0

cac de hsg 8 anh hay

de HSG 8 cuc hay co HD

de HSG 8 cuc hay co HD

Toán học

... 2.3 3.4 99.100 3 98 99 99 100 100 100 b (2đ): 1+ 3 1 1 1 1 29 + + + = + + + + = 1+ = =1 2.5 5 .8 17.20 5 17 20 20 20 20 Câu 3: (5 điểm) a.(2đ) |x-2| -6 = x-2 =6 x =8 |x-2| =6 x-2 =-6...
  • 4
  • 429
  • 0
Các đề HSG 8

Các đề HSG 8

Toán học

... y 9; x, y ) => (x,y) cặp (2, 9); (3, 8) ; (4, 7); (5, 6); (6, 5); (7, 4); (8; 3) (9, 2) Thay lân lợt cặp vào (1) ta thấy ó x =8 y=3 thỏa mãn Vậy số cần tìm 83 Bài (2,0 điểm) Điều kiện: x -1 Ta ... =1/3 hay x = y = z = Bài (3,0 điểm) a (1,5 điểm) A N H M E F C B O Theo tính chất tiếp tuyến ta có OM, ON lần lợt phân giác góc 0,25 EOH, FOH 0,25 Tứ giác AEOF nội tiếp nên BAC + EOF = 180 o 180 o ... c,d thoả mãn a + b + c + d = Chứng minh rằng: a3 + b3 + c3 + d3 = 3(c+ d)(ab- cd) M= x 39 08 + x 39 58 c) Tìm GTLN biểu thức N = 1 + + Biết a ,b ,c 2 a + 2b + b + 2c + c + 2a + số dơng thoả mãn...
  • 12
  • 243
  • 0
Chuyen de HSG 8 hay cac ban oi

Chuyen de HSG 8 hay cac ban oi

Toán học

... = DE DE DE DE CE AE - DE AE AB AE AB = = 2= (vỡ Hay = : DE DE DE DF DE DF DF = AB) DC) B Do DF // M K G F CE AK + BK 2(AK + BK) = 2= (Do DF = Suy DE DE AK A D E CE 2(AK + BK) 2BK = = (2) DE ... ht cho B = x2 x + b) C = 8x9 9x8 + = 8x9 - 9x8 + = 8( x9 1) 9(x8 1) = 8( x 1)(x8 + x7 + + 1) 9(x 1)(x7 + x6 + + 1) = (x 1)(8x8 x7 x6 x5 x4 x3 x2 x 1) (8x8 x7 x6 x5 x4 x3 x2 ... Chng minh rng f(x) = x99 + x 88 + x77 + + x11 + chia ht cho g(x) = x9 + x8 + x7 + + x + Ta cú: f(x) g(x) = x99 x9 + x 88 x8 + x77 x7 + + x11 x + = x9(x90 1) + x8(x80 1) + + x(x10 1) chia...
  • 57
  • 324
  • 0
Đề HSG Môn Anh 8 (05-06)

Đề HSG Môn Anh 8 (05-06)

Tiếng anh

... 10-noisy 3-performance 8- success IV) Mỗi câu 0,5đ 1) Does Mr Green mend this bladder? 2) What an intelligent girl! 3) That kitchen is bigger than this living-room 4) Khanh advised Huy to take ... example for you (3ms) 0) Tom wrote that letter - That letter was written by Tom 1) Is this bladder mended by Mr Green - Does Mr Green _ 2) That girl is very intelligent - What ... isn’t as big as that kitchen - That kitchen 4) Khanh said “You ought to take a break, Huy” - Khanh advised 5) We’ve never met such a famous singer...
  • 5
  • 462
  • 2
Đề HSG Môn Anh 8 (03-04

Đề HSG Môn Anh 8 (03-04

Tiếng anh

... Lãnh KỲ THI HỌC SINH GIỎI VÒNG HUYỆN KHỐI PHÒNG GIÁO DỤC VÀ ĐÀO Năm học 2003 – 2004 TẠO Môn: TIẾNG ANH Thời gian: 150 phút (Không kể thời gian phát đề) THÍ SINH KHÔNG ĐƯC VIẾT VÀO ĐÂY -Đề ... the street is ! (danger) The Sword Lake is one of places in Hanoi (history) He devoted all his to writing (live) He often writes stories He is a (write) ... (mend) VI Rewrite or combine the following sentences into a new one as directed (4ms) He can get hay for cattle He keeps grass (Use by + present participle) - When has he bought...
  • 4
  • 385
  • 5
Tổng hợp 5 đề HSG T. Anh 9 có key ( Rất hay )

Tổng hợp 5 đề HSG T. Anh 9 có key ( Rất hay )

Tiếng anh

... kim têng – Trêng THPT CÈm thñy 1, Thanh ho¸ I miss … Please see that you post all the letters Please don’t … He has decided to take driving lessons He has decided to learn… I’m not going to pay, ... One day they went to Hyde Park and walked along on the grass to Kensington Garden …7… the bright autunm sunshine It was very quiet here Only 8 noise from the streets reminded them that they were ... were 8 of flowers, and ducks were swimming about lª kim têng – Trêng THPT CÈm thñy 1, Thanh ho¸ on the Round Pond George, …9… hobby was planes and boats, was very much interested in the model...
  • 16
  • 1,276
  • 31
de HSG tine Anh 8

de HSG tine Anh 8

Tư liệu khác

... 53 A habit B reputation C thing D idea 54 A make B talk C approach D work 55 A agree B understand C know D accept VI.Read the following passage carefully Decide whether each of the statements ... with each other again” Her idea succeeded The …………………( 73 ) thing happened in other parts of the country After she …………………( 74 ) her daughter carried on the idea In 19 08, “Mother’s friendship Day” ... ) 78 He spoke ………………….about that subject and won the contest ( persuade ) 79 …………………… is better than cure ( prevent ) 80 Because of the shortage of water, we should use it …………….( effect ) 81 ...
  • 4
  • 598
  • 2
đề HSG T.Anh 8-ct

đề HSG T.Anh 8-ct

Tiếng anh

... Your brother is not………………………………… ….………………… KEYS I 1B 18C 2C 9D 3B 10A II VOLUNTARY SOCIABLE 4A 11A 5A 12C 6C 13A 7D 14C 15C WORLDWIDE ORPHANAGE Depth BEAUTIFULLY TRADITIONAL III are watching have ... following passage and choose the best answer(1.5pts) Every year students in many countries learn Enghlish Some of these students are young children Others are teenagers Many are adults Some ... lesson Many boys and girls learn English because ……… A English can give them a job B it's included in their study courses C.their parents make them D.they have to study their own language In...
  • 4
  • 397
  • 1
tong hop cac de HSG hay(st)

tong hop cac de HSG hay(st)

Vật lý

... hao phí Php = R thay R = S = d U P 4l Php = ì U d d2 ì l ì D ; Vậy công suất hao phí là: Do m = VD = l DP Php = mU 5000002 ì1, 7.1 08 ì 2400002 ì 88 00 = 103 788 ,88 4(W ) - Thay số: Php = 1995 ... Qta = 82 %.Q = 80 %.P.t = 0 ,8. 1200.720 = 7 087 40J p dng phng trỡnh cõn bng nhit ta cú: Q1 + Q2 = Qta - 50 - Hay: 672000 + 70400m = 7 087 40; 70400m = 36 480 vy m = 0,5 18 kg Khi lng m nhụm l 0,5 18 kg ... tế bếp P = 1100ì0 ,88 = 968W - Nhiệt lợng cần thiết đun sôi nớc Q = (c1m1+c2m2)t = 171640(J) - Thời gian đun sôi nớc t = Q P Pt 9 68 ì ì 60 = L 24.105 số m = 96 ,8. 10 -3 kg = 96,8g - Phần trăm nớc...
  • 71
  • 363
  • 0
ĐỀ HSG TIẾNG ANH 8

ĐỀ HSG TIẾNG ANH 8

Tiếng anh

... 17 Mr Minh used to alot when he was young A smoke B smoking C smoked D.be smoking 18 Minh drew that picture No one helped him A himself B heself C hisself D Minhs self 19 Why are ... turning on the TV ? I the news A will watch B am going to watch C watch D watched 20 Hung is to ride motobike to school A not old enough B old not enough C enough old not D enough not old 21 We ... boring D excited 27 Their family had a few rest after a long trip A hours B hours C hours D hour 28 Either I or Tom .beef A doesnt like B dont like C like D likes 29 When I called her, she a bath...
  • 4
  • 568
  • 11
TT Đề thi HSG Tiếng Anh hay(Tuấn Anh-Nga Điền)

TT Đề thi HSG Tiếng Anh hay(Tuấn Anh-Nga Điền)

Tiếng anh

... pages tell readers? ……………………………………………………………………………………… ……………………… Tài liệu tích lũy hay Mai Tuấn Anh, GV Trường THCS Nga Điền – Nga Sơn – Thanh Hóa Where can readers often find the index of a book? ... needed to heat and cool (8) _ buildings; at the same time, they also remove other impurities from the air we breathe Tài liệu tích lũy hay Mai Tuấn Anh, GV Trường THCS Nga Điền – Nga Sơn – Thanh ... isn't back at work 10 We made the uniforms ourselves as we couldn't ……………… made YOUR ANSWERS: Tài liệu tích lũy hay Mai Tuấn Anh, GV Trường THCS Nga Điền – Nga Sơn – Thanh Hóa 1…………………2……………………….3……………………….4……………………...
  • 268
  • 612
  • 10
Đề HSG Tiếng Anh 8 vòng huyện 09-10_có dáp án

Đề HSG Tiếng Anh 8 vòng huyện 09-10_có dáp án

Toán học

... ……………………………………… of him (Pride) Children need to have a good …………………………………(Educate) He has a ……………………… leg because he fell off the ladder (Beak) Some of my ………………………………live in the countryside (Relate) Our ... goes C pours D walks 10 A pride B priding C prided D proud Part 2: Read the passage, and then answer the questions below (2pts) More and more people from the countryside are moving to the city with ... Lat is described as a forest of flowers with (3) color and various species Flowers can be found (4) and in any season We can see flowers in Da Lat in the parks, (5) of the houses; in the gardens...
  • 6
  • 1,465
  • 14
4 de HSG 8 co dap an  hay

4 de HSG 8 co dap an hay

Tiếng anh

... (7b) air 8- Most people like (8a) rest after (8b) hard days work 9- John and Mary are (9a) brother and (9b) sister 10- Bangkok, (10a) capital of Thailand, is (10b) exciting, crowded and modern city ... ? 7- When meeting a new word you can look it (7a)(7b) a dictionary 8- You must be present (8a) 9.30 because the last train (8b) London leaves at 9.45 9- Lucy was brought (9a) by her uncle and ... in C through D on A bring B cause C provide D result A enough B too C such D so A who B whose C whom D which Week 28 đề thi chọn học sinh giỏi Môn Tiếng Anh lớp Thời gian làm 120 phút Câu I Chọn...
  • 11
  • 3,094
  • 23
CAC DE HSG TOAN 8 VA CHUYEN VAO AV

CAC DE HSG TOAN 8 VA CHUYEN VAO AV

Toán học

... TÝnh gi¸ trÞ cđa biĨu thøc: B = x19 − x 18 + x17 − x16 + − x + x + 188 6 víi x = C©u 2: (2 ®iĨm)a) T×m nghiƯm nguyªn cđa ph¬ng tr×nh x + x − 12 y = Trònh Anh Vũ Học, Học nữa, Học Học, Học nữa, ... b+c c+a a+b C©u ( 5®) Cho biĨu thøc A = x2 + 8x -9 §Ị 31 Bµi 1: (2 ®iĨm) Ph©n tÝch ®a thøc sau ®©y thµnh nh©n tư: x + x + x + 20 08 x + 2007 x + 20 08 a) ViÕt biĨu thøc A díi d¹ng mét tÝch b) T×m ... lµ bao nhiªu §Ị sè 18 C©u 1: (2 ®iĨm)Gi¶i c¸c ph¬ng tr×nh sau: a) x + x = ;b) x − − x − = C©u 2: (2 ®iĨm)Cho biĨu thøc: A = 1 1 + + + + 1.3 3.5 5.7 2003.2005 18 x3 x2 x + 19 78 + cã gi¸ trÞ nguyªn...
  • 30
  • 781
  • 6
TUYỂN TẬP CÁC ĐỀ THI HÓA HỌC HAY LỚP 8

TUYỂN TẬP CÁC ĐỀ THI HÓA HỌC HAY LỚP 8

Hóa học

... 17,1M = 2,7M+ 388 ,8 - 14,4M= 388 ,8 388 ,8 M= = 27(g) 14,4 M= 27 nhôm (Al) 5,4 b, Nal = = 0,2(mol) 27 2Al+ 3H2SO4 - Al2 (SO4)3+3H2 o,2 mol o,3 mol - Nh2SO4 = 0,3 mol Mh2 SO4 = 0,3 x 98 = 29,4 (g) ... (1): Khi 44g CO2 thoỏt l ó cú 100g CaCO3 b phõn hy 30g CO2 thoỏt l ó cú x g CaCO3 b phõn hy 30 ì100 68, x= = 68, 2( g ) , H = ì 100% = 80 , 2% 44 85 56 ì 30 = 38, 2( g ) b Khi lng CaO to thnh l: ... gam ( 0,25đ) Vậy m = 28, 4 + 6,4 = 34 ,8 gam (0,5đ) to FexOy +y H2 (0,5đ) xFe+ y H2O 0,4mol 0,4mol b/ mFe = 59,155 x 28, 4= 16 ,8 gam (0,5đ) =>Khối lợng oxi mO = 34 ,8 16 ,8 = 18 gam (0,5đ) Gọi công...
  • 139
  • 8,525
  • 20
Các đề thi tiếng anh luyện thi vào lớp 10 cực hay có keys

Các đề thi tiếng anh luyện thi vào lớp 10 cực hay có keys

Tiếng Anh

... to school Grade  77 The reason of his leaving early was that the room was very crowded  78 The teacher was angry They continued to walk in spite of the rain  80 He left early ... yesterday  68 Taking care of the garden _ Plane tickets are very expensive  75 I finally He spends two hours a week taking care of the garden  74 Not ... Which word whose underlined part is pronounced differently from the others? A plumber B some C luxury D consume A caused B power C shower D amount A advice B machine C Chinese D decide Which word...
  • 14
  • 3,730
  • 9
DE HSG TIENG ANH 8

DE HSG TIENG ANH 8

Tiếng anh

... housework after school Question VI: Give the correct form of the verbs in brackets( 10 ps) I‘ve decided (stop) …………… smoking I (visit) Singapore two years ago Look at those black clouds It (rain) ... presented the Statue of Liberty to the United States in 187 6 The Statue Question IX: Write complete sentences using the words given (8pts) 1.She/ math exam / Friday/ and she/ get up/ late ... 10 marks pressure failure anxiety relieved arrival destinations disappearance 10 endless Question I V: ( 10 marks ) His as was in was he 7D 8A A 9D 10D mountainous hospitable had and money 10...
  • 3
  • 5,963
  • 11
các đề HSG Lớp 8

các đề HSG Lớp 8

Toán học

... y 9; x, y ) => (x,y) cặp (2, 9); (3, 8) ; (4, 7); (5, 6); (6, 5); (7, 4); (8; 3) (9, 2) Thay lân lợt cặp vào (1) ta thấy ó x =8 y=3 thỏa mãn Vậy số cần tìm 83 Bài (2,0 điểm) Điều kiện: x -1 Ta ... =1/3 hay x = y = z = Bài (3,0 điểm) a (1,5 điểm) A N H M E F C B O Theo tính chất tiếp tuyến ta có OM, ON lần lợt phân giác góc 0,25 EOH, FOH 0,25 Tứ giác AEOF nội tiếp nên BAC + EOF = 180 o 180 o ... c,d thoả mãn a + b + c + d = Chứng minh rằng: a3 + b3 + c3 + d3 = 3(c+ d)(ab- cd) M= x 39 08 + x 39 58 c) Tìm GTLN biểu thức N = 1 + + Biết a ,b ,c 2 a + 2b + b + 2c + c + 2a + số dơng thoả mãn...
  • 12
  • 314
  • 0

Xem thêm