例2：To prepare for career in engineerin9, a student must begin planning in high school. Mathematics and science should form the core curriculum．For example，in a school where sixteen credit hours are required for high school graduation，four should be in mathematics，one each in chemistry，biology，and physics．The remaining credits should include four in English and at least three in the humanities and social sciences．The average entering freshman in engineering should have achieved at least a 2.5 grade point average on a 4.0 scale in his or her high sch001． Although deficiencies can be corrected during the first year，the student who needs additional work should expect tO spend five instead of four years completing a degree．
1．What is the average grade point that an entering freshman in engineering should have achieved in his or her high school?答案：2．5．(看文章的第五句)
2．When should a student begin planning for a career in engineering? 答案：In high sch001．(看文章的第一句)
3．In normal situations，how many years are needed for a student to complete a degree?答案：Four．(看文章最后一句)
4．How many credits are required for a high school diploma?答案：Sixteen．(看文章第三句)
5．How many credits need a student have in English? 答案：Four．(看文章第四句)
