aims is to discover whether dolphins can perceive （察觉）fishing nets and why they swim into them是为了找到海豚是否能否感应到渔网，为什么会钻进渔网，故选A．
63．B．细节题，结合By working slowly and rewarding the dolphins with fish，the animals grow comfortable in swimming with their eyes covered at last．可知是奖励鱼，故选B．
64．A．细节题，结合But I think all of the dolphins with their eyes covered can listen to sound cues （暗号） that help them find their way around by using passive listening．可知是通过被动倾听，故选A．
65．D．细节题，结合Further experiments will have the dolphins swim through an obstacle （障碍物） field of good objects that won't hurt the animals，such as nets，ropes in the water．进一步实验是让海豚游过不会伤害动物的障碍物，故选D．
点评 在做英语阅读时，首先通读全文，不要被某个或某些自己不熟悉的单词所困扰，了解大概意思．然后看问题，带着问题精读全文，同时选择答案，必要时用排除法，注意，文章中一般都会有答案，有的可以直接找到，英美人并不愿意把问题弄得太深奥，不必想得太复杂，很多都是直接了当的，千万别自己发挥想象．但不得不说，平时多积累词汇量的话，答题可能就会主动一些，有把握一些．
