姆的。 10) 用于表示乐器的名词前。如:
My brother doesn’t like playing the piano.
我哥哥不喜欢弹钢琴。
零冠词
零冠词是指名词前面没有不定冠词、定冠 词,也没有其他限定词的现象。
在如下几种情况中,常用零冠词:
1)在表示类别的不可数名词或复数可数名词前。 如: It is necessary to drink water after you do exercise. 运动后喝水是必要的。
However, there are also problems: heavy traffic, limited resources (有限的资源),environmental and air pollution. For example, the water in Beijing only meets one-third of the city’s needs, Economic Information Daily reported. Beijing has to get water from other cities. PM2.5 pollution is also a big problem for Beijing and many northern cities.
Social problems
pollution
to--- to find jobs
cause a lot of problems
It’s clear that---need---. ---need todo
be….c.rowed, a lot of traffic , pollution
water(clean water),noise,air(fresh air) as well as rubbish