I'm taking a test and have to guess the right answer to the question after the article. Article: A few degrees can make a big difference when it comes to food storage.Foods can go bad if they get too warm.But for many of the world's poor, finding a good way to keep food cool is difficult.Refrigerators are costly and they need electricity. Yet spoiled food not only creates health risks but also economic losses.Farmers lose money when they have to throw away products that they cannot sell quickly. But in nineteen ninety-five a teacher in northern Nigeria named Mohammed Bah Abba found a solution.He developed the "Pot-in-Pot Preservation/Cooling System." It uses two round containers made of clay.A smaller pot is placed inside a larger one.The space between the two pots is filled with wet sand.The inner pot can be filled with fruit, vegetables or drinks.A wet cloth covers the whole cooling system. Food stored in the smaller pot is kept from spoiling through a simple evaporation process.Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving.The evaporation process creates a drop in temperature of several degrees.This cools the inner pot and helps keep food safe from harmful bacteria.Some foods can be kept fresh this way for several weeks. People throughout Nigeria began using the invention.And it became popular with farmers in other African countries.Mohammed Bah Abba personally financed the first 5,000 pot-in-pot systems for his own community and five villages nearby. In 2000, the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise.This award recognizes people trying to develop projects aimed at improving human knowledge and well-being.A committee considers projects in science and medicine, technology, exploration and discovery, the environment and cultural history.Winners receive financial assistance to help develop and extend their projects.The award is given every two years.The most recent one was given last year. Question: Compared with a refrigerator, the cooling System invented by Mohammed Bah Abba is _ . Options: A: convenient B: economical C: health-conscious D: expensive
B
I'm taking a test and have to guess the right answer to the question after the article. Article: 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 fanfily traditional cultural patterns confer (~z~,) 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 ability, decades of research have failed to produce consistent evidence that there is any category of "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 of 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-beings of a social group's members. 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 _ to other group members. They give orders and may discipline group members who prohibit 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... Question: What does the passage mainly discuss? Options: A: The problems faced by leaders. B: How leadership differs in small and large groups. C: How social groups determine who will lead them. D: The role of leaders in social groups.
D
Q: I'm taking a test and have to guess the right answer to the question after the article. Article: It is surprising that eating three meals a day--breakfast,lunch and dinner-has been a custom only since 1890. Before this time,people only had two meals a day--breakfast and dinner. In the 16th century,breakfast was only to break one's fast . But 200 years later it had become a large meal,not just for family,but for numbers of guests as well. It was a social event. It began at 10 a.m. and lasted until 1 p.m. Then breakfast began to be less popular. It became,instead,a lighter meal and was taken at a much earlier hour. By 1850 it had been pushed back to 8 a.m. and became a family meal. Dinner,however,went to the other way. In the 16th century it was eaten at 11 a.m. Years later,it had moved to the early afternoon,then to 5 p.m. By 1850 dinner time had reached 7 p.m. Lunch is a recent idea. It first appeared as a snack to fill the gap between breakfast and dinner. Question: People did not have lunch _ . Options: A: since 1890 B: after 1890 C: until 1890 D: by 1890
A: C
I'm taking a test and have to guess the right answer to the question after the article. Article: My daughter Alisa was born blind in her right eye and was bullied pretty severely in school. So I quitted my job as a babysitter and then schooled my daughter heart and soul at home. A year ago a boy of 14 befriended my daughter on Facebook after reading something Alisa wrote about bullying. Today he messaged her and asked if she would like six tickets to a Colorado Rockies baseball game. They have never met in person but she said, "Sure! That would be great." Then I received a call from his mother explaining why her son had chosen my daughter. She said he thought my daughter deserved them because of all the good she does in the community. Her son, she explained, had experienced a similar situation and was also home schooled. What she said is true. Now my daughter Alisa continues to teach groups of girls in trouble in our community how to look within themselves for the positive and how to be their own person. Everything taken into consideration, we decided to meet the mother and the boy at a local bike shop. After meeting, the boy approached my car and my daughter gave him a hug and thanked him for his generosity. She told him that she had never been to a baseball game and that she was going to take her entire family, including myself, her dad, little sister, her cousin and an aunt who has brain cancer. We all thanked one another, got in our car, and went our way. As we drove home my daughter opened the envelope. Inside it were the tickets and $100 each to buy hot dogs, pay for parking and not have any worries but a great time. My daughter has always been the giver and now she and our family are the receivers and I can not tell you how incredibly honored we feel to be on the other end. What an incredible young man to have such a kind idea. Question: What can we learn about the boy? Options: A: He is afraid of meeting strangers. B: He always bullies smaller children. C: He is addicted to the internet. D: He receives education at home.
D