问题描述：
The sea covers a greater part of the earth 's s_____than the land .It is the home of millions of living things.Animals and plants of various shapes,colour and sizes live in the sea.Do you know there is more life in the sea than on land?The animals and plants of sea are very i_____to man as a source of food .if you ever go skin-diving(轻装潜水）,a beautiful new world will m____your eyes.
In the future you will be hearing more and more about the sea.lt is one of the l_____remaining places on earth which has not been fully explored(开发）by men .
Today,more and more s____are exploring the sea.This is because the population of the earth is increasing so fast that the land alone will not be able to provide enough food for everybody.The sea is like a huge storehouse .lt contains not only food but also many o_____valuable things such as oil.The sea can provide us with a lot of fresh water in the future.
Bats are the o_____flying mammals(哺乳动物）in the world.They can not see very well .lt was long b_____,and still in many places,that all bats are blind."As blind as a bat"is often heard.Yet they have no trouble flying on the darkest night and finding their way around very well .How can bats fly and see at night?By radar(雷达）.
The bat 's radar s_____works the same as the one that ships and planes use.As a bat flies t_____the air,he makes a sound.The sound is high enough for his ears to hear .lf the sound hits a thing ,it comes back.The bats ears receive the m_____.ln this way the bat is able to know where the thing is.
Bats go out to look for food at night .ln the daytime they hang in some d_____places.Some people look on bats as bad animals.ln fact,they are useful.
帮下忙……这2篇啦……我是初一的……如果不会请不要随意回答~
晚上8：00前要的……
In the future you will be hearing more and more about the sea.lt is one of the l_____remaining places on earth which has not been fully explored(开发）by men .
Today,more and more s____are exploring the sea.This is because the population of the earth is increasing so fast that the land alone will not be able to provide enough food for everybody.The sea is like a huge storehouse .lt contains not only food but also many o_____valuable things such as oil.The sea can provide us with a lot of fresh water in the future.
Bats are the o_____flying mammals(哺乳动物）in the world.They can not see very well .lt was long b_____,and still in many places,that all bats are blind."As blind as a bat"is often heard.Yet they have no trouble flying on the darkest night and finding their way around very well .How can bats fly and see at night?By radar(雷达）.
The bat 's radar s_____works the same as the one that ships and planes use.As a bat flies t_____the air,he makes a sound.The sound is high enough for his ears to hear .lf the sound hits a thing ,it comes back.The bats ears receive the m_____.ln this way the bat is able to know where the thing is.
Bats go out to look for food at night .ln the daytime they hang in some d_____places.Some people look on bats as bad animals.ln fact,they are useful.
帮下忙……这2篇啦……我是初一的……如果不会请不要随意回答~
晚上8：00前要的……
问题解答：
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