阅读理解中不可避免地会遇到一些生词(有些是熟词生义)，疑难语句。遇到这些问题，我们可用下面几种方法解决：
技巧1：根据同义词或反义词来判断
如：Tom is lazy but his brother is industrious.
该句中but表示转折，就暗示了lazy和industrious是一对反义词，由此可知industrious意为“刻苦的、勤奋的”。
技巧2：根据定义和释义来推测
如：She is studying glaucoma，a kind of disease on the eyes.
我们可能猜不出glaucoma的确切词义，但通过后面的解释可知道glaucoma(青光眼)是一种眼睛疾病。
技巧3：根据常识来推测
如：Water usually boils at 100 centigrade.
众所周知，水的沸点是100摄氏度，由此不难判断出centigrade的意思是“摄氏度”。
技巧4：运用构词法进行猜测
如：The colors of Hawaii in summer are unforgettable.
forget意为“忘记”，un为否定前缀，因此unforgettable就是“令人难忘”之意。
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Life on Mars will be better than that on Earthin many ways. People will have more space. Living in a large building with only 10 bedrooms ishighly possible. Many people believe that robotwill do most of our work, so we have more timefor our hobbies.
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【问题】 Life on Mars will be better than life on the earth because .
A. only a few people will live there
B. there will be more space and less work to do
C. there will be much delicious food
D. all students don't need to do any homework
【解析】由句子“People will have more space”和“robot will do most of our work”判断：火星上的生活比地球上的生活要美好，因为人们的工作量少，居住空间大，故本题答案为B。