根据短文内容,在空白处填入一个适当的单词或括号内单词的正确形式。(每空1分)Have you even seen fireflies(萤火虫)?Fireflies are small insects. You can't see them{#blank#}1{#/blank#} any season except summer. The lights made by fireflies are probably one of the most magical things to see on a summer night. Do you wonder{#blank#}2{#/blank#} fireflies make this light?
There is a part that can make light under a firefly's stomach. Fireflies take in air and{#blank#}3{#/blank#}
(useful) it to produce light with special cells (细胞).Different kinds have {#blank#}4{#/blank#}(they) own special flash patterns, just like humans have different languages. They use these flash patterns to find other members of their group.
Fireflies {#blank#}5{#/blank#}(main) use the light to get friends' attention. The males (雄性) fly around while{#blank#}6{#/blank#}(turn) their lights on and off, hoping to get the attention of a female (雌性).They try to flash very quickly, because the {#blank#}7{#/blank#}(fast) males flash, the more attention they can get from females. Fireflies also use the light to make their {#blank#}8{#/blank#}(enemy) scared.
If you haven't seen many fireflies lately, you are not alone.{#blank#}9{#/blank#} number of fireflies may be dropping because of some reasons, such as light pollution and chemical medicine use. Another important reason is that fireflies' living places are destroyed by humans.{#blank#}10{#/blank#}(luck), Chinese scientists recently found three new firefly kinds in Yunnan. Yunnan might have the right environment for these magical insects to live in.