根据提示，写出完整的单词。

Many animals use some kind of “ language” . They use signals that have meanings .For ex - ample , when a bee has found some food，it goes b_1__ to its home . It is easy for a bee to t__2__ the other bees where the food is by speaking to them , but it can do a little dancing . This tells the bees where the food is and how f__3__it is .

Some animals show how they feel by m__4___  sounds . It is not d__5___  to tell if a dog is angry because it barks（吠）. Birds make several different sounds and e_6___  has its own meaning . Sometimes we humans make sounds in the same w __7__. We make sounds like “Oh!” or “Ouch !” to show how we feel about something or when we d__8__ something on our feet.

We humans also have languages. We have words. These words have the m__8___ of things, actions , feelings or ideas . We are able to give each other messages to tell w__10__ we think or how we feel . By writing down words , we can remember what has happened or s__11___ messages to people far away.

Languages can live and die . If a language isn’t u__12__by people , it is called a d__13__ language. This language cannot  live and grow because no one s_14__it. Latin is an example of a dead l__15__.

A living language , of course , is often s_16__ by people today . It grows and c_17__ with time .

New words are created（创造）, and some old words have n 18  meanings . Some words , or their meanings, may die and only be found in the old b_19__. English and Chinese are b__20__ examples of a living language.

请根据所给首字母或中文提示，写出单词在句中的正确形式。每空只能填一词，将单词完整地写在答题卡上。（每小题1分，共10分）

81. We should protect the animals in d _________.

82. Susan was so careless that she made many m_________ in the test.

83. Can you give me some a_________? My English is so poor.

84. Singing English songs can i_________ our English.

85. My son likes eating hamburgers. He says they are very d_________.  

86. It’s _________ （礼貌的） to wait for everyone to put some food on their plates.

87. The _________（气温）will fall below zero.

88. They didn't have _________（足够的）food to eat and they felt hungry.

89. Plants and animals can't live _________（没有）air or water.

90. Don’t be _________（紧张的）. It’s easy.

请认真阅读下面短文，并根据各题所给首字母的提示，写出一个合适的英语单词完整、正确的形式，使短文通顺。

Most people love animals. We think that animals are good 1. f_________ of humans. But, in fact，a 1arge number of animals，especially wild ones，are in 2.d_________ now mainly because of humans. If we do not 3.t_________ action now，we will have no animals soon.

People are destroying animals’ natural habitat by cutting 4. d________ trees or building houses. At the same time, many of the animals’ living5.a_________ are becoming farmland as we have to feed a 1arger population of the world. Besides，people hunt animals for their fur or other useful things. As a result of the pollution that humans have caused, some animals cannot6. l_________ a normal life any more.

We must try our best to 7.p_________ animals right now. Remember that it is everyone’s 8.d_________ to do so. We should write to newspapers and magazines and 9. t_________ everyone about these problems. We should also immediately 10. d__________ something to help the endangered animals.