Scientists at Harvard University and Bates College find female chimpanzees (黑猩猩) appear to treat sticks as dolls, carrying them around until they have children of their own. Young males engage in such behavior much less frequently.
The new work by Sonya M. Kahlenberg and Richard W. Wrangham, described this week in the journal Current Biology, provides the first evidence of a wild non­human species playing with dolls, as well as the first known sex difference in a wild animal’s choice of playthings.
The two researchers say their work adds to a growing body of evidence that human children are probably born with their own ideas of how they want to behave, rather than simply mirroring other girls who play with dolls and boys who play with trucks. Doll play among humans could have its origins in object—carrying by earlier apes (猿类), they say, suggesting that toy selection is probably not due entirely to socialization.
“In humans, there are obvious sex differences in children’s toy play, and these are remarkably similar across cultures,” says Kahlenberg. “While socialization by elders and peers has been the primary explanation, our work suggests that biology may also have an important role to play in activity preferences.”
In 14 years of data on chimpanzee behavior at the Kibale National Park in Uganda, Kahlenberg and Wrangham counted more than 100 examples of stick­carrying. Some young chimpanzees carried sticks into the nest to sleep with them and on one occasion built a separate nest for the stick. “We have seen juveniles occasionally carrying sticks for many years, and because they sometimes treated them rather like dolls, we wanted to know if in general this behavior tended to represent something like playing with dolls,” says Wrangham, a Professor at Harvard. “If the doll hypothesis (假设) was right, we thought that females should carry sticks more than males do, and that the chimpanzees should stop carrying sticks when they had their first child. We have now watched enough young chimpanzees to prove both points.”
【小题1】What does a female chimpanzee do with sticks?

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。（共5小题；每小题2分，满分10分）

W: Bobby, turn that TV off and set the table. Dinner is almost ready.

M: OK. I’ll be right down…

W:   1  Your father’s plane was delayed, so he won’t be home until after 10:00.

M: Aw, man! Why does he always have to travel so much?   2 

W: I know. Your sister and I feel the same way, but this is the way it has to be right now.

M:   3 

W: That’s because I work from home.   4  Your father is gone a lot, but he also makes good money.

M: Why doesn’t he work from home?

W:   5  If he stayed at home, how would he ever sell anything?

  根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。(其中E=AB；F=AC；G=AD)

M：Mr Smith, have you ever been to the Great Wall?

W：No, actually I’ve never been there.   1.  

M：Would you like to go to the Great Wall?

W： 2.  I’ve been waiting for long. I’d be more than glad to.

M：All right. We’ll go by car. Can you get ready by eight?

W：  3.   I’ll try to make it. Do you think I should ask the hotel to pack me a lunch?

M： 4.  I’ll take care of that. There’s a good restaurant there. Oh, it is likely to be windy on the wall at this time of year.

W： 5.  Shall I take a coat with me?

M：Yes, you’d better take a coat or a sweater. Well, I’ll be off now. I’ve got to see about the arrangements. See you tomorrow.

W：Till then.

A．No, I think there’s no need.

B．Sorry, but I am terribly busy.

C．Yes, I think that’s a good idea.

D．That’ll be fine.

E．Is that so?

F．Of course I’ve heard much about that.

G．I don’t think so

  根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。(其中E=AB；F=AC；G=AD)

M：Mr Smith, have you ever been to the Great Wall?

W：No, actually I’ve never been there.     

M：Would you like to go to the Great Wall?

W：   I’ve been waiting for long. I’d be more than glad to.

M：All right. We’ll go by car. Can you get ready by eight?

W：    I’ll try to make it. Do you think I should ask the hotel to pack me a lunch?

M：  I’ll take care of that. There’s a good restaurant there. Oh, it is likely to be windy on the wall at this time of year.

W：   Shall I take a coat with me?

M：Yes, you’d better take a coat or a sweater. Well, I’ll be off now. I’ve got to see about the arrangements. See you tomorrow.

W：Till then.

A．No, I think there’s no need.

B．Sorry, but I am terribly busy.

C．Yes, I think that’s a good idea.

D．That’ll be fine.

E．Is that so?

F．Of course I’ve heard much about that.

G．I don’t think so

Scientists at Harvard University and Bates College find female chimpanzees (黑猩猩) appear to treat sticks as dolls, carrying them around until they have children of their own. Young males engage in such behavior much less frequently.

The new work by Sonya M. Kahlenberg and Richard W. Wrangham, described this week in the journal Current Biology, provides the first evidence of a wild non­human species playing with dolls, as well as the first known sex difference in a wild animal’s choice of playthings.

The two researchers say their work adds to a growing body of evidence that human children are probably born with their own ideas of how they want to behave, rather than simply mirroring other girls who play with dolls and boys who play with trucks. Doll play among humans could have its origins in object—carrying by earlier apes (猿类), they say, suggesting that toy selection is probably not due entirely to socialization.

“In humans, there are obvious sex differences in children’s toy play, and these are remarkably similar across cultures,” says Kahlenberg. “While socialization by elders and peers has been the primary explanation, our work suggests that biology may also have an important role to play in activity preferences.”

In 14 years of data on chimpanzee behavior at the Kibale National Park in Uganda, Kahlenberg and Wrangham counted more than 100 examples of stick­carrying. Some young chimpanzees carried sticks into the nest to sleep with them and on one occasion built a separate nest for the stick. “We have seen juveniles occasionally carrying sticks for many years, and because they sometimes treated them rather like dolls, we wanted to know if in general this behavior tended to represent something like playing with dolls,” says Wrangham, a Professor at Harvard. “If the doll hypothesis (假设) was right, we thought that females should carry sticks more than males do, and that the chimpanzees should stop carrying sticks when they had their first child. We have now watched enough young chimpanzees to prove both points.”

1.What does a female chimpanzee do with sticks?

2. What causes the different toy selection of chimpanzees, according to the passage?

3.We can infer from the fourth paragraph that ________.

4.It can be concluded from the passage that ________.