题目内容
3．You'd better solve thebasicproblems first．（base）分析 你最好先解决基本问题．
解答 答案：basic．problems是名词问题，前面用形容词来修饰，base是名词或动词基础，形容词是basic基础的，故答案是basic．
点评 派生词，是英语主要的构词法．这方法是借前缀或后缀之助，制造出派生词，主要有名词、形容词和动词三种．前缀以否定前缀-等为主，使延伸出来的派生词变成反义词．
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