·交际英语·
A
Lewis and Carol are trying to figure out a puzzle(解谜). (Lewis=L, Carol=C)
L: OK. Let me get this straight. A man has a wolf, a goat and a cabbage.
C: Right, and he's trying to get them home.
L: However, there's a river in his way.
C: Yes, but he finds a boat on his side of the river.
L: That's good. The man can just put everything in the boat and cross the river.
C: No, he can't. The boat is only big enough for him and one other thing.
L: Oh, well, that changes things.
C: It sure does, but that's not all.
figure out 弄清楚 cabbage /ˈkæbɪdʒ/ n. 卷心菜

答案略

B
Carol and Lewis continue working on the puzzle.
C: The man has some other concerns. For one, he must consider his items' safety.
L: Right, and he can't leave the wolf alone with the goat. If he does, the wolf will eat
the goat.
C: Correct, and the same is true for the goat and the cabbage.
L: This puzzle is getting more difficult.
C: For another, the man can't waste too much energy.
L: Ah, so he needs to get everything across in the fewest trips.
C: You got it.
L: OK. Let's see if we can figure out the answer to this puzzle.
concern /kən'sɜːn/ n. 担心,忧虑 waste /weɪst/ vt. 浪费

答案略