為了幫助考生更好復習2013年成人英語三級考試課程，全面了解成人英語三級考試教材的相關重點，小編整理了2013年成人英語三級考試完形填空試題及答案，希望對您參加考試有所幫助！

All (1)_______ things must fight to stay alive. They have to feed on something and at the same time avoid being (2)_______. Therefore they have to solve this big problem of staying alive in their own way. The danger of being eaten in the sea is great. Those plants and animals that do survive usually (3)_______ very fast and in great numbers.

(4)_______ sea animals have defensive devices which help them to survive. The jelly fish have (5)_______ tentacles (觸角) which are used for attack and defense. Another method of (6)_______ which sea plants and animals use is disguise. They usually have the same (7)_______ as their surroundings.

In order to stay alive， animals need to have good senses. Fishes have sharp eyes. Almost all animals are sensitive to (8)_______. Fishes judge movements in the water by (9)_______ of their lines. Fishes and other sea animals can hear well and many of them can (10)_______ different types of warning sound.

1. A. living B. alive 　C. lively D. live

2. A. taken B. gotten C. haven D. eaten

3. A. produce 　B. reproduce 　C. run 　D. swim

4. A. Any 　B. Every C. Certain D. Each

5. A. beautiful B. short 　C. poisonous D. long

6. A. swimming B. survival 　C. flight 　D. growth

7. A. color B. body C. width D. length

8. A. run away B. flee 　C. touch D. move

9. A. way B. means C. method D. approach

10. A. make B. do 　C. build 　D. produce

1. A 根據四個單詞的區(qū)別，“生物”應為living things。

2. D 固定搭配：avoid doing sth.意為“避免做某事”。

3. B 根據上下文意思，此處指動植物“再生”。

4. C 由謂語動詞形式可知，certain指“某些”。

5. C 根據下文得知此處指“有毒的”觸角。

6. B 指海底動植物生存的另一種方法。

7. A 這些動物有與周圍環(huán)境相同的顏色，即保護色。

8. C 所有動物對觸摸很敏感。

9. B 固定搭配，by means of 意為“用……的方法“。

10. A 固定搭配，make sound / noise意為“弄出聲音”。

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