mọi người cho mk cái link học hóa lớp 8 nhé mk mới học nên chưa quen nhé cảm ơn
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10 tháng 5 2018
PART A: LISTENING COMPREHENSION (10pts)
I. Listen to the conversation and decide which statements are true or false. k (v) in the right column. (6pts)
Statements | True | False |
1. Mi enjoys collecting glass bottles. | ||
2. She started her hobby four years ago. | ||
3. Her father shares this hobby with her. | ||
4. She thinks collecting glass bottles is difficult. | ||
5. She can make flower vases or lamps from these bottles. | ||
6. She will continue her hobby in the future. |
II. You will hear a woman asking for information about the city bus tour. Listen and complete the answers 7-10. (4pts)
City Bus Tours
Bus Tours depart every (7) _________ minutes. |
Last tour departs at (8) __________. |
ket prices: + Adults: £10 + Children: £ 5 |
Tour Bus Office Address: (9) __________________ Street. |
Buses leave from the (10) _________ Hall. |
PART B: PRONUNCIATION, VOCABULARY AND GRAMMAR
III. Choose the word A, B, C or D whose underlined part is pronounced differently from the others. (4pts)
11. A. pick B. ticket C. rock D. vacation
12. A. start B. minutes C. measure D. sick
13. A. together B. guess C. regular D. teenager
14. A. knife B. socket C. desk D. bookshelf
IV. Choose the best answer A, B, C or D to complete the sentences. (10pts)
15. This papaya is green. It is not __________.
A. small B. yellow C. good D. ripe
16. I didn't go to the cinema yesterday and Lan __________.
A. doesn't, either B. didn't, neither C. didn't, either D. wasn't, either
17. Would you to go to the movies tonight? - __________
A. Yes, I do B. Yes, I would C. Yes, I'd love to D. Yes, please
18. Some people play video games at home. __________ play them in arcades.
A. Others B. Other C. Another D. Each other
19. Hoa is reading short stories __________ Jack London.
A. of B. from C. by D. with
20. She was __________ of watching television.
A. interested B. tired C. tiring D. pleased
21. My new shoes don't __________ me very well. They are too big.
A. suit B. match C. fit D. agree
22. Mary and I are looking forward __________ our old friend.
A. of seeing B. for seeing C. to see D. to seeing
23. There are two churches in the town and __________ of them are extremely old.
A. both B. each C. all D. most
24. I'm going to a wedding on Saturday. __________ is getting married.
A. A friend of me B. A friend of mine C. One my friend D. A friend of I
V. Supply the correct tense or form of the verbs in brackets. (10pts)
25. I remember (meet) him somewhere.
26. You look tired. Sit down and I (make) you a cup of tea.
27. I'm trying (finish) my work. Please, stop (talk).
28. She paid for her ket and (leave).
29. You look worried. What you (think) about?
30. Everything (look) strange to newcomers.
31. My friend asked me (not tell) to anyone about it.
32. After (leave) school, John (find) it very difficult to get a job.
VI. Give the correct form of the words in brackets to complete the sentences. (10pts)
33. He tried to learn Chinese but he was ___________. (SUCCESS)
34. He will never forget his happy ___________. (CHILD)
35. How is your grandfather? – He is much ___________ today. (WELL)
36. I watch TV every day because it is very ___________. (INFORM)
37. We must keep our environment ___________. (POLLUTE)
38. They canceled all the ___________ because of the fog. (FLY)
39. I'm going to the shop for a rice ___________. What brand do you recommend? (COOK)
40. Every ___________ in my neighborhood has at least one TV set. (HOUSE)
41. I can do all of these exercises ___________. (EASY)
42. His ___________ of some words is not correct. (PRONOUNCE)
VII. Supply the missing prepositions. (5 pts)
43. I couldn't meet Mary because she was ________.
44. It won't be very long. I'll be back ________ ten minutes.
45. Please, translate this arle ________ English for me.
46. My brother is much better ________ gardening than me.
47. Sam Son beach is always crowded ________ tourists in the summer.
10 tháng 5 2018
PART A: PHONES: (5 points).
I. Choose the word whose underlined part pronounced differently from that of the others by circling A, B, C or D.
1. A. nervous B. scout C. household D. mouse
2. A. last B. taste C. fast D. task
3. A. improved B. returned C. arrived D. stopped
II. Choose the word whose stress pattern is different from the others by circling A, B, C or D .
1. A. comfort B. nation C. apply D. moment
2. A. medical B. advise C. vegetables D. physical
PART B: VOCABULARY AND GRAMMAR:
I. Circle the best answer A, B, C or D to complete the following sentences: (10 points).
1. Most people enjoy .......................to different parts of the world.
A. to travel B. travel C. traveling D. traveled
2. ....................... time do you spend learning English every day?
A. How much B. How many C. How long D. How often
3. This orange tastes ........................
A. sweetly B. sweety C. sweet D. sweets
4. Every one had ....................... at the picnic.
A. good time B. a good time C. good times D. better time
5. Would you to .......................for a walk later?
A. have B. make C. do D. go
6. Please don’t ....................... so much noise.
A. go B. make C. do D. take
7. Is there anything good.......................TV tonight?
A. on B. in C. near D. at
8. My mother doesn’t coffee and .......................
A. neither do I B. neither I do C. either do I D. I don’t too
9. Wear your hat. It will .......................your head.
A. protect B. defend C. secure D. guarantee.
10. The news on TV last night...........................very good.
A. was B. has C. were D. be
11. My father often drives his car ______ a speed of 50 kilometres an hour.
A. with B. on C. in D. at
12. Water never runs ______.
A. downhill B. uphill C. upside D. downside
13. It will be ready _______ two weeks.
A. for B. on C. in D. to
14. His parents were _______ poor to send him to school.
A. too B. much C. so D. very
15. It took ______ time to learn this lesson.
A. so many B. so C. so much D. such
16. He can’t buy that car because he has ______ money.
A. a lot of B. a little C. little D. few
17. It is ______ book that just a few people it.
A. so an old B. so old C. such old D. such an old
18. Unless you ______ quiet, I’ll go out.
A. don’t keep B. keep C. kept D. didn’t keep
19. How far is it from your house to your school? - “ ________”
A. I take 20 minutes to get to my school.
B. It took 20 minutes to get to my school.
C. It takes me 20 minutes to get to my school.
D. It took me 20 minutes to get to my school.
20. How often do you go to the post office? - “ _________”
A. two a week B. twice a week C. two times a week D. second time a week
II. Give the correct form of the verbs in brackets.
1. What you (do)…………at the moment? I (watch) ………….T.V.
2. We (not buy)................a book yesterday.
3. You must (do) ......................your homework before watching TV.
4. How much it ( cost ) …………….to mail a latter to England?
5. I will send him the message as soon as he (return)………………
6. A little girl can’t spend all her time (listen) ……………..to stories.
7. Hong and Nam (be )............ absent from class yesterday?
8. When my sister and I (live)................in Hue we (visit)............... a lot of interesting places.
III. Fill in the blank with one suitable preposition.
1. Life ……….the city is .different from that in the country.
2. Trang received a letter …………her aunt last week.
3. Eating too much candy is bad …………you.
4. Bao is very good ………………fixing house hold appliances.
5. We usally go fishing ………….summer.
6. They always go to school …………foot.
7. There are some English books ……….. the back of the library.
8. My school team took part …………… walking competition last year.
9. Please, come ……………….. It is cold outside.
10. Mr. Long is having a meeting ………….8.00 and 10.00 am today.
IV. Give the correct form of the words in parentheses. (10 points).
1. She often feels …………………when she gets bad marks. (happy)
2. My stomachache ....................... after I took the tablets. (appear)
3. My favorite subject at school is physical…………….. (educate)
4. Do you know that video games may be .................? (addict)
5. Catching the common cold is ................for everybody. (please)
6. Hoa is the most…………………………. girl in her class. (beauty)
7. My father has a ...................…computer. He often brings it with him when he’s away on business. (port)
8. Some of the children …….boys, play marbles when there is a break. (main)
9. My sister has a big……………………….….of stamps. (collect)
10. I have ....................time to play than my friends. (little)
28 tháng 6 2021
d) Ta có: \(D=\dfrac{21^2\cdot14\cdot125}{35^3\cdot6}\)
\(=\dfrac{7^2\cdot3^2\cdot7\cdot2\cdot5^3}{5^3\cdot7^3\cdot6}\)
\(=\dfrac{3^2\cdot2}{6}=\dfrac{6\cdot3}{6}=3\)
e) Ta có: \(E=\dfrac{45^3\cdot20^4\cdot18^2}{180^5}\)
\(=\dfrac{3^6\cdot5^3\cdot2^8\cdot5^4\cdot3^4\cdot2^2}{2^{10}\cdot3^{10}\cdot5^5}\)
\(=\dfrac{3^{10}\cdot5^7\cdot2^{10}}{2^{10}\cdot3^{10}\cdot5^5}=25\)
f) Ta có: \(F=\dfrac{2^{13}+2^5}{2^{10}+2^2}\)
\(=\dfrac{2^5\left(2^8+1\right)}{2^2\left(2^8+1\right)}=\dfrac{2^5}{2^2}=\dfrac{32}{4}=8\)
15 tháng 7 2021
Cô cx bảo thi cái này nhưng chx thi , vs lại mềnh lớp 5 ( sắp lên 6 r )
TN
5 tháng 11 2016
a)|7x-5|=|2x-3|
=>7x-5=2x-3 hoặc 7x-5=3-2x
=>5x=2 hoặc 9x=8
=>x=\(\frac{2}{5}\) hoặc x=\(\frac{8}{9}\)
Vậy x=\(\frac{2}{5}\) hoặc x=\(\frac{8}{9}\)
b)|4x-5|=x-7
\(VT\ge0\Rightarrow VP\ge0\Rightarrow x-7\ge0\Rightarrow x\ge7\)
=>4x-5=x-7 hoặc 4x-5=-(x-7)
=>3x=-2 hoặc 5x=12
=>x=\(-\frac{2}{3}\)(loại do \(x\ge7\)) hoặc x=\(\frac{12}{5}\)(loại do \(x\ge7\))
Vậy pt vô nghiệm
c)Ta thấy: \(\hept{\begin{cases}\left(x+8\right)^4\ge0\\\left|y-7\right|\ge0\end{cases}}\)
\(\Rightarrow\left(x+8\right)^4+\left|y-7\right|\ge0\)
Dấu = khi \(\hept{\begin{cases}\left(x+8\right)^4=0\\\left|y-7\right|=0\end{cases}}\)\(\Rightarrow\hept{\begin{cases}x+8=0\\y-7=0\end{cases}}\)\(\Rightarrow\hept{\begin{cases}x=-8\\y=7\end{cases}}\)
Vậy \(\hept{\begin{cases}x=-8\\y=7\end{cases}}\)
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