题目内容
15.Taking a math test can be pretty stressful.Even if you know the material,you can still get the problem wrong.(36)D Therefore you'll improve your grades,as well as your math skills.Write it out
You can also check a math problem by writing everything out on paper.(37)G Writing out math problems reduces your chances of missing anything to the lowest possible level,which is a common cause of incorrect answers.
(38)A
Make sure your answers work by doing the opposite procedure of what your problem calls for,including the answer you got the first time around.In other words,you would use the opposite of this addition problem-subtraction (减法)-to determine whether your answer is the correct one.
Plug in(代入)
You may find that a variable isn't good enough or have a problem where you have to solve for a variable. (39)C This is the only real way to assure yourself that the answer you've found is correct.(40)F
If the result of a problem seems to make no sense,it indicates that the answer is incorrect.For example,if you get an answer in the millions and you know it should be in the thousands,you've likely misplaced a point.Go back through the work on your paper to make sure all of your formulas and calculations are correct.If everything looks okay,do the problem again and compare the result of the second try to what you've got on the first try.
A.Do the opposite.
B.Correct the answers.
C.Plug the variable in the equation (方程) to check it out.
D.Knowing how to go through your math test and checking your work can save you from handing in a test full of mistakes.
E.It also helps you to figure out everything after you have already finished the test.
F.Check for a reasonable answer
G.This helps you to know what information you have and what information you need to solve.
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了如何解数学题及怎样验证答案
解答 36.D.考查考生对上下文因果关系的理解能力及段落主旨的概括能力.根据上句"Taking a math test can be pretty stressful.Even if you know the material,you can still get the problem wrong."可知,知道如何通过你的数学测试,检查你的工作可以防止你交出一个充满错误的测试.故选D
37.G.考查考生对上下文顺承关系的理解能力.根据上文"You can also check a math problem by writing everything out on paper."及学生解数学题的常识性经验可知"把所有的已知条件都列出后,你就会知道该如何解题".故选G.
38.A.考查考生对标题的提炼能力.从后面的句子:Make sure your answers work by doing the opposite procedure of what your problem calls for,说明我们可以反过来做题目.选A.
39.C.考查考生对上下文顺承关系的理解能力.从前面的句子:You may find that a variable isn't good enough or have a problem where you have to solve for a variable (变量).可知是在方程式中带入变量来检查.选C.
40.F.考查考生对段落主题句的概括理解能力.根据后文If the result of a problem seems to make no sense,it indicates that the answer is incorrect可知要"检查答案的合理性;故选F.
点评 七选五阅读是完成性阅读,和完形填空很类似,不同的是一个选词,一个选句子.解题时,要注意上下文语境,充分考虑信息词(选项中和空格前后句子中相同或相近的词),选出最符合语境的句子.
_________________.( )
A. | Excuse me | B. | Have a good time | ||
C. | I'm afraid I can't | D. | It's up to you |