Question

英语选择题（高中）

1The law doesn't set the youngest age __ children can be left alone.
A for which B at which C which D that
2Many people believed that __ was no better day than October 10,2010 for weddings.
A such B so C there D it
3The Shanghai World Expo, the first event of its type __ in China,drew to a close after about 73 million vistors.
A to have held B to be held C holding D being held
请给解释

Answer 1

第一题答案 B 这是定语从句，因为which 在这里指代age, children can be left alone at the age of + 年龄，意思是孩子在。。。岁时可以单独留在家里。
第二题答案是 C 意思是没有比2010年10月10日的更好的结婚的日子了。there be表示存在。
第三题答案C drew to a close 意思是进入尾声，说明还没有结束，所以选择being held，做后置定语，意思是正在被举办，AB两个选项没有表示出被动的意思，B是即将举办，所以D是最佳选项。

Answer 2

1.B。at the age of... age要与at 搭配
2.C There be 句型
3.D 非谓语动词充当后置定语，the first events of its type 与hold 之间是被动关系，B选项是将要被举行，D选项是正在被举行，根据句意，应选D

Answer 3

B 定语从句at the age
C there be表示存在。
B the first/second (n.) +不定式　作后置定语，又因为是被动意思，所以B最佳

Answer 4

1.B at the age of
2.C there is 句型
3.D 被举行，被动态，draw to close 将要结束，说明正在进行

Answer 5

人家说了要解释的好不好！
不过我懒得打，
bcb