Đề tham khảo Anh 7 2

... (2) và (3) A. 45 o B. 60 o C. 68 o D. 75 o [Chọn A. Giải: - Khi ánh sáng đi từ (1) vào (2) : n 1 .sini = n 2 .sin r 2 = 2 2 n - Khi ánh sáng đi từ (1) vào (3): n 1 .sini = n 3 .sin r 3 = 3 2 2 ... D. 21 o 28 ’ [Chọn B. Giải: Khi D min thì i 1 = i 2 ⇒ r 1 =r 2 = A 2 =30 o . Tại I : sini 1 = n.sinr 2 = 2 sin30 o = 2 2 ⇒ i 1 = 45 o ]. Câu 17. Một lăng có chiết suất n, góc...

Ngày tải lên: 29/05/2013, 23:19

... 110 25 , 140 120 , 100 99 , 73 72 , 18 15 , 10 8 , 5 4 , 2 1 -Phỏn sọỳ tọỳigiaớn l : -Ruùt goỹn phỏn sọỳ coỡn laỷi l : : ... 2/ i cỏc n v o din tớch : 20 6 m 2 = ..dm 2 4 m 2 6 dm 2 = ..dm 2 ... m 2 6 dm 2 = ..dm 2 3800 cm 2 = .dm 2 5007cm 2 = dm 2 ..cm 2 3/ Tớnh : a/ =ì 3 2 : 9 4 8 5 b/ =+ 8 6 : 5 4 23 21 4/ Tỡm trung bỡnh cng ca ba s : . 6 1 ; 4 3 ; 2...

Ngày tải lên: 08/07/2013, 01:25

... (1.5pts) 25 . He likes ____________ coffee very much.( ice) 26 . She is very ____________. (beauty) 27 . ____________ they are going to visit the citadel. (final) 28 . I go ____________ every day.(jog) 29 . ... visit D. take 17. A. and B. with C. or D. but 18. A. to go B. go C. goes D. going 19. A. in B. for C. at D. of 20 . A. beach B. house C. yard D. lake 21 . A. in B. at C. with D....

Ngày tải lên: 07/08/2013, 01:25

... which are needed in a garden. ===== The end ===== 2 Phßng Gd Tam D¬ng ®¸p ¸n + híng dÉn chÊm ®Ò thi h.S.G líp 7- n¨m häc 20 06 -20 07 M«n thi: TiÕng Anh 7 I- Choose the word which has the underlined ... Phßng GD Tam D¬ng ----------------------- §Ò THI HäC SINH GIáI LíP 7 (20 06 -20 07) M«n thi: TiÕng Anh Thêi gian: 90 phót (Kh«ng kÓ giao ®Ò) I- Choose the word which has the under...

Ngày tải lên: 15/09/2013, 04:10

... ĐỀ KIỂM TRA 1 TIẾT Môn : Tiếng Anh 7 – Tuần 13 Tiết thứ : 39 - A I . Choose the correct answer . 1 . Which sentence ... book . 2 . They often ( go ) …………… to school by bike but now they ( walk ) ………… IV . Put the words in the right order . 1 . are / about / they / class / their / talking ……………………………………………………. 2 . ... are you doing ? -……………………… my english homework . A . I doing B . I a...

Ngày tải lên: 15/10/2013, 03:11

... I like my family very much. 17. A. am B. is C. are 18. A. My B. I C. Me 19. A. second B. two C. the second 20 . A. on B. in C. at 21 . A. These B. There C. They 22 . a. but B. and C. too Question ... room isn’t. My room is on the (19)__________ floor. (20 )____________ my room, there is a door and a window. (21 ) __________ is an old table (22 )___________ there are two chairs. There are s...

Ngày tải lên: 25/10/2013, 18:11

... himself 12. “Is 7. 15 OK ? “ - “ ___________________________ . “ a. See you at 7. 15 b. No problem. The concert starts at 7. 45 b. Let’s meet at 7. 15 d. Great. See you tomorrow evening at 7. 15 13. ... the ……………… (25 ), he worked far into the night ………………….. (26 ) with ways of transmitting speech over long distance. This led to the …………………( 27 ) of the telephone. Bell and his ………………….....

Ngày tải lên: 25/10/2013, 18:11

... I like my family very much. 17. A. These B. There C. They 18. A. am B. is C. are 19. A. on B. in C. at 20 . A. but B. too C. and 21 . A. one B. an C. both a and b 22 . a. floor B. table C. chair ... (19)____________ my room, there is a door (20 ) ____________ a window. There is (21 ) __________ old table and there are two chairs. There are some books on the table. On the (22 )___________,...

Ngày tải lên: 25/10/2013, 18:11

... best answer to fit each space 23 .A. am B. is C. are 24 .A. newspaper B. computer C. book 25 .A. in B. on C. at 26 .A. has B. travels C. is 27 . A. home B. work C. guitar 28 .A. In B. To C. At VI. Read ... ……………………………………………………………………………………………………………. 20 . What’s your mother’s job? ………………………………………………………………………………………………………...….. 21 . Is there a dishwasher in your kitchen? ………………………………………………...

Ngày tải lên: 04/11/2013, 16:11

... get c. receive d. leave 4. What‘s her telephone number? a. 6468 370 29 42 b. 6468 3 72 0 924 c. 6468 3 72 09 42 d. 6486 3 72 09 42 Question II (2. 5pts): Choose the correct answer to complete each sentence 5. ... ……………… (25 ) many experiments.He …………………… (26 ) demonstrated his invention ( 27 ) …………. the public at counless exhibitions, he invented the telephone. By 1 877 the first teleph...

Ngày tải lên: 04/11/2013, 16:11