jenny is only three years old .she is too young _______alone

来源：学生作业帮编辑：大师作文网作业帮分类：英语作业时间：2024/11/20 18:12:33

jenny is only three years old .she is too young _______alone at home
A to leave B to be leaving C to be left
D to have been left
这道题我是先看是否被动'去掉A

你的思路在做有关不定式的选择题时有不妥的地方
本题关键是看作表语的形容词与后面的不定式的关系
也就是不定式是否能反射 to leave her alone is too yong显然说不通所以不能用不定式的主动形式
所以是 she is too young _to be left___alone
答案是C
如果仅仅考虑被动关系那么下面这道题你就会做错
the book is too difficult to read .
这里的不定式必须用主动形式 to read 而不能用被动形式 to be read
因为这是不定式的反射用法 to read the book is too difficult 能说通 .
再如 the box is too heavy to carry

jenny is only three years old .she is too young _______alone Jenny is only three years old.she is too young______alone at Tony is only three years old.He is too young to d() him self my brother is only 2 years old ,he is too young for s_____ She is only three years old.She doesn't go to,so she ( )read She is o________ three years old She is only e____ years old Gina is twelve years old,but she has only had three birthday Helen is only four years old,she can‘t school.（用too...to合并为一 She is only eight years old () she knows a lot. Although she is over 40 years old ,____she looks young. How old is your ( ) sister?She is 17 years old.She is three