Choose the word whose underlined part is pronounced differently from that of the others in each group.

1. A. southern B. feather C. there D. breath

2. A. beloved B. prepared C. retired D. improved

3. A. spread B. dealt C. heat D. dream

Cho các chất sau: S, SO₃, H₂SO₄, SO₂ , Na₂SO₄ hãy sắp xếp thành một chuỗi phản ứng và viết phương trình phản ứng để hoàn thành chuỗi đó.

Cho đường tròn (O; R) và một điểm S ở ngoài đường tròn (O; R). Từ điểm S kẻ hai tiếp tuyến SA, SB tới (O; R) (A và B là các tiếp điểm). Kẻ dây cung BC song song với SA; SC cắt đường tròn (O; R) tại điểm thứ hai là D; tia BD cắt SA tại điểm M.

1. Chứng minh MA² = MD.MB

2. Gọi I là trung điểm đoạn DC. Chứng minh năm điểm S, B, I, O, A cùng thuộc một đường tròn và tia IS là phân giác của góc BIA.

3. Qua điểm I kẻ đường thẳng song song với AC cắt AB tại E. Chứng minh ED // BC

4. Giả sử BM ^ SA, khi đó hãy tính bán kính đường tròn ngoại tiếp ΔSDA theo R.

Cho hai biểu thức: A = và B = với x ≥ 0; x ≠ 1

1. Tính giá trị của biểu thức A khi x =

2. Chứng minh rằng:

3. Với điều kiện x ≥ 0, x ≠ 1, tìm tất cả các giá trị m để phương trình = m có nghiệm x

: Để máy phát điện xoay chiều có thể hoạt động được, ta phải cung cấp cho nó năng lượng dưới dạng nào và dùng vào việc gì?

A. Hóa năng để chuyển hóa thành điện năng

B. Cơ năng để làm quay rôto

C. Nhiệt năng để làm nóng máy lên, sinh ra điện

D. Điện năng để tạo ra dòng điện

I. MULTIPLE CHOICE: (8 points )

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions from 1 to 2.

Question 1: A. obtain B. obstacle C. advance D. absorb

Question 2: A. honest B. home C. vehicles D. heiress

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions from 3 to 4.

Question 3: A. participate B. hydrology C. facilitate D. intimacy

Question 4: A. romantic B. financial C. popular D. reduction

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions from 5 to 7.

Question 5: Harry, alike his colleagues, is trying hard to finish his work early.

A B C D

Question 6: You can apply for a better job when you will have had more experience.

A B C D

Question 7: He is the best-known author I have never heard of.

A B C D

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions from 8 to 16.

Question 8: He went to the office ________ check the progress of the work.

A. in order to B. so far as C. for the purpose D. by the reason

Question 9: She asked me ________ to another country in the region.

A. weather I had been B. if I had been C. I had been D. had I been

Question 10: ________ have you been able to play the piano?

A. When B. How many times C. Since when D. Why

Question 11: It's no use ________ make him change his mind.

A. trying to B. to try to C. trying and D. to trying to

Question 12: He fell off the tree and ________

A. was bad injured B. badly injured

C. was badly injured D. was injured himself badly

Question 13: When did ________ talk to him?

A. you lastly B. you last C. you lately D. you late

Question 14: ________ appears considerably larger at the horizon than it does overhead is merely an optical illusion.

A. The Moon B. That the Moon C. When the Moon D. The Moon which

Question 15: Everyone expects Johnson to _______ Smith in today’s final.

A. beat B. win C. score D. champion

Question 16: Let’s face _____ we are destroying the environment and we need to do something now.

A. truth B. facts C. things D. information

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges from 17 to 18.

Question 17: “Would you pick the kids up from school this afternoon?” - “No, I am afraid I ______”

A. wouldn’t B. can’t C. shan’t D. don’t

Question 18: “Good morning, could I speak to Mr. David, please?”; “____”

A. He’s in a meeting. Can I take a message?

B. Probably by Monday next week.

C. I’ll have to ask the person you want to ring first.

D. Certainly. Would two o’clock be OK.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions from 19 to 20.

Question 19: The Yugo was considered one of the safest and most dependable cars on the road in Slovakia, until people started importing cars from abroad.

A. swift B. enjoyable C. reliable D. exciting

Question 20: He was able to incorporate a multimedia slideshow into the lesson plan despite the school’s lack of equipment because his friend lent him a multimedia projector.

A. propose B. determine C. bestow D. include

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions from 21 to 22.

Question 21: Travel insurance is sometimes mistaken for temporary health insurance, but the two are actually different.

A. transitory B. passing C. mutable D. permanent

Question 22: Although they hold similar political views, their religious beliefs present a striking contrast.

A. interesting resemblance B. complete coincidence

C. significant difference D. minor comparison

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27.

After a tour in Cu Chi, we are moving to Mot Thoang Vietnam craft village (23) ___________ at Phu Binh Village, Ho Chi Minh City. Arriving at Mot Thoang Vietnam, we observe on-the-spot (24) ___________ craft persons weave tho cam (ethnic brocade fiber), (25) ___________ wooden logs into wonders and weave rattan into home appliances. Mot Thoang Vietnam can (26) ___________ your need to know what many of Vietnam’s traditional craft villages are like. The quarter of craft villages at Mot Thoang Vietnam is quiet, but not boring (27) ___________ craft persons chat amidst the clacking sound of wooden cudgels hitting a chisel caused by a sculptor or a loom used for weaving cloth.

Question 23: A. located B. locating C. locate D. locates

Question 24: A. what B. how C. whether D. why

Question 25: A. knit B. cast C. weave D. carve

Question 26: A. satisfy B. buy C. make D. stop

Question 27: A. although B. while C. whereas D. as

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 from 28 to 32.

Upon the creation of the United States, one of the core concepts on which the hopes for the new democracy were pinned was the ideal that its citizens would be enlightened individuals with clearly articulated rights and the opportunity for individual achievement and education. It was believed that in a free nation where the power belongs to the people, the commitment to education defines the progress of that democracy and is the catalyst for future progress. This core value has not only stood the test of time but has also grown in importance.

In this new Information Era and international economy, education is an increasingly vital commodity, a precursor of potential success and a driving force of chance. It is important to recognize, however, that we approach education today differently than in the past, partly because the kinds of jobs people had didn’t require the kind of basic education and specialized training that is often required in the workforce today. In the 1950s, for instance, only 20 percent of American jobs were classified as professional, 20 percent as skilled; and 60 percent as unskilled. Today, our world has changed. The proportion of unskilled jobs has fallen to 20 percent, while jobs now account for at least 60 percent of the workforce. Even more important, almost every job today increasingly requires a combination of academic knowledge and practical skills that require learning throughout a lifetime.

Question 28: Education is defined in this passage as a driving force of chance because ___________

A. without education, no changes could have happened in American society so far.

B. the government of the United States wants to drive social changes in their own ways.

C. education has helped to bring about and orient most changes in the American workforce.

D. any American citizen who wants to changes his driving license must be very well-educated.

Question 29: The passage shows the percentage of jobs that require higher training in the US__________ between 1950s and now.

A. has remained the same B. has changed dramatically

C. has been reversed D. has changed slightly

Question 30: The phrase “enlightened individuals” in the first sentence most likely means “people who ____________.”

A. always appear brilliant-looking in public B. have often been well-exposed to light

C. have acquired an adequate level of education D. bring light to anywhere they go

Question 31: In order to become a good American citizen today, in the author’s point of view, any individual must ___________

A. know well all his/her rights and be ready to grasp his/her opportunity of success in life

B. study carefully the history of American educational and vocational systems even since their creation

C. understand thoroughly the combination of academic knowledge and practical skills

D. move actively forward in the new Information Era and international economy with a prestigious diploma

Question 32: Which of the following titles would be best for the passage?

A. Education and Jobs in the Past and at Present in the United States.

B. The Significant Role of Education in American Citizens’ Careers

C. Academic Knowledge and Practical Skills in American Professions

D. Recent Changes of Educational and Vocational Systems in America

Mark the letter A, B, C or D on your answer sheer to indicate the sentence that has the same meaning as the sentence printed before it.

Question 33. No one has seen Linda since the day of the party.

A. Linda hasn't been seen since the day of the party.

B. This is the first time Linda has ever had a party.

C. The party is going on without Linda.

D. Linda hasn't seen anyone at the party.

Question 34. Although the sky was cloudy, they took many photos.

A. Because of the cloudy sky, they took many photos.
B. The sky was too cloudy for them to take many photos.
C. The sky was cloudy, so they didn't take many photos.
D. Despite the cloudy sky, they took many photos.

Question 35. Unless you take any exercises, you will feel unhealthy.

A. If you aren’t take any exercises, you will feel unhealthy.

B. If you didn’t take any exercises, you will feel unhealthy.

C. If you don’t take any exercises, you will feel unhealthy.

D. If you take any exercises, you will feel unhealthy.

Question 36. The air here is too polluted for us to breathe.

A. The air here is so polluted that we can’t breathe it.

B. The air here is polluted that we can’t breathe.

C. The air here is so polluted that we can’t breathe.

D. The air here is such polluted that we can’t breathe it.

Question 37. I have never eaten this kind of food before.

A. This is the first time I ate this kind of food.

B. This is the first time I have never eaten this kind of food.

C. This is the first time I eat this kind of food.

D. This is the first time I have ever eaten this kind of food.

Question 38. Janet said to me, “Have you ever seen a UFO?”

A.Janet told me if I had ever seen a UFO

B.Janet wanted to know whether I have ever seen a UFO

C.Janet asked me if I had ever seen a UFO

D.Janet asked me have I ever seen a UFO

Question 39. It was such a beautiful painting that everyone wanted to buy it.

A. The painting was not beautiful enough for everyone to buy.

B. The painting was so a beautiful that everyone wanted to buy it.

C. The painting was beautiful enough that everyone wanted to buy it.

D. The painting was so beautiful that everyone wanted to buy it.

Question 40. No one has asked me that question before.

A.That question has ever been asked me by no one before.

B.That question has never been asked me before by anyone.

C.I have not ever been asked that question before.

D.I have never been asked that question before.