1.It also has surface areas that the rover can effectively explore.
2.He said in a statement that "years of study" had gone into examining the polar area the rover will explore.
上面两个句子areas后面的that是不是做从句的宾语???为啥第一个有that,第二个省略了???有什么门道?谢谢
第一个句子中that引导定语从句,the rover can effectively explore是定语从句修饰先行词areas,area是物,所以这里用that引导定语从句。这里that可以省略(当然句子选择不省略也是对的),因为先行词area在定语从句中做宾语。如果先行词在定语从句中作主语,that是不可以省略的。
第二个句子中,that依旧引导定语从句,先行词是area,在定语从句中也是做宾语。所以这里that 也是可以省略的,而且在句子中已经被省略掉了。
总之,在这两个句子中,定语从句引导词that省不省略都是对的。