第五点：数字关系常考
文章中的数字，表明时间、特征量间的数量关系，对于说明事物特征具有文字所不能及的作用。
例文：
In the United States Government, the laws are made by the Congress, which has the House of Representatives and the Senate. They are almost equal in power. The House of Representatives is larger than the Senate whose 100 members serve for six years. The 435 members of the House are elected every two years, and the number from each state is determined by the population of the state.
1. The House of Representatives has more members than the Senate.
A. 100 B. 435
C. 535 D. 335
点评：由原文The House of Representatives is larger than the Senate whose 100 members serve for six years. The 435 members of the House are elected every two years可知答案为D。文中出现的数字为100和435，运用了减法。数字题往往需运用简单的四则运数，但是绝对不可能出现开平方，求微分等高级的数学运数。