题目内容
7.-Waste paper shouldn't be thrown everywhere.It's our duty our city clean.-If everybody tries their best,our city will be more beautiful.( )
| A. | keeping | B. | to keep | C. | letting | D. | making |
分析 -废纸不应该仍地到处都是.保持城市干净是我们的责任.-如果每个人都尽他们最大的能力,那么我们的城市将会更美丽.
解答 正确答案:B.根据题干可知保持城市干净是我们的责任,句子it作形式主语,真正的主语应是动词不定式,为了保持句子平衡而将其后置,选择B.It is one's duty to do sth.表示做某事是某人的责任.
点评 本题考查动词不定式,需掌握其基本用法,根据句子成分及题干进行选择.
练习册系列答案
相关题目
17.---This kind of game is exciting.
---Yes,but it's dangerous.One can't do it ________ he or she has got some training.( )
---Yes,but it's dangerous.One can't do it ________ he or she has got some training.( )
| A. | if | B. | after | C. | when | D. | unless |
18.-Will you please teach me how to surf the Internet?I want to use it.
-________( )
-________( )
| A. | With pleasure. | B. | Good luck. | ||
| C. | I agree with you. | D. | Thank you. |
15.-Can you tell me _______ to travel to Hawaii?
-About two hours by air.( )
-About two hours by air.( )
| A. | how far it takes | B. | how much time you cost | ||
| C. | how long it takes | D. | how long I spend |
2.He used to _____ games on the Internet,but now he gets used to ______ a walk after supper.( )
| A. | play; taking | B. | playing; take | C. | play; take | D. | playing; taking |
12.-The football match is coming.I'm not sure if it will rain tomorrow.
-If it ,we'll put off the match.( )
-If it ,we'll put off the match.( )
| A. | will rain | B. | is raining | C. | rains | D. | rain |
16.-How do you study your English test?
-I study ______ working with a group.( )
-I study ______ working with a group.( )
| A. | by; for | B. | for; on | C. | with; by | D. | for; by |
13.They make the little boy______ the room every day.( )
| A. | cleans | B. | clean | C. | to clean | D. | cleaning |