题目
题型:不详难度:来源:
Taking a math test can be pretty stressful. Even if you know the material, you can still get the problem wrong. Knowing how to go through your math test and check your work can save you from handing in a test full of mistakes that can be avoided. 小题1:
Write it out
You can also check a math problem by writing everything out on paper. 小题2: Writing out math problems reduces your chances of missing anything to the lowest possible level, which is a common cause of incorrect answers.
小题3:
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 or not your answer is the correct one.
Plugging in
You may find that a variable(变量) isn’t good enough or have a problem where you have to solve for a variable. 小题4: This is the only real way to assure yourself that the answer you’ve found is correct.
Check for a reasonable answer
小题5: 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.Therefore you’ll improve your grades, as well as your math skills. |
F. If the result of a problem seems to make no sense, it indicates that the answer is incorrect.
G. This helps you to know what information you have and what information you need to solve.
答案
小题1:D
小题2:G
小题3:A
小题4:C
小题5:F
解析
试题分析:本文为说明文。该文就如何解数学题及怎样验证答案进行了详述。
小题1: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“Knowing how to go through your math test and check your work can save you from handing in a test full of mistakes that can be avoided.”可知,此处应是知道了如何解题及验证答案有助于提高你的成绩和解题技巧。故选D
小题2: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。
小题3:A考查考生对标题的提炼能力。根据该段内容和关键词 opposite 可知A项与其吻合。
小题4:C考查考生对上下文顺承关系的理解能力。根据该段主题Plug in和该段中的variable一词可知C为正确选项。
小题5:F考查考生对段落主题句的概括理解能力。该段主题“检查答案的合理性”,和F项中的“make sense”意思一致。
核心考点
试题【根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。Taking a math test can be pretty stress】;主要考察你对数词等知识点的理解。[详细]
举一反三
A young man, while traveling through a desert, came across a spring of clear water. 小题1:___water was sweet. He filled his leather container so that he could bring some back to an elder 小题2:__ had been his teacher. After a four-day journey, the young man 小题3: ( present ) the water to the old man. His teacher took a deep drink, smiled 小题4: ( warm ), and thanked his student very much for the sweet water. The young man went home 小题5: a happy heart.
After the student left, the teacher let 小题6: student taste the water. He spit it out, __小题7:___(say) it was awful. Apparently, it was no longer fresh because of the old leather container. He asked his teacher, "Sir, the water was awful. Why did you pretend to like ____小题8:__ ?" The teacher replied, " You tasted the water. I tasted the girl. The water was simply the container for an act of kindness and love. Nothing could be 小题9:__ (sweet). "
We understand this lesson best 小题10: we receive gifts of love from children. Whether it is a cheap pipe or a diamond necklace, the proper response is appreciation. We love the idea within the gift rather than the thing.
A.put up | B.show up | C.pick up | D.set up |
[1] Of the fruits of the year I give my vote to the orange. In the first place it is available if not in actual fact, at least in the greengrocer’s shop. On the days when dessert is a name given to a handful of chocolates and a little preserved ginger, then the orange, however sour, comes nobly to the rescue; and on those other days of plenty when cherries and strawberries riot together upon the table, the orange, sweeter than ever ,is still there to hold its own. Bread and butter, beef and mutton, eggs and bacon, are not more necessary to an ordered existence than the orange.
[2] It is well known that the commonest fruit should be also the best. Of the virtues of the orange I have no room fully to speak. It has properties of health giving. It is clean, for whoever handles it, he doesn’t eat it directly but handles its outer covering, its top coat, which is left in the hall. It is round, and forms an excellent substitute with the young for a cricket ball. But all this would count nothing had not the orange such delightful qualities of taste. I dare not let myself go upon this subject. I am a slave to its sweetness.
[3] Yet with the orange we go live year in and year out. That speaks well for the orange. The fact is that there is an honesty about the orange which appeals to all of us. If it is going to be bad and it begins to go bad from the outside, not from . How many an innocent-looking apple is harboring a worm in the bud. But the orange has no secret faults. Its outside is a mirror of its inside, and if you are quick you can tell the shop man so before he slips it into the bag.
小题1:What’s the main idea of this passage? (no more than seven words.)
小题2:List at least two virtues of the orange? (no more than six words.)
小题3:Fill in the blank in Paragraph 3 with proper words? (no more than two words.)
小题4:Why is the orange clean? (no more than seven words.)
小题5:What does the word “it” (Line 2 , Paragraph 3)probably refer to?(no more than two words.)
A.stopped | B.defeated | C.beat | D.failed |
[1] Have you ever had the wish to live another 100 years or more? Experts say that scientific advances will some day enable us to live tens of years longer than what is now seen as the natural limit of the human life span.
[2] “I guess we are knocking at the door of living longer,” said Michael Zey, a Montclair State University business professor and author of two books on the future. "I think by 2075 we will _________________ and that’s a conservative estimate (保守的估计)."
[3]At the conference in San Francisco, Donald Louris, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology (纳米技术) make it likely that humans will live in the future beyond what has been possible in the past. "There is a great push so that people can live from 120 to 180 years," he said.
[4]However, many scientists who specialize in ageing are doubtful about it and say the human body is just not designed to live past about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.
[5]Scientists also differ on what kind of life the super aged might live. "It remains to be seen if you pass 120, you know; could you be healthy enough to have a good quality of life?" said Leonard Poon, director of the University of Georgia Gerontology Centre. "At present people who could get to that point are not in good health at all."
小题1: What is the main idea of the passage? (no more than 10 words)
_____________________________________________________________________
小题2: Please fill in the blanks in the second paragraph with proper words. (no more than 5 words)
____________________________________________________________________
小题3: According to Donald Louris, what will enable humans to live longer? (no more than 8 words)
_____________________________________________________________________
小题4: What does the word “it” (Line1,Paragraph4)probably refer to? (no more than 10 words)
_____________________________________________________________________
小题5: What did Leonard Poon worry about? (no more than 15 words)
______________________________________________________________________
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