第19练 状语从句(2)＋地球与宇宙奥秘探索 Ⅰ.单句语法填空 1． our manager objects to Tom’s joining the club，we shall accept him as a member. 2．Artemisinin is such a crucial new medicine for malaria without it so many people would die of malaria a year. 3．As a general rule，all forms of activity lead to boredom they are performed on a routine basis. 4． you admit or not，you’ve got to accept that your kids have grown up. 5．Scientist he is，he is still as modest as before，which always moves all the people who know him. 6．No matter serious a problem you may have，you should gather your courage to face the challenge. 7． these measures are not effective forever，they are vital for now. 8．He goes to work by subway every day， many businessmen who live in downtown do. 9．There is no doubt that the relationship between family members is no longer as close it used to be. 10．It’s easy to grow it can tolerate unfavorable conditions and partial shade，but it grows best in full sun. Ⅱ.短文语法填空 Today，many people are worried about endangered species.But isn’t it just normal for some animals to die out The situation today is different from 1. of the past.In the past，animals died out over a long period of time.2. animals died out in the past，it was usually because of the weather or other natural causes. 3． it is totally different today，the fact is that millions of species are still in great danger.So many species are being killed in a short time 4. even the fittest can’t survive，as a consequence，there won’t be enough species to choose from.5. there aren’t enough animals and plants，evolution cannot function and nature will get 6. (bad) instead of getting better. Many of the species 7. (disappear) on earth are unknown and few people even know that they are dying out.These animals and plants started to live on earth long 8. we did and we have no right to kill them.We may also need these species in the future.We must try to keep the endangered species alive.9. we allow these species to die out，we are in fact becoming endangered 10. (our)． Ⅲ.阅读理解 A Scientists and engineers are preparing for possible travel into interstellar(星际的) space，the area in between stars，in the distant future.A new report examines the possible problem of changes in language on long space trips.Two American researchers have explored one possible problem with such travel.They considered the possibility that changes in human language could develop overtime and lead to major communication problems with people on Earth. The language experts are professors Andrew McKenzie from the University of Kansas，and Jeffrey Punske of Southern Illinois University.The two recently published a paper，which considers very long trips necessary to reach interstellar space，estimated to be about 18 billion kilometers from Earth.It also examines the possibility of future colonization(殖民地的开拓) of distant stars. Languages naturally change as communities grow more isolated from ... ...
