Questions：

1．If two swallows are sitting on a twig¹ and you wish to


get the twig without disturbing the swallows，what shall
you do？

假如两只燕子停在一枝小树枝上，你想弄到那枝小树枝，却不想惊
动燕子，怎么办？

2．If you find three sparrows on the roof and you shoot one，
how many are left？

假如你看见屋顶上有三只麻雀，射掉一只，还有几只？

3．If a burglar² was informed all the exits were guarded，
what could he do to escape？

假如强盗得知所有的出口都有人站岗，那么他怎么才能逃出去？

Keys：

1．Wait till the swallows fly away．..
等燕子飞走了以后去弄。
2．None．The others fly away．..
一只不剩，其余都飞走了。
3．He could go out of the entrance．..
他可以从入口出去。

Notes：

1．swallow/＇sw&l+u/n.燕子
twig/twig/ n．小枝，细枝
2．sparrow/＇sp$r+(/ n．麻雀