Question

帮忙讲解两道高一英语单选题 谢谢

As a result of destroying the forests , a large _____ of desert _____ covered the land. A.number；has B.quantity；has C.number；have D.quantity；have 请问这道题为什么选B Don't leave matches or cigarettes on the table within ______of little children. A.hand B.reach C.space D.distance 这道题为什么选B There were twenty _____ in the group. A。after all B。all over C。at all D。in all 这道题为什么选D 请您帮忙稍详细的讲解一下 十分感谢

Answer 1

1.
desert
是不可数名词。a
number
of后
+可数名词而且谓语动词必定是复数；a
quantity
of
后不管加什么，谓语都要用单数。另外只有quantities
of没有quantity
of;
2.within
reach
of
sb...是个固定搭配，意为在...够得到歼腊的渣纯范围。够不着是beyond
one's
reach,或者beyond
the
reach
of
sb;
3.in
all
是总共，合计的意思；after
all:
毕竟；
all
over
遍布;
at
all
往往跟如改咐not连用，表示一点也不。
这句话可以翻译为：这组总共有20个。