Một hình trụ có bán kính đáy là r. Gọi O, O' là tâm của hai đáy với O O ' = 2 r .  Mặt cầu (S)tiếp xúc với hai đáy của hình trụ tại O và O'. Phát biểu nào dưới đây sai?

A. Diện tích mặt cầu bằng diện tích xung quanh của hình trụ

B. Diện tích mặt cầu bằng 2/3diện tích toàn hình trụ

C. Thể tích khối cầu bằng 2/3thể tích khối trụ

D. Thể tích khối cầu bằng  3/4 thể tích khối trụ

Yuri Gagarin was the first person __________into space

A. has traveled

B. traveling

C. traveled

D. to travel

Hàm số y = x 4 + 8 x 3 + 5  nghịch biến trên khoảng nào dưới đây?

A.  0 ; + ∞  

B.  − ∞ ; − 6

C.  − 6 ; 0

D.  − ∞ ; + ∞  

Một nguyên hàm của  f x = 2 x − 1 e 1 x là F x = a x 2 + b x + c + d x e 1 x .  Tính  a + b + c + d

A. 1

B. 3

C. 0

D. 2

Yếu tố nào sau đây quyết định điều kiện để có tiếng vang?

A. Tần số của âm

B. Độ to của âm

C. Khoảng cách từ nguồn âm đến vật phản xạ âm

D. Độ trầm, bổng của âm

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Application for admission to the Graduate School at this university must be made on forms provided by the Director of Admissions. An applicant whose undergraduate work was done at another institution should request that two copies of undergraduate transcripts and degrees be sent directly to the Dean of the Graduate School. Both the application and the transcripts must be on file at least one month prior to the registration date, and must be accompanied by a non-refundable ten-dollar check or money order to cover the cost of processing the application.

Students who have already admitted to the graduate School but were not enrolled during the previous semester should reapply for admission using a special short form available in the office of the Graduate School. It is not necessary for students who have previously been denied admission to resubmit transcripts; however, new application forms must accompany all requests for reconsideration. Applications should be submitted at least eight weeks in advance of the session in which the student wishes to enroll. Students whose applications are received after the deadline may be considered for admission as non-degree students, and may enroll for six credits hours. Non degree status must be change prior to the completion of the first semester of study however.

An undergraduate student of this university who has senior status and is within ten credit hours of completing all requirements for graduation may register for graduate work with the recommendation of the chairperson of the department and the approval of the Dean of the Graduate School.

Students who have already been admitted to the Graduate School

A. never need to apply for readmission.

B. must reapply if they have not been registered at the university during the previous semester.

C. must reapply every semester.

D. must reapply when they are within ten credits hours of graduation.

Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

A. banned

B. cleared

C. kissed

D. raised

ĐỀ 1

I. Chọn từ có gạch chân có phát âm khác với các từ còn lại. (1.5 điểm)

1. A. typhoon B. deny C. sky D. compulsory

2. A. grocery B. casual C. concert D. occasion

3. A. application B. citizen C. curly D. comment

4. A. hat B. that C. flat D. game

5. A. ninth B. fifth C. therefore D. youth

6. A. surround B. amount C. scout D. anxious

II. Chọn đáp án đúng nhất trong A, B, C hoặc D để điền vào chỗ trống. (2 điểm)

1. She asked me where I _______ from. A. to come B. came C. come D. coming

2. The traditional dress of Japanese women is ________. A. Kimono B. Ao Dai C. Sari D. Jeans

3. We stayed at home ________ it rained heavily. A. and B. because C. so D. but

4. If you want to get good marks, you must _________ hard. A. studying B. study C. studies D. studys

5. They will come here __________ 11.30 AM. A. at B. between C. in D. on

6. Lan got up late, __________ he couldn’t catch the first bus. A. then B. so C. as D. when

7. You have read this article on the website, __________? A. do you B. have you C. haven`t you D. did you

8. The teacher asked me __________ the passage into Vietnamese. A. to translate B. translates C. translating D. translate

9. How much time do you spend __________ on the web a day? A. posting B. to surf C. surfing D. using

10. I __________ Tom’s brother recently. A. haven`t seen B. didn`t see C. hasn`t seen D. saw

III. Mỗi câu dưới đây có một lỗi sai, tìm lỗi sai trong mỗi câu. (1.5 điểm)

1. I asked them if they teach other foreign languages besides English. A. if B. teach C. other D. besides

-> taught

2. The teacher asked me why am I learning English. A. The B. me C. why D. am I

-> I am

3. Your friends went to your native village last weekend , weren’t they? A. Your friends B. native village C. last D. weren’t they

-> didn't they

4. Lan wishes that she can go to Singapore to visit her penpal. A. wishes B. can go C. to visit D. penpal

->could go

5. She has lived in Qui Nhon since four years. A. has lived B. in C. since D. years

-> for

IV. Chia dạng đúng của từ trong ngoặc. (2 điểm)

1. Please give the handicapped some considerations when building stairs. (consider)

2. Mr. Lim has been having finally problems for a long time. (finance)

3. She displayed her will to help him by giving him a cheque. (willing)

4. More local novelties (cái này chắc 55 % ) are getting recognition for their work. (novel)

5. Can I have an extension on the dateline of my project? (extend)

6. It was coincidental (50%) that both our birthdays fell in the same day. (coincide)

7. A nursemaid for children has just opened near my workplace. (nurse)

8. Angie is quite toleration of the screaming of her children. (tolerate)

V. Đọc đoạn văn dưới đây và chọn câu chứa nội dung thông tin đúng trong bài. (1.5 điểm)

Do you like seasons? The four seasons in Britain are very different. Read about what Daniel and Fiona think about winter, spring, summer and autumn. Daniel, Autumn is very beautiful time of the year. The leaves on the trees go brown, red and yellow and they go down. I love to watch it! We play in the parks a lot but we wear warm clothes, because the days get cold. School starts again in autumn

Cho a, b > 0 thỏa mãn điều kiện a + b + ab = 1, giá trị nhỏ nhất của P = a 4 + b 4   l à   x ( x - y ) 4   ( x , y ∈ N ) . Giá trị của x + y là

A. 3

B. 5

C. 7

D. 9