Tài liệu chuyên tiếng anh 11 phần 1

Ngày tải lên: 15/12/2015, 03:07

Ngày tải lên: 01/04/2014, 14:42

Ngày tải lên: 15/12/2015, 03:06

... f(2) +1 = 2; f (10 02) =1; f (10 12) =2; f (11 02) =2; f (11 12) =3; f (10 002) =1; f (10 012 ) =2; … Bài toán dẫn đến phải tìm số có chữ số lớn biểu diễn số số nhỏ 19 94 Vì 19 94 < 211 – nên f(n) có nhiều 10 ... sau: 1, 372x − 4, 915 y = 3 ,12 3 2 .1 (Sở GD Đồng Nai, 19 98)  8,368x + 5, 214 y = 7, 318 13 ,241x − 17 , 436y = −25 ,16 8 2.2 (Sở GD Hà Nội, 19 96)  23,897x + 19 ,37...

Ngày tải lên: 30/11/2013, 14:11

... f(2) +1 = 2; f (10 02) =1; f (10 12) =2; f (11 02) =2; f (11 12) =3; f (10 002) =1; f (10 012 ) =2; … Bài toán dẫn đến phải tìm số có chữ số lớn biểu diễn số số nhỏ 19 94 Vì 19 94 < 211 – nên f(n) có nhiều 10 ... sau: 1, 372x − 4, 915 y = 3 ,12 3 2 .1 (Sở GD Đồng Nai, 19 98)  8,368x + 5, 214 y = 7, 318 13 ,241x − 17 , 436y = −25 ,16 8 2.2 (Sở GD Hà Nội, 19 96)  23,897x + 19 ,37...

Ngày tải lên: 30/11/2013, 14:11

... conjunctions (Liên từ phụ thuộc)là liên từ thường dùng để nối mệnh đề (thường câu hoàn chỉnh mang nghĩa chủ đạo câu)với mệnh đề phụ (thường câu chưa hoàn chỉnh nghĩa đứng mình) câu Có nhiều liên ... Ving? CONJUNCTIONS Conjunctions (liên từ) từ dùng để liên kết (nối) hai từ, hai cụm từ hai mệnh đề với Có loại liên từ là: coordinating conjunctions, correlative conjunctions, and subordinat...

Ngày tải lên: 13/12/2013, 19:15

... cho 2 010 29 Nguy n Văn Th o Chuyên ñ S H c - Ph n I Ví d Ch ng minh r ng 11 n+2 + 12 2n +1 chia h t cho 13 3 v i m i s t nhiên n L i gi i Ta có 11 n+2 + 12 2n +1 = 12 1 .11 n + 12 .14 4n = 13 3 .11 n + 12 (14 4n ... 11 11 i =1 i =1 Am = ∑ bi , An = ∑ ci Ta có Am – An ⋮ 2047 11 11 i =1 i =1 Mà Am − An = ∑ (bi − ci )ai = ∑ xi Vì bi, ci ∈ {0, 1} nên xi ∈ { -1, 0, 1} L i c...

Ngày tải lên: 19/02/2014, 05:20

Ngày tải lên: 30/03/2014, 07:38

... was terrible A B C C 24C/ The material is made from cotton is usually strong and hard-wearing A B C D (2 5-2 8) Use the correct form of the word given in each sentence: 25 What about to ... fossil fuels-petroleum, coal, and natural gas However, burning fossil fuels causes pollution Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty-first century .....

Ngày tải lên: 24/02/2014, 04:20

... 19 A In B For C From D With 20 A of B against C for D to 21 A such B so C very D so that (2 2- 2 4) Choose the underlined word or phrase that needs correcting: 22 I haven’t smoked ... tongue A B C D 24 C Why don’t we use energy- saving bulbs to reducing electricity? A B C D 24 D I was late for class this morning because my alarm clock didn’t ring off A B C D (2 5 -2 8) Use the corre...

Ngày tải lên: 24/02/2014, 04:20

... language 30 Zamenhof went to Moscow to improve Esperanto 31 His friends helped him to spread Esperanto 32 More and more people use Esperanto today (3 3- 3 6) Rewrite the ... before them: 33 I think you should apply for that job If 34 Because of her carelessness, Lan broke the glass Because Lan _ 35 BKAV is ... 18 A will B have C are D were 19 A floor B roof C side D wall 20 A bec...

Ngày tải lên: 24/02/2014, 04:20

... with short hair ( beauty ) 4 2- Telephone was Alexander Graham Bell’s He _ it in 18 90 ( invent) 4 3-. , I lost my keys on the way home ( fortune ) 4 4- Sit down and your ... (enjoyment) 4 5- It’s _for students to wear uniform at school (compel) 4 6- She disagreed with what we said (violent) 4 7- Dreams can be a rich source of for an artist (inspire) 4 8- If...

Ngày tải lên: 24/02/2014, 04:20

... that this is the location of the party Birthdays are also held at fast-food restaurants like Mc Donald’s or Pizza Hut, and there is always birthday cake for the party guests 17 18 19 20 21 22 ... it (modern) 31 Working with computers doesn’t come to most of us in the 21 st century (nature) 32 His _ as leader of the party was announced this morning (nominate) (3 3-3 6) Rewrite ... as m...

Ngày tải lên: 24/02/2014, 04:20

... fish (23) in such polluted dangerous (24) 17 A exhaust 18 A leads 19 A can’t be drunk 20 A one 21 A one 22 A on 23 A being caught caught 24 A grades waters Pollution ... carefully before taking an exam? I suggest the lessons 36 When did they first use this kind of energy-saving bulb? How long is THE END  ... somebody learning a foreign language makes mistakes _ (2 9-3 2) Use the cor...

Ngày tải lên: 24/02/2014, 04:20

... themselves had seen a UFO and man-like creatures on it The UFO was able to turn round, stop in mid-air and go up very quickly It flew at remarkably speed In 19 71 , two men claimed that aliens from ... things away because they can be making into new products A B C D 23 To take part active in this charity program, I suggest saving money and helping the poor in our neighborhood B C D A 24 I th...

Ngày tải lên: 24/02/2014, 04:20