训练4 议论文A(2016·威海二模)It's Nice to be Home1 I have been fortunate enough to make trips to many countries.They were wonderful adventures filled with new sights and experiences.And my wife and I have another trip in the planning stages.We're home now and have settled back into our daily routine of life. 2 I find that when I am at home，particularly for a while when we have just returned from a trip，I feel very comfortable.Perhaps it is because everything around me is familiar and the daily routine is so much the same I can move through it almost without thinking. 3 Perhaps it is because we can have meals at home instead of always being in restaurants，although it's nice to let someone else do the cooking，and because I can sleep in my own bed.There are times I think it would be nice to simply stop travelling and stay home and I'm sure I would be very comfortable if that were to happen. 4Yet I guess I am probably a restless soul because I know that after I have been home for a while I will start to think about other places we might go and other things we want to see.We will travel again and we feel fortunate to be able to do so. 5 Still，one of the best things about travelling for me is coming home.I'm very comfortable here at home even if it is difficult to say exactly why.A．I like to travel very much.B．I enjoy local food while travelling.C．I like being home，for whatever reason.D．Perhaps it is because our friends are here.E．And I enjoy my daily life at home so much.F．We want to see as much of the world as we can.G．It's lucky that my wife and I both love travelling.本文是一篇议论文。
作者很喜欢旅游，但每次旅游回到家都感到很舒服，或许因为周围的一切很熟悉，或许因为可以在家吃饭，或许因为可以睡在自己的床上。
1．A[根据本段内容并结合“I have been fortunate enough to make trips to many countries.”和“And my wife and I have another trip in the planning stages.”可知作者很喜欢旅游。
]2．E[根据第二段首句“We're home now and have settled back into our dailyroutine of life.”中的our daily routine of life可知E项正确。
]3．D[上句提到“Perhaps it is because everything around me is familiar and the daily routine is so much the same I can move through it almost without thinking.”下句提到“Perhaps it is because we can have meals at home instead of always being in restaurants.”因此过渡句中也应出现关键词perhaps it is because，故D项正确。
] 4．C[通过第二段的叙述并结合第三段首句“Yet I guess I am probably a restless soul because I know that after I have been home for a while”中的关键词have been home可知作者很喜欢在家。
]5．F[根据上两句“I will start to think about other places we might go and other things we want to see.We will travel again and we feel fortunate to be able to do so.”可知作者想尽可能多地游览世界各地。
]B(2016·西安市质量检测)Each year，many animal species die out.They join the countless species that have gone extinct(灭绝的) over the course of the earth's history and many people believe they disappear forever. 6Now some scientists are focusing on the ability to bring back extinct species.This doesn't mean the plot of Jurassic Park is going to become a reality.The researchers need DNA to clone a species. 7 Dinosaurs have been gone too long for any of their DNA to remain in fossils(化石)．But there's a very real chance that we will be able to bring back more recently extinct species. 8 In 2003，a team of Spanish and French scientists recreated the Pyrenean ibex，which had gone extinct three years' earlier.The new animal didn't survive long，but scientific advances could improve the success rate.In January，Australian scientists announced that they were on their way to bringing back the gastric brooding frog.That we can bring species back doesn't mean that we should do that.There may be much benefit of reviving(使复生) a species，but there's no way to know how it will turn out. 9 Or might it crowd out existing species? Environmentalists worry that our ability to bring species back might cut down support for the hard work of traditional conservation.10 If we can correct our mistake，why not use the chance to do that? As Stewart Brand，a businessman and environmentalist，recently said，“Humans have made a huge hole in nature.We have the ability now to repair some of that damage.”A. However，some people argue that the extinction of some animals is really our mistake.B．In addition，most people think that the extinction of some animals is really human's mistake.C．This could even include Ice Age animals like the woolly mammoth.D．However，you might need to redefine(重新定义) “forever”．E．For example，would a passenger pigeon fit into its old habitat(栖息地)?F．This could even be true to dinosaurs that have been extinct long ago.G．DNA is the chemical that carries the structure of a living thing.本文是一篇议论文，主要讲述了我们可以用克隆手段来使灭绝的动物重新回到世界上，但这并不意味着我们应该那样去做。