m.n giups e mấy bài đọc với ạ

TEST 1

To do well at school, college or university you usually need to do well in exams. “All students hate exams” may be a generalization, but it is fairly true one. Certainly, all of the students I’ve known disliked doing exams, None of them thought that the exam system was fair; to do well in a exam you simply had to be able to predict the questions which would be asked, This was the case as regards tow students in my class at college. Botyh of them were exceptionally bright, but in the final year “exam” neither of them got an a grade. In fact, they both got Cs. The exam had tested us on questions which had come up the previous year. They had both assumed that the same questions wouldn’t come up again, and hadn’t prepared for them.

1) Students need to do well in exams __________.

a. In order to do well at school.

b. Because they need to do well at school.

c. So that to do well at school.

d. Therefore they have to do well at school.

2) The stastement “ All students hate exams” is _________.

a. extremely true b. completely true

c. quite true d. very true

3) Which of the following sentences is not true?

a. All of the students the writer has known thought that the exam system was unfair.

b. To do well in an exam you simly had the ability to predict the questions which would be asked.

c. None of the students the writer has known disliked doing exams.

d. “ All students hate exams” is fairly true generalization.

4) Why did the two students in the writer’s class get C grades in the final exam?

a. Because the exam was very difficult.

b. Because they didn’t prepare for the questions that had come up the previous year.

c. Because they were dull students.

d. Because the questions weren’t in their lesson.

5) The writer’s main purpose of writing the passage is to _________________________.

a. describe the importance of exams.

b. discuss how exams effect on the students.

c. explain the equality in examinations.

d. criticize the exam system.

TEST 2

Every year people in many countries learn English. Some of them are young children. Others are teenagers. Many are adults. Some learn at school. Others study by themselves. A few learn English just by hearing the language in film, on television, in the office or among their friends. Most people must work hard to learn English.

Why do these all people learn English? It is not difficult to answer this question.

Many boys and girls learn English at school because it is one of their subjects. Many adults learn English because it is useful for their work. Teenagers often learn English for their higher studies because some of their books are in English at the college or university. Other people learn English because they want to read newspapers or magazines in English.

1. According to the writer. English is learn by _____________.

a. young children b. adults

c. teenagers c. all are correct

2. Most people learn English by ____________.

a. themselves b. hearing the language on television

c. working hard on the lesson d. speaking English to their friends

3. Where do many boys and girls learn English?

a. at home b. in the office

c. in evening class d. at school

4. Teenagers learn English because ___________.

a. It’s useful for their higher studies b. it’s one of their subjects.

c. They want to master it. D. a and c are correct.

5. Why do many adults learn English?

a. Because they want to see movies in English.

b. Because they need it for their job.

c. Because they are forced to learn.

d. Because it’s not difficult to learn.

1) cho hai số thực dương x,y thỏa nãm x+y =1 tìm min của S= \(\dfrac{1}{x}+\dfrac{4}{y}\)

2) cho hai số thực x,y thỏa mãn \(x^2+y^2-3\left(x+y\right)=-4\) tập giá trị của biểu thức S= x+y bằng bao nhiêu

quần đảo

SSH là : ( 9 - 1 ) x 1 + 1 = 9

Tổng là : ( 9 + 1 ) x 9 / 2 = 45

Đáp số : 45

trong tự nhiên Cu có 2 đồng vị \(|^{63}_{29}\) Cu và \(|^{65}_{29}\) Cu khối lượng trung bình của Cu là 63,54. Thành phần % về khối lượng của \(|^{63}29\) trong CuCl2 là bao nhiêu?

nguyên tố Cu có nguyên tử khối trung bình là 63,54 có 2 đồng vị X và Y biết tổng số khối là 128. Số nguyên tử đồng vị X = 0,37 số nguyên tử đồng vị Y số notron của đồng vị Y hơn số notron của X là bao nhiêu?

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:

My grandparents’ lake house was built in 1953. It was completely destroyed by the forest fire

A. My grandparents’ lake house was built in 1953; however, completely destroying the forest fire

B. My grandparents’ lake house, which was built in 1953, was completely destroyed by the forest fire

C. My grandparent’s lake house was built in 1953, so it was completely destroyed by the forest fire

D. The forest fire destroyed my grandparent’s lake house was built in 1953

Nhóm thực vật nào có chu trình Canvil?

A. Chỉ có nhóm thực vật C 3 .

B. Chỉ có nhóm thực vật C 4 .

C. Chỉ có nhóm thực vật CAM.

D. Có cả ở 3 nhóm trên.

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.

          An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.

          Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities.

          However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

It can be inferred from the first paragraph that _________.         

A. water vapor is an air pollutant in localized areas     

B. the definition of air pollution will continue to change  

C. most air pollutants today can be seen or smelled

D. a substance becomes an air pollutant only in cities