The author's purpose in telling this story is to .
A. point out dogs can also be good workers
B. praise the dogs’ contribution to the north
C. show how dogs learn to adapt to a new life
D. accuse some people of their cruelty to dogs
Buck cornered the wolf which led him to the forest finally many times to .
A. scare him B. fight with him
C. play tricks on him D. make friends with him
After the gamble, Thornton and his partners traveled in the wilderness .
A. with a lot of food B. to buy more dogs
C. with a mapped destination D. to search for an old gold mine
Buck is dangerous to Spitz because he is .
A. larger B. crueler
C. cleverer D. stronger
During the imprisonment on the train, Buck was desperate for .
A. meat B. drink
C. eggs D. bones
课文原词填空
In 1983, he joined the army, and went to flight school He graduated in 1987 and became a 1., In 1998, he2. to be a member of Project 921, which is now called Shenzhou. He was one of the only 14 3. from 1,500 candidates. The team spent the next five years being trained. They not only studied all the subjects4.to be an astronaut, but also learnt5. skills and all about how spaceships and rockets are built. Yang 6. among the very top in the everything the group studied.