... + 4)x
2
– 4x + m
Có số điểm cực đại và cực tiểu là:
A. Không có cực đại cực tiểu
B. Có một cực đại, một cực tiểu
C. Có hai cực đại, một cực tiểu
D. Có một cực đại, hai cực tiểu
Câu 7: Cho hàm ...
+≥
≤−
1
07
mmx
x
Xét các mệnh đề sau:
(I) Với m < 0 hệ luôn có nghiệm.
(II) Với 0
≤
m <
6
1
hệ vô nghiệm
(III) Với m =
6
1
hệ có nghiệm duy nhất
Mệnh đề nào đúng:
A. Chỉ (I) B. (II) và (III)
C. ... có tất cà các phần tử là nghiệm của (1)?
A. {2;3} B. (-
),4[]2,
+∞∪∞
C. [2;8] D. [1;4]
Câu 25: Xác định m để phương trình:
(x- 1)[ x
2
+ 2(m + 3)x + 4m + 12] = 0 có 3 nghiệm phân biệt bé hơn...
... dịch sẽ biến đổi như thế nào?
A. Từ tím sang đỏ B. Từ đỏ sang tím rồi xanh
C. Từ xanh sang tím rồi đỏ D. Từ tím sang xanh
Câu 75: Nguyên liệu thường dùng để điều chế kim loại kiềm là
A. oxit ... 107: Ngâm thanh Fe vào dung dịch chứa 0,03 mol Cu(NO
3
)
2
một thời gian, lấy thanh kim loại
ra thấy trong dung dịch chỉ còn chứa 0,01 mol Cu(NO3)2.Giả sử kim loại sinh ra bám hết vào thanh
sắt. ... dịch HCl là
A. 1M B. 2M C. 2,5M D. 0,5M
Câu 67: Ngâm một thanh Cu trong dung dịch có chứa 0,04 mol AgNO
3
, sau một thời gian nhấc
thanh kim loại ra thấy khối lượng tăng hơn so với lúc đầu là...
... like making beds and waiting on tables.
host (n) : chủ expense (n) : chi phí
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ I)
UNIT 6: THE YOUNG PIONEERS CLUB
TEST 1
I. Choose the word that ... your left.
A B C D
17. Can you help me moving this table?
A B C D
I’ve got some really (21)_____ news. I may go to Camp Timber with Ace
(22)_____ this summer. Mum (23)_____ I can go. The only ... (23)_____ I can go. The only (24)______ is
that Ace’s dad says that it’s too expensive. Still Ace thinks he’ll probably be
able to make some money by doing jobs around the house. He even
promised...
... Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ I)
UNIT 7 : MY NEIGHBORHOOD
TEST 1
I. Choose the word that has ... as people b. as many people as
c. such many people like d. so many as people
13. _____ is something that people make or grow to sell.
a. Product b. Production c. Produce d. Productive
14. ... people want to live in comfortable in their old age.
A B C D
18. The city center wasn’t as crowded this morning like it usually is.
A B C D
19. For January, he has taken five exams and hasn’t got...
...
23. a. have b. has c. there is d. there are
24. a. in b. at c. on d. of
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ I)
UNIT 7 : MY NEIGHBORHOOD
TEST 3
I. Choose the word whose main ...
17. Tennis has been the most important thing to her for she was a little girl.
A B C D
18. ‘Have something to eat. You have to be hungry.’
A B C D
19. This job is a lot different with what ... the world’s
(27)____buildings, the John Hancock Center, is (28) _____ on this avenue.
opera (n) nhạc kịch avenue (n) đại lộ
row (n) hàng, dãy fashionable (adj) sang trọng
21. a. city b. capital...
... boots. The
other man looked (24) _____ him and said, “Are you crazy? Do you think
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ I)
UNIT 4: OUR PAST
Test 1
I.Choose the word that has the ... d.crocodiles
30. We can replace the word ‘believe’ in line 7 with _____ .
a. ‘know’ b. ‘say’ c. ‘think’ d.’appear’
31. Which of the following is true?
a. All legends are about the past.
b. Modern ... here but it close a long time ago.
A B C D
18. I don’t want to sound likely I’m complaining, but this plan is unfair.
A B C D
19. We took all the rubbish outside and burn it.
A B C D
20. He...
... the____ day in London for 35 years.
a. hoter b. hotter c. hotest d .hottest
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ I)
UNIT 8 : COUNTRY LIFE AND CITY LIFE
TEST 1
I. Choose the word ... jams.
Some of my friends think we should build more roads. Others think we
should ban cars from the center of Winchester. Others think more people
should travel by bus. I think people should use ... _______ now that the exams are over.
a. more relaxed b. more relaxing c. relaxer d. relax
9. I think this milk is turning_______.
a. sour b. sourly c. sourness d. more sourly
10. Our new car is...
...
A.15
B. 50
C. 5
8.4 He goes to work ________.
A. on foot
B. by bicycle
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ I)
UNIT 8 : COUNTRY LIFE AND CITY LIFE
TEST 3
I. Choose the word ... You’re living in this village. What do you think about moving to
the
city ?
Woman: Well, I don’t like that idea. I prefer to live here.
8.2 Man: Where did you live before moving to this town ? ... place to meet with friends. There are (23)
______market places, where people can find almost anything they need. (24)
_____ Sundays, parks are a (25) place for family outings. Many people
move...
... b. paper c. bank d. application
2. a. enroll b. hobby c. program d. over
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ I)
UNIT 6: THE YOUNG PIONEERS CLUB
TEST 3
I. Choose the word whose ... D
20. Take this form to your teacher and ask her sign it.
A B C D
IV. Choose the word (a, b, c, or d) that best fits each of the blank spaces
Have you ever wanted to do something (21) ? ...
my mum put in this backpack.
Tony : Yesterday the (6.14)________ teacher said we could bring some used
textbooks and magazines to the children in there. Have
you gotten anything?
Nam: Oh,...
... cup for stopping it damaging the table.
A B C D
18. I think you are enjoying the party tomorrow.
A B C D
19. Why don’t you come across this evening and we’ll talk about it
then?
A B C D
20. ... unconscious c. consciously d. unconsciously
14. Scale is an instrument for showing_____people or things are.
a. how heavy b. how tall c how old d. how high
15. I tried to cheer him_____, but ...
really good - (23) _____ better than (24) _____ comics.
9.1 She broke her left leg.
9.2 Man: This is an emergency. Please send an ambulance to Sao
Mai School. The address is 222 Le Quy Don...
... c. going d. to going
24. a. interested b. interesting c. bored d. boring
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ II)
UNIT 10 : RECYCLING
TEST 1
I. Choose the word that has the ...
28. What does the word ‘reuse’ in line 2 mean?
a. use something again b. use all of something
c. throw something away d. not buying things which are overpackaged
29. Glass _______.
a. is made ...
12. Everything depends on what you mean____the word “free”.
a. about b. by c. of d. for
13. We should use______bags instead of plastic bags.
a. cloth b. clothe c. clothed d. clothing
14....
... word ‘rubbish’ in line 5 mean?
a. things that you do not want any more
b. something that you make by mixing different things together
c. things that is bad
d. things that is very old
32. What ... mean?
a. things that you do not want any more
b. something that you make by mixing different things together
c. pieces of paper and other things that people leave on the ground
d. things that ... compost c. deposit d. mosquito
4. a. library b. recycle c. family d. easy
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ II)
UNIT 10 : RECYCLING
TEST 3
I. Choose the word whose main...
...
our first (22) _____ to Asia. We loved it. We went to the (23) _____ market
Bộ đề trắcnghiệmTiếngAnh lớp 8 (học kỳ II)
UNIT 11: TRAVELING AROUND VIET NAM
TEST3
I. Choose the word whose ... Ha Noi ?
Man: With this driving speed, it takes about thirty-minutes.
11.2 Woman: Have you ever seen a water buffalo ?
Man: No. But I’ve seen buffalos
11.3 Woman: Is this your first time ... majority of
Hue’s hotels, restaurants and tourist services are located and this makes it
easy for you to find everything you will need to maximize the enjoyment of
your stay in the Imperial...