the indefinite pronoun and adverb
somebody, someone, something, somewhere
一般情况下用于肯定句
anybody, anyone, anything, anywhere
一般情况下用于否定句和疑问句
none, nobody, nothing, nowhere
• 3 None of us likes pollution. 没人喜欢污染。 • None 没有一个, 毫无 • none 指三者或三者以上的“没有, 都不”,既 可指“人”也可指“物”,常与of连用,既可修 饰可数名词,也可修饰不可数名词。 • none和no one 的区别; • No one 1)不与of连用;2)谓语动词用单数;3) 只能指人,但不具体指什么人;4)一般用来回答 who,及含anyone, anybody引起的疑问句。 • None 1)可与of连用;2)谓语动词用单或复数; 3)具体指什么人或物;4)一般用来回答how many +n, how much +n及含any +n引起的疑 问句。
转换成,变成 沙漠
e.g. A lot of rich land has changed into desert because people have cut down too many trees.
sandstorms
come into being
n. 沙尘暴
• • • •
1 change into... 变成……。 e.g. Water has changed into steam. 水变成了蒸气。 2 stop/prevent sb./sth. (from) doing sth. 阻止某 人/某物做某事,from可以省略。 • e.g. The heavy snow stopped/prevented the visitors (from) leaving the top of the mountain. • 大雪使游人不得不停留在山顶上。