nhi ơi
đề ở đâu thế

Mark the letter A, B, C, or  D on your answer sheet to show the underlined part that needs correction

I found my new(A)  contact lenses strangely at first, but I got used to them in the end

A. my new

B. strangely 

C. got used

D. in the end

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 35 to 42.

        According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the tamily, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.

        Although leaders are often thought to be people with unusual personal ubility, decades ot research have failed to produce consistent evidence that there is any category ot “natural leaders”. It seems that there is no set of personal qualities that all leaders have in common; rather, virtually any person may be recognized as a leader if the person has qualities that meet the needs ot that particular group.

        Furthermore, although it is commonly supposed that social groups have a single leader, research suggests that there are typically two different leadership roles that are held by different individuals. Instrumental leadership is leadership that emphasizes the completion of tasks by a social group.

        Group members look to instrumental leaders to “get things” done.” Expressive leadership, on the other hand, is leadership that emphasizes the collective well-being of a social group’s member. Expressive leaders are less concerned with the overall goals of the group than with providing emotional support to group members and attempting to minimize tension and conflict among them. Group members expect expressive leaders to maintain stable relationships within the group and provide support to individual members.

                   Instrumental leaders are likely to have a rather secondary relationship to other group members. They give orders and may discipline group members who inhibit attainment of the group’s goals. Expressive leaders cultivate a more personal or primary relationship to others in the group. They offer sympathy when someone experiences difficulties or is subjected to discipline, are quick to lighten a serious moment with humor, and try to resolve issues that threaten to divide the group. As the differences in these two roles suggest, expressive leaders generally receive more personal affection from group members; instrumental leaders, if they are successful in promoting group goals, may enjoy a more distant respect

The word “collective” in the third paragraph is closest in meaning to _________.

A. necessary         

B. typical     

C. group     

D. particular

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 35 to 42.

Though called by sweet–sounding names like Firinga or Katrina, tropical cyclones are huge rotating storms 200 to 2,000 kilometers wide with winds that blow at speeds of more than 100 kilometers per hour (kph). Weather professionals know them as tropical cyclones, but they are called hurricanes in the Caribbean Sea, typhoons in the Pacific Ocean, and cyclones in the Indian Ocean. They occur in both the northern and southern hemispheres. Large ones have destroyed cities and killed hundreds of thousands of people.

Tropical cyclones begin over water that is warmer than 27 degrees Celsius (80 degrees Fahrenheit) slightly north or south of the earth’s equator. Warm, humid air full of water vapor moves upward. The earth’s rotation causes the growing storm to start to rotate around its center (called the eye). At a certain height, the water vapor condenses, changing to liquid and releasing heat. The heat draws more air and water vapor upward, creating a cycle as air and water vapor rise and liquid water falls. If the cycle speeds up until winds reach 118 kilometers per hour, the storm qualifies as a tropical cyclone.

Most deaths in tropical cyclones are caused by storm surge. This is a rise in sea level, sometimes seven meters or more, caused by the storm pushing against the ocean’s surface. Storm surge was to blame for the flooding of New Orleans in 2005. The storm surge of Cyclone Nargis in 2008 in Myanmar pushed seawater nearly four meters deep some 40 kilometers inland, resulting in many deaths.

It has never been easy to forecast a tropical cyclone accurately. The goal is to know when and where the next tropical cyclone will form. “And we can’t really do that yet,” says David Nolan, a weather researcher from the University of Miami. The direction and strength of tropical cyclones are also difficult to predict, even with computer assistance. In fact, long–term forecasts are poor; small differences in the combination of weather factors lead to very different storms. More accurate forecasting could help people decide to evacuate when a storm is on the way.

The word “evacuate” in paragraph 4 mostly means ______.

A. move to safer places

B. make accurate predictions

C. take preventive measures

D. call for relief supplies

Một hỗn hợp X gồm C₂H₄, C₃H₆, CH₄ và C₂H₂ trong đó số mol CH₄ bằng 2 lần số mol C₂H₂. Đốt cháy hoàn toàn 0,1 mol hỗn hợp X thu được 9,02 gam CO₂ và 3,87 gam H₂O. Cho 0,1 mol hỗn hợp X phản ứng tối đa với a gam Br₂ trong dung dịch. Giá trị của a là

A. 14,4.     

B. 16,0.       

C. 17,6.      

D. 12,8.

Nhúng quỳ tím lần lượt vào các dung dịch chứa các chất riêng biệt sau: (1) metyl amin; (2) glyxin; (3) lysin; (4) axit glutamic. Số dung dịch làm quỳ tím hóa xanh là

A. 3

B. 4

C. 1

D. 2

Cho CH₃CH₂CHO phản ứng với H₂ (xúc tác Ni, đun nóng) thu được

A. CH₃CH₂OH

B. CH₃CH₂CH₂OH.

C. CH₃COOH.

D. CH₃OH.