... nngE = 22221 1os ( ) 2 2mv m A c t = + 2 km= =>E = 22 1 os ( ) 2 kA c t +E = 222 20 1 1os ( ) 2 2mv m c t = + 2 gl= =>E = 2 20 1 os ( ) 2 mg c tl ... * Nếu hai dao động x 1 và x 2 cùng phơng, cùng tần số thì: x = x 1 + x 2 = Asin(t + )Trong đó: A 2 = A 1 2 + A 2 2 + 2A 1 A 2 cos( 2 - 1 )và tg = 2 21 12 21 1 coscossinsinAAAA+++ ... - 2 x* Vì E = Et + Eđ trong đó: Et = 2 1 kx 2 = 2 1 k A 2 sin 2 (t + ) (con lắc lò xo)Eđ = 2 1 mv 2 = 2 1 m 2 mx 2 cos 2 (t + ) = 2 1 k 2 mxcos 2 (t + ) E = 2 1 k 2 mx...
... ORDERING 1. the eat baby she made the all food ……………………………………………………………………… 2. has the the teacher students answer and exercise 3 his questions do ……………………………………………………………………… 3. Someone ... ……………………………………………………………………… VI. CORRECT IF IT IS UNSUITABLE 1. While I had a bath, someone knocked on the door 2. Sally didn’t go to a football match before 3. Harry tried to repair the car, but he didn’t ... WORDS GIVEN IN BRACKET 1. The teacher allowed me to stay at home to finish the assignment( The teacher let) The teacher let me stay at home to finish the assignment 2. The boy ran away from...
... parents didn’t let 19 .We can’t possibly work in this noise.It’s impossible Đỗ Thị Quỳnh Hương - Chu Văn An high School.Revision of Unit 1, 2, 3 Phần Tự Luận.Revision of unit 1, 2, 3 I. Choose the ... clothing 10 .a. machine b. change c. teacher d. choose 11 .a. condition b. option c. suggestion d. relation 12 .a. believe b. readily c. friend d. pleasure 13 .a. good b. gossip c. game d. geometry 14 .a. ... Revision of Unit 1, 2, 3 Phần Tự Luận. 17 .She had been briefly acquainted ______ him more than 20 years earlier. 18 .She thought _________ him very often. 19 .Some people take __________...
... me…………………………………………………………………………………………… 10 . “ Where do you live?” => She asked me …………………………………………………………………………………………… 11 . “ What school are you going to?”=> She …………………………………………………………………………………………… 12 . “How many languages ... ……………………………………………………………………………. 22 . “I’m going to work in Spain next year. “ My sister said………………………………………………………………… 23 . “ We don’t have much time to enjoy ourselves.” They said………………………………………………………………… 23 . It’s……………………………to ... lived/ has lived) 31 . My car……………………….yesterday. ( repairs/ repaired/ is repaired/ was repaired) 32 . Must this test ………………………….on time. ( finish/ finished/ be finished/ be finish) 33 . The Ao Dai...
... time? 10 . They (not play) at this moment. 11 . You ever (eat) at this before? 12 . We (learn) this tense already. 13 . I (just meet) her at the school gate. 14 . We (learn) English since 20 00. 15 . ... hot. 10 . I used………… (smoke) 20 cigarettes a day, but now I give up………… (smoke). 11 . We decide…………… (rent) a house with a swimming pool. 12 . Can you help me…………… (get) the dinner ready? 13 . When ... home? 10 . They had their house (paint) before Tet holidays. 11 . We had a good time (work) with the Foreigners. 12 . She is always busy (do) housework. 13 . It's no use (advise) him. 14 . You...
... 3/ 3 - Mã đề thi 35 7Mỹ Quí High School TEST 45’ ENGLISH 11 (lần 1 HKI)Name: ____________________________ ĐỀ: 35 7Class: _________ 123 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ... 22 23 24 25 26 27 28 29 30 31 32 Phonetics: Choose the answer that has different stressed syllable or pronunciation from therest.Câu 1: A. practiced B. cooked C. stretched D. exploredCâu 2: ... of.Câu 28 : A. known B. friends C. meet D. introducedCâu 29 : A. had B. lost C. saw D. tookCâu 30 : A. sorry B. bored C. proud D. angryCâu 31 : A. a lot B. foward C. happy D. muchCâu 32 : A. interested...
... operating 8. to bring 9. to switch off 10 . to use Ôn tập ngữ pháp cơ bản TiếngAnh -1 LESSON 1: VERB FORMS (V-ing/ To V) 1. Gerund (V-ing) a. Thông thường theo sau các động từ như ... taking 7. A. to relax 8. B. working 9. A. to be 10 . A. totake II/ Write the correct form of a verb from the box in each blank. 1. working 2. learning 3. to take 4. helping 5. playing 6. not to ... classroom. 10 . Teacher to students: You are not allowed__________ this door. ANSWER KEY EXERCISES (V-ing/ To V) I/ Choose the correct word to complete each sentence 1. A. to use 2. A. to give 3. ...