用戶【peter971016】點評問題和點評內容

【評論主題】【題組】34. (A) it (B) them (C) one (D) ones

【評論內容】one 用來代替前文的單數名詞,指同類中...

【評論主題】【題組】33. (A) nor (B) and (C) or (D) but

【評論內容】Smartphones are real☆☆ ☆☆☆☆☆☆☆,...

【評論主題】【題組】32. (A) both (B) either (C) neither (D) but

【評論內容】Many people often ca☆☆☆ ...

【評論主題】30. Zoe: Why does doing exercise help deal with stress? Yvonne: _______________(A) It helps you brea

【評論內容】

Zoe: Why does doing exercise help deal with stress? Yvonne: _______________

>deal with「解決」

【評論主題】29. Our friend, Alex, is kind and nice. He always lends an ear to everybody. We’re now in trouble. _

【評論內容】Our friend, Alex, is ☆☆☆☆ ☆☆☆ ...

【評論主題】28. ________ the vet was checking the dog, her smartphone rang.(A) After (B) If (C) While (D) before

【評論內容】________ the vet was ☆☆☆☆☆☆☆☆ ...

【評論主題】27. Dad was fixing the window when Mom ______ the cages.(A) moved (B) moves (C) moving (D) has moved

【評論內容】Dad was fixing the w☆☆☆☆☆ ☆☆☆☆ ...

【評論主題】26. _______ it was snowing heavily, they still got to school on the dot.(A) Because (B) Although (C)

【評論內容】_______ it was snow☆☆☆ ...

【評論主題】25. Henry adopted the cat _________ it looked like his lost cat.(A) since (B) because (C) until (D)

【評論內容】

Henry adopted the cat _________ it looked like his lost cat.

依句義使用because

【評論主題】24. The camera is ______ light ______ modern. Let’s not buy it.(A) neither; nor (B) not only; but al

【評論內容】The camera is ______ ☆☆☆☆☆ ______ ...

【評論主題】23. Not only Hank but also Gina _______ the great scientist, Stephen Hawking(史蒂芬・霍金).(A) respect (B)

【評論內容】Not only Hank but al☆☆ ☆☆☆☆ ...

【評論主題】22. Two years ago, Judy _______ the house on Happy Road and got lots of money from it.(A) sold (B) h

【評論內容】Two years ago, Judy _______ ☆☆☆ ...

【評論主題】21. We got to the theater too late, and the movie _________ then.(A) was starting (B) started (C) ha

【評論內容】We got to the theate☆ ☆☆☆ ☆☆☆☆, ...

【評論主題】20. Kevin _______ Japan several times since he was a kid, so he doesn’t want to take a trip there wi

【評論內容】Kevin _______ Japan ☆☆☆☆☆☆☆ ...

【評論主題】【題組】34. (A) it (B) them (C) one (D) ones

【評論內容】one 用來代替前文的單數名詞,指同類中...

【評論主題】【題組】33. (A) nor (B) and (C) or (D) but

【評論內容】Smartphones are real☆☆ ☆☆☆☆☆☆☆,...

【評論主題】【題組】32. (A) both (B) either (C) neither (D) but

【評論內容】Many people often ca☆☆☆ ...

【評論主題】30. Zoe: Why does doing exercise help deal with stress? Yvonne: _______________(A) It helps you brea

【評論內容】

Zoe: Why does doing exercise help deal with stress? Yvonne: _______________

>deal with「解決」

【評論主題】29. Our friend, Alex, is kind and nice. He always lends an ear to everybody. We’re now in trouble. _

【評論內容】Our friend, Alex, is ☆☆☆☆ ☆☆☆ ...

【評論主題】28. ________ the vet was checking the dog, her smartphone rang.(A) After (B) If (C) While (D) before

【評論內容】________ the vet was ☆☆☆☆☆☆☆☆ ...

【評論主題】27. Dad was fixing the window when Mom ______ the cages.(A) moved (B) moves (C) moving (D) has moved

【評論內容】Dad was fixing the w☆☆☆☆☆ ☆☆☆☆ ...

【評論主題】26. _______ it was snowing heavily, they still got to school on the dot.(A) Because (B) Although (C)

【評論內容】_______ it was snow☆☆☆ ...

【評論主題】25. Henry adopted the cat _________ it looked like his lost cat.(A) since (B) because (C) until (D)

【評論內容】

Henry adopted the cat _________ it looked like his lost cat.

依句義使用because

【評論主題】24. The camera is ______ light ______ modern. Let’s not buy it.(A) neither; nor (B) not only; but al

【評論內容】The camera is ______ ☆☆☆☆☆ ______ ...

【評論主題】23. Not only Hank but also Gina _______ the great scientist, Stephen Hawking(史蒂芬・霍金).(A) respect (B)

【評論內容】Not only Hank but al☆☆ ☆☆☆☆ ...

【評論主題】22. Two years ago, Judy _______ the house on Happy Road and got lots of money from it.(A) sold (B) h

【評論內容】Two years ago, Judy _______ ☆☆☆ ...

【評論主題】21. We got to the theater too late, and the movie _________ then.(A) was starting (B) started (C) ha

【評論內容】We got to the theate☆ ☆☆☆ ☆☆☆☆, ...

【評論主題】20. Kevin _______ Japan several times since he was a kid, so he doesn’t want to take a trip there wi

【評論內容】Kevin _______ Japan ☆☆☆☆☆☆☆ ...

【評論主題】4. 已知 (AB)1且 [AB]60則下列何者不可能是A或B任意一數(A) 2(B) 3(C) 4(D) 5

【評論內容】

(A, B) = 1, 表示A, B數互質

[A, B] = 60 = 1 x 2^2 x 3 x 5,因為互質,所以二數沒有共同因數,所以有以下組合

A = 1, B = 60

A = 3, B = 20

A= 4, B = 15

A = 5, B = 12

A = 12, B = 5

A = 15, B = 4

A = 20, B = 3

A = 60, B = 1

所以答案A,B數不可能有2, 我們可反證(A = 2, B = 30 或 A = 30, B = 2, 它們不互質,有共同因數2) 

【評論主題】2. 請問下列各數中,哪個是23×3×5的倍數? (A) 24×32(B) 23×3×7 (C) 22×32×52×7 (D) 23×33×5×7。

【評論內容】

題目是 2 ^ 3 x 3 x 5 嗎?

若是,答案是D

【評論主題】24. 已知 (2y+5)與 (6x-3)成正比,且當x=-3時,y=1,則 x與 y的關係式為何? (A) 3x-y+1=0  (B)5x-3y+2=0(C) x-y+4=0  (D) x+y+2=

【評論內容】

因為成正比 (2y + 5) = k (6x - 3) ------- 算式一

將x=-3, y=1代入

2+5 = k(-18-3)

7 = -21k

k = -1/3

再將k代入算式一

2y+5 = -1/3(6x-3)

2y+5 = -2x + 1

2x + 2y + 4 = 0

2(x+y+2) = 0

x+y+2 = 0

【評論主題】23. 下列敘述何者錯誤?(A) x+2y=0 的圖形為通過原點的直線(B) (-3,0) 在 3x=-9 的直線上(C) 2y=5 的圖形為與y軸平行的直線(D)2x-3y+6=0的圖形為不通過第四

【評論內容】

A -- 將原點代入(0, 0), 0 = 0, 表示有通過原點

B -- 3x = -9, x = -3, -3 = -3 表示有在3x = -9直線上

C -- 2y = 5, y = 5/2, 表示通過y = 5/2 垂直Y軸且平行X軸, 所以錯誤

D -- 設X = 0 , y = 2, 設 y = 0, x = -3,在座標圖上通過二點直線,是不通過第四象限

【評論主題】22. 兩直線方程式2x-3y=12、5x+3y=9的圖形與 x軸所圍成的三角形面積為何?(A) 7 (B) (C) (D)

【評論內容】

因要與X軸圍成三角形面積,所以設Y = 0

2x - 3y = 12 設 Y = 0, x = 6

5x + 3y = 9 設 Y = 0, x = 9/5

求二方程式交點

2x - 3y = 12

5x + 3y = 9

二式相加

7x = 21, x = 3, y = -2

底 = 6 - 9/5 = 21/5

高 = | y| = |-2| = 2

面積 = 21/ 5 x 2 x 1/2 = 21/5