题目内容
19．Water shouldn't ________to waste．（ ）| A． | allow | B． | be allowing | C． | be allowed | D． | to allow |
分析 水不应该允许被浪费．
解答 正确答案：C．根据句意水不应该被浪费，其中主语water和谓语allow是被动关系，含情态动词被动语态的结构是"情态动词+be+动词过去分词"，故选择C．be allowed to do sth．表示不允许做某事．故选C
点评 本题考查含情态动词的被动语态，根据主谓关系确定语态，并记住含情态动词被动的结构即可作出选择．
练习册系列答案
相关题目
9．-Go and ask Mr．Green for help．
-But I don't know ________．（ ）
-But I don't know ________．（ ）
| A． | where does he live | B． | where he lives | ||
| C． | where is he living | D． | where he lived |
7．---Excuse me，could you tell me how to use the camera？
---I'm sorry，but you can go and ask Carl．He _____ know how to use it．（ ）
---I'm sorry，but you can go and ask Carl．He _____ know how to use it．（ ）
| A． | can | B． | need | C． | must | D． | may |
14．Now children，let's look at the _______picture in Lesson ______（ ）
| A． | one；Five | B． | one； fifth | C． | first；Fifth | D． | first；Five |
4．--There is no juice in the fridge，_____？
--No，we'd better go and buy some．（ ）
--No，we'd better go and buy some．（ ）
| A． | is there | B． | isn't there | C． | is it | D． | isn't it |
11．---Trees can prevent the water from _________ the earth away．
---That's right．（ ）
---That's right．（ ）
| A． | washing | B． | blowing | C． | turning |
9．---Where is your grandpa now？
---He ______ newspaper in the living room．（ ）
---He ______ newspaper in the living room．（ ）
| A． | read | B． | is reading | C． | was reading | D． | reads |