Question

阅读下面短文，根据上下文填入适当的词语，或使用括号中的词语的适当形式填空。

　　Why did the chicken go 　　1　　 the road？To get to the other side．

　　Most people know this joke．But recently, some people 　　2　　(be)much more concerned with how the grizzly bear and mountain lion can cross the road．

　　Millions of animals die each year 　　3　　 U．S．roads, the Federal Highway Administration reports．In fact, only about 80 ocelots, 　　4　　 endangered wild cat, exist in the U．S．today．The main reason？Roadkill．

　　“Ecopassages”may help animals cross the road without 　　5　　(hit)by cars．They are paths both over and under roads．“These ecopassages can be extremely useful, so that wildlife can avoid human conflicts,”said Jodi Hilty of the Wildlife Conservation Society．

　　　　6　　 do animals actually use the ecopassages？The answer is yes．Paul Beier of Northern Arizona University found foot marks left by mountain lions on an ecopassage that went under a highway, 　　7　　 showed that the lion used the passage．

　　Builders of some ecopassages try to make them look like a 　　8　　 part of an area 　　9　　 planting trees on and around them．Animals seem to be catching on．Animals 　　10　　 salamanders and grizzly bears are using the bridges and underpasses．

　　The next time you visit a park or drive through an area with a lot of wildlife, look around．You might see an animal overpass！

Answer 1

答案：across,have been,on,an,being hit,But,which,natural,by,like