专题十三 构词法1
(2019·全国卷Ⅰ，62)It is difficult to figure out a global population of polar bears as much of the range has been ________ (poor) studied
答案：poorly 修饰谓语动词 has been studied 应用形容词 poor 的副词形式 poorly
2．(2018·全国卷Ⅰ，68)To avoid knee pain, you can run on soft surfaces, do exercises to ________ (strength) your leg muscles ( 肌肉), avoid hills and get good running shoes
答案：strengthen 在不定式符号 to 后面用动词原形
3．(2018·浙江高考，62)The obvious one is money; eating out once or twice a week may be ________ (afford) but doing this most days adds up
答案：affordable be 动词后接形容词作表语
affordable “付得起的”
4．(2018·全国卷Ⅰ，43)And, even if I weren't ________ (excite) enough about free credits, news about our instructor was appealing enough to me
答案：excited be 动词后面应用形容词，此处修饰人，故填 excited
5．(2018·全国卷Ⅱ，55)________ (fortunate), aft
