摘 要: | 1.问:1)人教社教材SB2(下)P5 practice中有这样一句:we must do is reduce the use of energy and use natural energy.横线上应填That还是What?do,is与reduce,use怎么能连用呢?如果把is理解成整个句子的谓语,那么reduce和use为什么不用—ing形式或to do形式?2)同一册书P4还有这么一句话:As a result,it appeared to the scientists on earth that the stars hadmoved.注释上把on earth理解成“地球上”,若这样理解,那它为什么不加the?不是sun,moon,earth,sea等词前面要用the吗?on earth应该是“究竟”的意思吧?(…
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