2013年5月gre考試備考:gre數(shù)學(xué)易錯題盤點

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     雖然新GRE數(shù)學(xué)是我們的強(qiáng)項,但是也不能疏忽大意,不僅不能輕敵,還要更加細(xì)心,不要被這些易錯題蒙蔽雙眼。大家在備考新GRE數(shù)學(xué)考試時可以根據(jù)以下所提到的易錯題型為自己查漏補缺。
    1,l1, l2 and l3 are three lines in space
    The number of points at The number of points at
    which lines l1 and l2 intersect which lines l2 and l3 intersect
    1.三條任意直線,L1和L2的交點的個數(shù)與L2和L3的交點的個數(shù)沒關(guān)。
    2. The number of 1/4-inch lengths in 1
    a 4-inch length
    2,是問4英尺中有多少個1/4英尺,應(yīng)該是16個,所以是A
    3. The maximun number of solid cubes 4
    having edges of length 1/2 meter that
    can be placed inside a cubical box
    having inside edges of length 1 meter
    3邊長為1的立方體里最多能放下幾個邊長為1/2的立方體,當(dāng)然是8個咯
    4. Cube C has volume 8 cubic centimeters
    The area of one of the faces of cube C 3 square centimeters
    4立方體體積是8,那一個面的面積當(dāng)然是4咯
    5. Ms.Smith got an 8 percent cost-of-living raise of $20 per week
    Ms.Smith's new weekly salary $260
    5 x*0.08=20,那x+20=270>260
    6. On a certain number live, if -7 is a distance of 4 from n and 7 is a distance of 18
    from n then n=
    A.25 B.11 C.3 D.-3 E-11
    6應(yīng)該是-11
    7. For all real numbers a and b. if a·b=a(a+b), then a·(a·b)=
    A. a2+ab B a2+ab+a C a2+a+b D a3+a2b E a3+a2b+a2
    注:a2表示a平方,a3表示a立方
    7新定義的運算a·b=a(a+b), 那a·(a·b)=a·(aa+ab)=a(a+aa+ab)=aa+aaa+aab
    8.secretary typed 6 letters,each of which had either 1 or 2 pages.If the secretary typed 10 pages in all, how many of the letters had 2 pages?
    A 1 B 2 C 3 D 4 E 5
    答案是D,題目我都看不懂,是啥意思呢?
    這是說秘書打六封信,沒一封信要1頁或者兩頁。如果秘書總共打了10頁,那么有多少封信是兩頁?
    解答:設(shè)有x封,則2x+(6-x)=10,解得x=4.
    9 how many of the five numbers above are each equal to the product of an integer and an odd integer that GREater than 1?
    這五個數(shù)是:2 6 8 14 16
    a.none b.one c.two d.there e.four
    我覺得這道題除了2不可能,其它四個數(shù)都有可能.可答案是c,想問大家為什么?
    題目意思是這5個數(shù)哪些可以是2個>1的數(shù)的積,一個是奇數(shù),一個是整數(shù),只有6和14的因數(shù)中有奇數(shù),所以C。
    10 這句話大家看該怎樣列式子呢?這是一道圖表題.
    what was the approximate percent increase in personal income from 1965 to 1970?
    是這樣(1970-1965)/1965還是(1970-1965)/1970這樣?
    是這樣:(1970-1965)/1965
    以上即是備考新GRE數(shù)學(xué)易錯題型介紹,希望對大家的新GRE數(shù)學(xué)考試有所幫助。新GRE數(shù)學(xué)考試中也有難點,這就需要我們努力攻克,爭取把我們的優(yōu)勢發(fā)揮到最好。