Cho tam giác ABC có AB = AC. Tia phân giác của góc A cắt BC tại M. Trên tia đối của tia MA lấy điểm D sao cho MD = MA . Chứng minh :

             a) MB = MC                               b) AB // CD                                 c) AM  BC

* Bài 8:    TÍNH CHẤT CỦA DÃY TỈ SỐ BẰNG NHAU

            Câu hỏi :   Chọn câu trả lời đúng

   1/  Cho   ;  a + b - c = - 8   thì :

            A.  a = - 22 ; b  = - 30 ; c = - 60                              B.  a = 22 ; b = 30 ; c = 60

            C. a = - 22 ; b = - 30 ; c = - 44                                D.  a = 22 ; b = 30 ; c = 44

   2/  Ba số a ; b ; c tỉ lệ với các số 3 ; 5 ; 7 và b - a = 20 . Điền vào chỗ trống :

            A. Số a bằng .......                  B. Số b bằng .......             C.  Số c bằng .......

   3/ Số điểm 10 trong kì kiểm tra học kì I của  ba bạn Tài, Thảo , Ngân tỉ lệ với 3 ; 1 ;2 . Số điểm 10  của cả  ba bạn  đạt được là  24 . Số điểm 10 của bạn Ngân  đạt được là

            A.  6                            B.  7                             C  8                                        D. 9 

   4/ Biết rằng  x : y = 7 : 6  và  2x - y  = 120  . Giá trị của x và y  bằng :

            A. x = 105 ; y = 90               B  x = 103 ; y = 86               C.x = 110 ; y = 100              D. x = 98 ; y = 84

I. Choose the correct answer A, B, c or D to fill each blank in the following passage.

I have a very interesting and (46)______ hobby. I make short video clips with my digital camera. It was my birthday present from my parents last year. Since then, I have (47)______ three short films. It’s great fun! I started asking my friends and relatives to take (48)______ in the films. I have tried to write the story for my video clips. When I have finished the script, I make copies for the “actors”. Each scene is small and they can look at the words just (49)______we start filming. We film at the weekend in my neighbourhood, (50)_______no one has to travel far. When the video clip is finished, I invite all the “actors” and we watch the film at my house.

46. A. enjoy                   B. enjoyed                      C. enjoying                                        D. enjoyable

47. A. done                              B. played                        C. made                                   D. watched

48. A. part                     B.role                             C. scene                                   D. film

49. A. before                  B. after                           C. only                                     D. until

50. A. although              B. because                      C. but                                             D. so

MN ơi giúp mình với

Choose the word whose main stress pattern is not the same as that of the others.

42:  A. pagoda               B. rubbish            C. homeless                  D. money

43:  A. pancake              B. traffic               C. collect             D. college

44:  A. allergy                B. diet                       C. donate              D. portrait

45:  A. turmeric             B. pagoda               C. pancake                    D. temple

Giúp mình với

32: After working on computers for long hours, you should             your eyes and relax.

           A. sleep                B. sleep in           C. wake                              D. rest

          33: Watching too much television is not good                you or your eyes.

           A. with                 B. to                    C. at                                    D. for

34: A: "This weekend I'm going to the orphanage to teach the children there."

    B: " I ................ you."

A. am going join    B. join                   C. will join                             D. have joined

35: 1. People in the countryside have less stress, ................ they usually live longer.

A. so                      B. and                    C. but                                D. or

36:  The………….for Pho Bo is made by stewing cow bones

A. sweet soup      B. sausage            C. omelette                     D. broth

37: Drinking 2 to 3 cups of….. a day may bring you a lot of health benefits

A. ham                 B. sauce                C. green tea                    D. broth

38. My cousin, Mai, is the same age…………………me

A. like                  B. to                     C. of                               D. as

39. I never watch ballet, and my sister doesn’t…………..

A. too                            B. so                     C. either                         D. like that

40: How many houses __________ by the storm last night?

A. are destroyed   B. were destroyed         C. was destroyed           D. is destroyed

41: A lot of phone calls _________ every day.

A. is received         B. are received    C. was received              D. were received

26: Water puppetry_________ in the 11th century in the villages of the Red River Delta of North Viet Nam.

A. start                 B. begin                C. originated               D. formed

          27: They                to Ha Noi several times, but last summer they              there by train.

          A. flew – went        B. has flown - went      C. have flown - have gone    D. have flown – went

          28: My brother and I                a white tiger already.

           A. have seen         B. has seen          C. see                              D. are seeing

          29: “Have you ever                  to New York?”

           A. gone                B. been                 C. seen                             D. visited

          30: I love my sister’s paintings because she is very                 in using colours.

            A. careless           B. care                 C. creative                          D. imagine

          31: Do more exercise                eat more fruit and vegetables.

            A. but                  B. or                    C. and                                D. so

21: We ____ 2 hours reading Physics books yesterday.

A. spent               B. spend               C. was spent               D. had spend

22: John was reading a book when I ____ him.

A. seen                 B. had saw           C. had seen                         D. saw

23: Yesterday, I _____ to the restaurant with a client.

A. gone                B. go                    C. went                       D. was gone

24: What ___ you do last night?

A. did                  B. do                    C. will                         D. should

25: Classical music is not __________ as pop music.

A. as exciting       B. as excited                  C. exciting                   D. more excited

26: Water puppetry_________ in the 11th century in the villages of the Red River Delta of North Viet Nam.