Many of the small animals are very clever and they have to h_____ (1) from

an enemy. It isn’t often s_____(2) to be small in a world full of larger, more dangerous

creatures(生物). A small skunk(黄鼠狼), however, will f_____(3) bravely just about any danger. E______(4) though a skunk has short teeth and small claws(爪子),most humans and other animals will leave a skunk a______(5).

What power does the skunk have to f______(6) an enemy away? It can give out a liquid(液体) that smells terrible into the air. When an enemy c_______(7) too close, the skunk puts up its tail and gives a w______(8) with its front claw. If the enemy still s______(9) around, the skunk gives out a liquid. Its smell is so b______(10) that even the skunk leaves the scene in a hurry.

If the skunk gives out the liquid into another animal’s eyes, that other animal will have t______(11) in seeing for a while. The smell of a skunk can be smelled from a distance of h______(12) a kilometre or more.

1. ___________ 2. ___________ 3. ___________ 4. ___________ 5. ___________

16. ___________ 17. ___________ 18. ___________

11. ___________ 12. ___________ 13. ___________ 14. ___________ 15. ___________

5. 比起太阳系里别的行星来说，火星的外表更像地球的外表。

　　 The surface of Mars is ( 15 ) ( 16 ) the surface of Earth than ( 17) ( 18 ) planet in the solar system.

4. 为了保持身体健康，我们每个人都应劳逸适度。

　　 ( 11 ) ( 12 ) to keep healthy, every one of us ought to achieve a ( 13 ) ( 14 ) work and rest.

3. 那位科学家宁愿尝试不成功，也不愿意放弃他的计划。

　　 The scientist ( 7 ) ( 8 ) try and fail than ( 9 ) ( 10 ) his plan.

2. 雷锋一生致力于帮助那些需要帮助的人。

　　 Lei Feng devoted his whole life ( 4 ) ( 5 ) those who ( 6 ) in need of help.

1. 大多数肥胖症能够预防或治愈。

　　 Most cases of fatness can ( 1 ) ( 2 ) or ( 3 ) .

10. Boats float in the direction of wind if they _______ (not control).

9. It was raining hard, but none of them said they ________ (stop) working in the fields.