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【题目】 Jellyfish (水母) mainly live in oceans. Some can also live in fresh water. Unlike real fish, jellyfish do not have backbones. In 1, they don’t have any bones at all. They don’t have brains, eyes, ears and hearts, either. However, Jellyfish do 2 (good) without these body parts. Jellyfish live in every ocean in the world. There are hundreds of kinds of jellyfish. The number of jellyfish keeps 3 (increase).

Unlike real fish, jellyfish do not have fins or tails to help them swim. Instead, they open and close their bodies, getting water in and out. When they push water out, they move upward. Jellyfish can sense light and smell. They can find fish and plants to eat. They catch food with their tentacles(触手). Jellyfish can be dangerous because they sting (). Some jellyfish stings hurt a little. Some hurt a lot. Some can kill. If you go swimming in a sea, 4 (be) careful of jellyfish. Get out of the water if you see them. If you see a jellyfish on the sand, don' t pick it up. If you get stung by a jellyfish, go to the nearest hospital quickly. There are many kinds of jellyfish. The smallest jellyfish are the peculiar creeping jellyfish, which are Just 0. 5mm to a few mm across. The5 (large) jellyfish are the lions mane jellyfish, whose body can be 2m across, with much longer tentacles.

【答案】

1fact

2well

3increasing

4be

5largest

【解析】

本文是说明文。介绍了一种海洋生物——水母。

1句意:事实上,他们根本没有任何骨头。

in fact “事实上”,符合题意。故答案为fact

2句意:然而水母没有那些身体部位也活得很好。

do为谓语动词,副词修饰动词,故答案为well

3句意:水母的数量一直在增加。

keep doing sth. “一直做某事”,故答案为increasing

4句意:如果你去一片海域游泳,要小心水母。

此处是祈使句,动词原形开头,且if引导的条件状语从句,遵循“主祈从现”的原则。故答案为be

5句意:最大的水母是狮子鬃水母……

根据前面出现的“The smallest jellyfish”,可推出后面介绍的是相反的类型。故答案为largest

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