外研版英语八年级上册《Arnwick was a city with 200.000 people》Population PPT课件(第2课时)
展开
外研版八年级英语上册《Arnwick was a city with 200.000 people》Population PPT课件(第2课时),共16页。
►pollution此处用作不可数名词,意为“污染;污染物”。
eg:air pollution空气污染
noise pollution噪音污染
There's a lot of pollution in the air here.这里的空气含有大量的污染物。
【拓展】pollution的动词形式是pollute,意为“污染;弄脏”,其过去式为polluted,现在分词为polluting。
eg:All these waste products are polluting the river.所有这些废物正在污染着这条河。
►public形容词,意为“公共的;公众的”。in public places意为“在公共场合”,相当于in public。
eg:It's better to keep your voice down in public.在公共场合最好还是小点儿声。
【拓展】public还可作名词,意为“公众”。in public意为“当众;公开地;公然地”;the public意为“大众;民众”,作主语时,谓语动词既可用单数,也可用复数。
eg:It's impolite to talk loudly in public.在公共场合大声喧哗是不礼貌的。
The public wants/want to know the truth.民众想了解真相。
►service作名词,意为“服务”。其动词是serve,意为“为……服务”。
eg:People hope to have free medical service.人们希望享受免费医疗服务。
Science serves the people.科学为人民服务。
►重点词组归纳
move to搬到……
in fact事实上
all over the world世界各地
have to不得不
... ... ...
关键词:Arnwick was a city with 200.000 people PPT课件免费下载,.PPT格式;