:九年级英语上册Unit2SavingtheEarth词句精讲精练(附答案)
Unit 2 Saving the Earth
词句精讲精练
词汇精讲
1. pollute
pollute为及物动词,意为“污染,弄脏”;pollution为pollute的名词形式,意为“污染”,是不可数名词。例如:
We should not pollute our rivers with waste. 我们不应让废弃物污染我们的河川。
Pollution is a big problem. 污染是个大问题。
【拓展】含pollution的习惯用语:
air pollution 空气污染
noise pollution 噪音污染
2. although
although的意思相当于though,意为“尽管,虽然”,用来引导让步状语从句。它所引导的从句不能与并列连词but; and; so等连用,但可以和yet; still等词连用。例如:
Although he lives alone, he doesn’t feel lonely.= He lives alone, but he doesn’t feel lonely.
虽然他一个人住,但他并不感到孤独。
There is air all around us, although we cannot see it.
虽然我们看不见空气,但空气却存在于我们的周围。
【拓展】although与though的辨析:
(1) 用作连词,表示“虽然”,二者可以互换使用,但although比though更为正式。例如:
Though/Although it was raining, we still went there. 虽然下着雨,但我们还是去了那里。
(2) although一般不用作副词,而though可用作副词,且一般放在句末(不放在句首),意为“可是,不过”。例如:
It’s hard work; I enjoy it, though. 工作很辛苦,可是我很喜欢。
We all tried our best. We lost the game, though. 我们都尽力最大努力,但我们
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