当括号中所给词是形容词或副词，且空格处需要的仍是形容词或副词时，要根据语境，理解句意，若该词意思不变，逻辑上讲得通，就很可能填该词的比较级(或最高级)；若需要用与该词意义相反的词逻辑才通顺的，就要在该词前加表示否定或相反意义的前缀。注意：要善于分析语境，辨别省略了than的隐性比较级。具体解题技巧如下：
第一步：分析结构，确定所给词在句子中作定语还是状语。
第二步：根据结构、语境或句子意义确定是填比较级还是最高级。
形容词作定语，形容词和副词的比较等级或最高级，词义比较等。
1.【2019·全国卷I改编】It leads to the illusion(错觉) that populations are _____ (high) than they actually are.
2.【2017·全国卷I I】The central London Railway was one of the most ______ (success) of these new lines
3.【2018·全国卷I】According to a review of evidence in a medical journal, runners live three years (long) than non-runners.
4. The water was simply the container for an act of kindness and love. Nothing could be ________(sweet)．
5. Sixteen years (early), Pahlsson had removed the diamond ring to cook a meal.
6. People certainly have a variety of reasons for going back to school but one important thing to know is, no knowledge is ________ (use)
7. The(big) the activity inequality of a country is, the higher its rate of obesity will be.
8.It’s never too early to make necessary preparations for a healthy and ______ (meaning) college experience.
9.He was very tired after doing this for a whole day, but he felt very happy since the crop did “grow”________(high)．
10.I was greatly________（astonish）that she had turned down his kind offer.
