Students are not allowed to read such books___are harmful to their body and mind.上题选项：A.as B.which C.that D.because whichAfter several days of marching through the tropical forest,the group of soldiers reached___used to be wasteland.A.there B.where C.what D.that第一题为什么不选that?
问题描述：
Students are not allowed to read such books___are harmful to their body and mind.
上题选项：
A.as B.which C.that D.because which
After several days of marching through the tropical forest,the group of soldiers reached___used to be wasteland.
A.there B.where C.what D.that
第一题为什么不选that?
答
B,B
答
第一题：选A
这一题是属于定语从句中的一种，此处用as因为前面有such, as所起的作用和that一样的，是关系代词，语法规则：定语从句中，当先行词有such/the same修饰时，关系词用as. 还有一种情况用as，就是我们常见的一般放于句首，as we know/ as is known to everyone,正如...一样。
第二题：选C
此句主句中，reach后面缺少宾语，宾语从句中，缺少主语，所以引导词需充当reach宾语和宾语从句中的主语，引导词中，可做双重成分的，只有what
答
b
答
C/B
答
这些都是关于定语从句吧.有点记不大清了
应该是,第一个选C,that.这个定语是形容books,但books前有such形容,所以固定定语从句这个时候就只能用that.
第二个应该选B吧.
多做点关于定语从句的练习就好了.