---Volunteering is getting popular in China.
---Indeed. More people are now aware that helping others benefits themselves a lot.
| A．casually | B．accurately |
| C．tightly | D．Increasingly |
“Humans have a code of ethics (行为规范) ,” says Marc Bekoff, an animal behavior expert at the University of Colorado. “If I don’t play in a certain way, you won’t play with me. Some animals have the same code”
Scientists recently discovered that animals which live in groups, such as elephants, foxes and wolves are especially likely to follow rules. If they don’t, and each does its own thing, the group might break apart. Group members would be forced to live alone. Then they’d have a harder time hunting and raising their young.
That’s probably why a traveling wolf pack stopped and waited to let its slowly moving leader catch up. Similar social ties may have caused a captive elephant to save her friend from drowning. Selfish reasons certainly motivated the male fox, who wanted to keep playing.
Sometimes, though, animals go out of their way to do what’s right, even when there’s nothing in it for them. Nobody knows why. “It might simply feel good to be kind, just as it does for humans,” says Bekoff.
If your friend wasn’t nice to you, what would you do? Maybe you would just walk away. That’s exactly what a wild red fox did when she was play-boxing with another fox. The larger fox, a male, began pushing too hard. The little female didn’t like fighting. She ran away quietly.
“He still wanted to play,” says Marc Bekoff. So the male fox ran after his playmate, bowed down, and rolled over. His body language meant, “Don’t leave. I’ll play nicely.” The female gave him another chance, and the male wrestled more gently this time.
71 How did the little female fox show her dissatisfaction with the larger male one? (no more than 5 words)
Most of the ___are in seasonal work, mainly connected with tourism and agriculture.
| A．work | B．luck | C．chances | D．services |
I told your friends how to get to the hotel, but perhaps I ____have driven her there.
| A．could | B．must | C．might | D．should. |
---Have you seen____pen? I left it here this morning.
---Is it ____black one? I think I saw it somewhere.
| A．a; the | B．the; the | C．the; a | D．a; a |
11.Every boy and every girl ___ a new book.
A. are givenB. is givenC. has givenD. have given
12.Each of us ___ a dictionary of this kind.
We each ___ a dictionary of this kind.
A. has; haveB. have ; haveC. has; hasD. have ; has
13. “All ___ present and all ___ going on well,” our monitor said.
A. is; are B. are ; are C. are; isD. is; is
14. The young ___ happy to give their seats to the old.
A. isB. are C. hasD. have
15. Over sixty percent of the city ____ destroyed in the war.
Thirty-five percent of the doctors ____ women.
A. was; was B. was; wereC. were; were D. were; was
16.The shoes ___ mine. This pair of shoes ___ my brother’s.
A. are; is B. is; isC. are; are D. is; are
17.Large quantities of cotton ___ shipped all over the world already.
A large quantity of bamboo ___ used for pipes to carry water.
A. has been; are B. has been; isC. have been; is D. have been; are
18.Setting fire to the public buildings ___ highly dangerous and forbidden by law.
A. are B. isC. hasD. were
19. The only means to achieve success ___ to appeal to arms.
A. isB. are C. were D. have
20. Whisky and soda ___ always his favourite drink.
A. areB. isC. be D. were