All living things must fight to stay alive. They have to feed on something and at the same time avoid being eaten. 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 reproduce very fast and in great numbers.
Certain sea animals have defensive devices(装置) which help them to survive. The jelly fish have poisonous tentacles(触角) which are used for attack and defence.
Another method of survival which sea plants and animals use is disguise(伪装). They usually have the same color as their surroundings.
In order to stay alive, animals need to have good senses. Fishes have sharp eyes. Almost all animals are sensitive to touch. Fishes judge movements in the water by means of their lines. Fishes and other sea animals can hear well and many of them can make different types of warning sound.
【小题1】What is the greatest problem that the living things face?(no more than 10 words)
【小题2】 How many ways that animals in the sea survive are mentioned (提到)（no more than 2 words）?
【小题3】What do the jelly fish have to protect themselves from being attacked?(within 15 words)
【小题4】What does the word survive in the second paragraph mean?(no more than 6 words)
【小题5】List at least two methods of helping animals survive.(no more than 15 words)
①
② They have to live on in their own way.
网友回答
(答案→)They have to live on in their own way.
解析：
【小题1】They have to live on in their own way.
细节题。根据第一段最后一句Therefore they have to solve this big problem of staying alive in their own way.
【小题2】Four.
细节题。根据Certain sea animals have defensive devices(装置) which help them to survive.和Another method of survival which sea plants and animals use is disguise(伪装). 以及Almost all animals are sensitive to touch. 和many of them can make different types of warning sound.一共有4种不同的方法。
【小题3】They have poisonous tentacles which are used for attack and defence.
细节题。根据文章第三段最后1句The jelly fish have poisonous tentacles(触角) which are used for attack and defence.
【小题4】The word “survive” means “remain alive”.
推理题。根据本句The danger of being eaten in the sea is great. Those plants and animals that do survive usually reproduce very fast and in great numbers.可知该词是指鱼儿能幸存活下来。
【小题5】① Reproducing very fast and in great numbers ② Disguising/Certain defensive devices ③ Good senses (of animals)
文章中列举了如下的方式Those plants and animals that do survive usually reproduce very fast and in great numbers.
Certain sea animals have defensive devices(装置) which help them to survive.
Another method of survival which sea plants and animals use is disguise(伪装).
In order to stay alive, animals need to have good senses.