... toạ độ giao điểm I c a d
1
,
d
2
và viết phương trình mặt phẳng (Q) qua d
1
,d
2
Câu VII .a. (1 điểm)
Có hai đội đi thi học sinh giỏi tiếng Anh. Đội thứ nhất có 7 bạn nam và 3 bạn nữ.
Đội ... trắng ở gi a hai bi xanh.
2. Trên vòng tròn bi trắng ở gi a hai bi đỏ.
Biên soạn: ThS. Đỗ Đường Hiếu
-30-
Bộ đề luyệnthi Đại học và Cao đẳng môn Toán – 2009
2. Tìm t ađộ giao điểm c a (S) với ... điểm)
Giải hệ phương trình khi a& gt; 1
2
1
3
2
1
3
a
x a y a z a
a
a
a x a y a z
a
+
+ + + + + =
−
− + − + − =
II. PHẦN RIÊNG (3 điểm)
Thí sinh chỉ được làm một trong hai phần (phần 1...
... đứng ABCD .A B’C’D’ có đáy là hình bình hành,
AB a=
,
3
'
2
a
AA =
. Lấy M, N lần lượt là trung điểm các cạnh A D’, A B’. Biết
( )
'AC mp BDMN⊥
, tính thể tích khối a diện A NM.ABD. ... chóp S.ABCD có đáy ABCD là hình chữ nhật với
AB a=
,
2AD a=
,
SA a=
và SA vuông góc với mặt phẳng (ABCD). Gọi M và N lần lượt
là trung điểm c a AD và SC; I là giao điểm c a BM và AC. Chứng ... nhật ABCD .A B’C’D’ có AB = a, BC = 2a, AA’ = a. Lấy
điểm M trên cạnh AD sao cho AM = 3MD. Tính thể tích khối chóp M.AB’C và
khoảng cách từ M đến mp(AB’C).
Câu V (1 điểm)
Cho x, y ,z là các...
... ra khỏi 2 kim loại a và b lần lượt là 3nm và 4,5nm. Công
thoát tương ứng là A
1
và A
2
sẽ là :
A. A
2
= 2 A
1
. B. A
1
= 1,5 A
2
C. A
2
= 1,5 A
1
. D. A
1
= 2A
2
Câu 46 . Công thoát c a ... Khi đặt vào A và K hiệu điện thế âm U
AK
= - 2V → U
KA
= 2V : các elctrôn đi sang A đi theo chiều điện
trường chậm dần đều . Ta có : W
A
- W
đmax
= e.U
KA
=+=⇒
KAđ A
UeWW .
max
9,825.10
... đổi gi a hai cực. Trong một
phút người ta đếm được 6.10
18
điện tử đập vào anốt. Tính cường độ dòng điện qua ống Cu-lít-giơ
A. 16mA B. 1, 6A C. 1,6mA D. 1 6A
Câu 57 . Một ống phát ra tia Rơghen...
... country and city have separate advantages and disadvantages. Which place
people prefer to live depends on their hobby and job. The city is noisier than the
country with many restaurants, bars, ... during our holiday in Nha
Trang.
After those days, we came back to Hanoi. I felt ready for a new school year. My
last summer holiday was really unforgettable.
Describe about Hanoi
... when having a friend like Huyen. She encourages me a lot, gives me
many useful advices and shares with me everything in life. Because we study
the same major, we can also discuss and exchange...
... Only a few
(D) Not much
10. I can't find ________.
(A) myself the hat
(B) me the hat
(C) the my hat
(D) my hat
11. Janet and I live quite near ________ each other.
(A) from
(B) -
(C) at
(D) ... down.
(A) fell
(B) felt
(C) have fallen
(D) have felt
2. Can you ________ French?
(A) to speak
(B) speak
(C) speaks
(D) speaking
3. I have a sister but ________ brothers.
(A) no
(B) any
(C) ... - Well it was ________ that I feel like going to bed.
(A) so long test
(B) very long test
(C) a long test
(D) such a long test
17. After years of war the whole nation wanted to make ________...
... like table tennis at all.
(A) has
(B) hasn't
(C) don't
(D) doesn't
6. Stop ________ such a terrible noise, please!
(A) to make
(B) make
(C) making
(D) made
7. This man has dark ... hour
(B) always leave half an hour early
(C) leave always half an hour early
(D) leave always early half an hour
3. ________ of my friends can speak French very well.
(A) No one
(B) Nobody
(C) ...
A
A
A
D
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Trình độA - Bài 18
1. He's ________ intelligent than his sister.
(A) lesser
(B) much less
(C) much fewer
(D) not so
2. I ________.
(A) always leave early half an hour
(B) always leave...
... operation.
(A) in
(B) on
(C) into
(D) with
8. I was ________.
(A) yesterday at home all day
(B) yesterday all day at home
(C) at home all day yesterday
(D) all day at home yesterday
9. ________ ... With
12. Although now ________ to Africa and South America, yellow fever is still deadly.
(A) limited
(B) limiting
(C) limit
(D) is limited
13. Oh dear, there's a leak in my waterpipe, I'll ...
D
D
B
D
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
(A) make
(B) are having
(C) get
(D) are getting
6. Were you at school yesterday? Yes, ________.
(A) there we were
(B) were we
(C) we were
(D) I were
7. I went ________ hospital for an operation....
... That ________ in 1945.
(A) was happened
(B) happened
(C) did happened
(D) had happened
13. ________ the corner, a brick fell on his head.
(A) Turning
(B) When he turned
(C) Having turned
C
A
B
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
5. ... made
(C) resulted in
(D) created
17. Dusit likes watching TV. ________ does Dara.
(A) So
(B) Either
(C) Nether
(D) Too
18. Vasco da Gama ________ the sea rout to India.
C
B
C
A
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
(B) ... (A) discover
(B) discovered
(C) invent
(D) invented
19. Before we finished the exercise, he told us to ________ our books.
(A) put away
(B) push away
(C) get away
(D) go away
20. He hasn't...
... ________ TV again!
(A) are watching
(B) watch
(C) to watch
(D) have watched
8. What ________?
(A) do you write
(B) you write
(C) you're writing
(D) are you writing
9. In some countries today there's ... all
B
A
1
2
3
4
5
6
7
8
9
10
11
12
13
Trình độA - Bài 21
1. ________ a blackboard in the classroom?
(A) Is
(B) Is it
(C) Is there
(D) Are there
2. Mark went back ________ his keys.
(A) to getting
(B) for ... children wake ________ early in the summer.
(A) off
(B) to
(C) up
(D) out
4. We go out ________.
(A) every Friday
(B) all Fridays
(C) every Fridays
(D) all the Fridays
5. This is my bike. This bike...
... unless
(D) so long as
12. The final ________ of the play will take place on Saturday.
(A) action
(B) performance
(C) view
(D) sight
13. Famine occurs when all the people in an area have hardly ________ ... post of Assistant Manager are requested to apply ________.
(A) as a person
(B) in person
(C) as persons
(D) by person
11. You can stay here ________ you don't make a loud noise.
(A) otherwise
(B) ... yellow.
(A) Her
(B) You
(C) She
(D) He
8. Why do you ________ pass you the map?
(A) want me
(B) want to me
(C) to want me
(D) want me to
9. ________ means has been considered.
(A) All
B
A
A
D
D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
(D)...