题目内容
3.Many kinds of plants and animals are extinct (灭绝).The same thing ________ around the world.( )| A. | happen | B. | happened | C. | is happening | D. | happens |
分析 各种各样的动植物在灭绝.全世界正发生着相同的事情.
解答 答案:C.
根据Many kinds of plants and animals are extinct (灭绝).可知各种各样的动植物在灭绝,这里叙述的应该是现在的情况,由此可以判断下面句子的时态应该用现在进行时,表示正在进行的动作.构成:am/is/are+Ving.故选C.
点评 考查时态,英语中时态包括一般现在时态,现在进行时态,一般过去时态,一般将来时态,现在完成时态等,好结合所给时间状语,认真分析选择正确时态.
练习册系列答案
相关题目
14.If you travel to some towns in Tailand,you'll be lucky enough to be served by guides-monkeys.The monkeys are always ready to help you.When you are (31)C,you only have to point at your own stomach and they will show you to a restaurant.(32)B you are tired,put your hands behind your head and the monkeys will take you to a (33)D.You don't feel(34)A when they put their hands in front of you after they have (35)A you.They just hope you can give them a little money as a tip.After you have given them the money,they'll wave their hands to say (36)C.
Believe it or not,these moneys are graduates of the School for Monkeys in Tailand,where they were (37)B for one year.These monkey (38)A are not the only ones in the world.Some are now being trained as (39)D in an American medical college.These moneys are expected to (40)B patients in hospital after they graduated from the school.
Believe it or not,these moneys are graduates of the School for Monkeys in Tailand,where they were (37)B for one year.These monkey (38)A are not the only ones in the world.Some are now being trained as (39)D in an American medical college.These moneys are expected to (40)B patients in hospital after they graduated from the school.
| 31.A.thirsty | B.full | C.hungry | D.sad |
| 32.A.Because | B.If | C.Though | D.Before |
| 33.A.restaurant | B.hospital | C.school | D.hotel |
| 34.A.surprised | B.lonely | C.glad | D.worried |
| 35.A.helped | B.fed | C.caught | D.watched |
| 36.A.wish | B.luck | C.good-bye | D.hello |
| 37.A.told | B.trained | C.closed | D.learned |
| 38.A.students | B.teachers | C.doctors | D.kings |
| 39.A.animals | B.soldiers | C.guides | D.nurses |
| 40.A.look for | B.look after | C.look at | D.take care |
11.Mary is ______ than the other girls.( )
| A. | outgoing | B. | more outgoing | C. | much outgoing | D. | very outgoing |
18.I used to_____my dream.But now I get used to_____doing everything.I think I'll be successful one day.( )
| A. | give up,keeping | B. | giving up,keeping | ||
| C. | giving up,keep | D. | give up,keep |