2021高考英语二轮专题复习专题强化练十三完形填空之说明文议论文（原卷板+答案版）

专题强化练(十三)　完形填空之说明文、议论文 A Number sense is not the ability to count.It is the ability to recognize a__1__in number. Human beings are born with this ability.__2__，experiments show that many animals are，too.For example，many birds have good number sense.If a nest has four eggs and you remove one，the bird will not__3__．However，if you remove two，the bird__4__leaves.This means that the bird knows the__5__between two and three. Another interesting experiment showed a bird's__6__ number sense.A man was trying to take a photo of a crow(乌鸦)that had a nest in a tower，but the crow always left when she saw him coming.The bird did not__7__until the man left the tower. The man had an__8__．He took another man with him to the tower.One man left and the other stayed，but they did not__9__the bird.The crow stayed away until the second man left，too.The experiment was __10__with three men and then with four men.But the crow did not return to the nest until all the men were__11__．It was not until five men went into the tower and only four left that they were__12__able to fool the crow. How good is a human's number sense? It's not very good.For example，babies about fourteen months old almost always notice if something is taken away from a__13__group.But when the number goes beyond three or four，the children are__14__fooled. It seems that number sense is something we have in common with many animals in this world，and that our human__15__is not much better than a crow's. 1．A.rise　　　　　 B．pattern C．change D．trend 2．A.Importantly B．Surprisingly C．Disappointedly D．Fortunately 3．A.survive B．care C．hatch D．notice 4．A.generally B．sincerely C．casually D．deliberately 5．A.distance B．range C．difference D．interval 6．A.amazing B．annoying C．satisfying D．disturbing 7．A.relax B．recover C．react D．return 8．A.appointment B．excuse C．idea D．explanation 9．A.fool B．hurt C．catch D．kill 10．A.reported B．repeated C．designed D．approved 11．A.confused B．gone C．tired D．drunk 12．A.gradually B．luckily C．strangely D．finally 13．A.single B．small C．local D．new 14．A.seldom B．temporarily C．merely D．often 15．A.sight B．nature C．ability D．belief B (2020·山东临沂高三检测)Most dogs have an easy life in the US.They eat，play，get attention from their__16__and sleep.But some dogs work hard.They are called guide dogs.Guide dogs help__17__people move from place to place safely. Guide dogs and their owners are a team.Guide dogs don't lead the owners，and their owners don't__18__control the guide dogs.They work together.The guide dogs don't know where the owners want to go，so they__19__the owners' instructions.The owners can't see the obstacles(障碍物) along the way，so the dogs make decisions for the__20__of the owners.Guide dogs stop at all crossroads before __21__ a street.They don't see color，so they don't know if the light is red or green.The owners decided if it is time to cross the street by listening to the soun ... ...