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2．present n．
[考点点拨]present作名词，意为“现在，目前”。At present＝at the moment＝right now目前；其还可作形 容词，your present job你目前的工作；present用作名词，还可表示“礼物”，a birthday present -份生日礼物。如：
He is washing his clothes at present.
现在他正在洗衣服。
3．northern adj。
[考点点拨] 方位词：north-northern; west-western; south-southern; east-eastern。如：
in the north of China ＝ in the northern part of China
在中国北部
East China华东；North China华北
The northern part of the city used to be sparsely populated, but has now become a cultural centre.
城北过去人口稀少，但现在成了文化中心。
4．pollution n．
[考点点拨] 常见短语：air pollution空气污染；noise pollution噪音污染；light pollution光污染。如：
I could hardly believe she had made a video about water pollution by herself.
我几乎不能相信她靠自己制作了一份有关水污染的录像。
pollute作动词，意为“污染”，pollute the air污染空气。
5．interview n．& vt．
[考点点拨] interview作名词，意为“采访，会见”，还可作动词，意为“采访，面试”；interviewer作名词，意为“采访者，面试官”。如：
interview sb．＝ have an interview with sb.采访某人
Sally became a member of the company after the job interview.
萨莉在求职面试后成为了这家公司的一员。
I interviewed Mr Zhang yesterday afternoon
＝I had an interview with Mr Zhang yesterday afternoon.
昨天下午我采访了张先生。
6．return v.
[考点点拨] return作“返回”讲时是不及物动词，相当于come/get back: 作“归还”讲时是及物动词，相当于giveback。return to someplace回到某处；return sth to sb. ＝give sth．back to sb.把某物还给某人。return本身含有back的意思，不能再和back连用。如：
他借了我的手机，还没还给我。
正：He borrowed my mobile phone and hasn't returned it to me.
误：He borrowed my mobile phone and hasn't returned it back to me.
Step3 复习核心句子