Question: Read the article and select the best answer. Article: Being Authoritative Parents Phrases like "tiger mom" and ''helicopter parent" have made their way into everyday language.Many of us find ourselves drawn to the idea that with just a bit more parental hard work and effort, we might turn out children with bright futures.But is there anything wrong with a kind of "overparenting style"? Parental involvement has a long history of being studied. Many of the studies, conducted by Diana Baumrind, a famous psychologist at the University of California, Berkeley, have found that a good parent is the one who is involved and reacts to her child in a positive way, who sets high expectations but gives her child independence.These "authoritative parents" appear to hit the sweet spot of parental involvement and generally raise children who do better academically, psychologically and socially than children whose parents are not strict and less involved, or controlling and more involved. Why is this parenting style so successful? Authoritative parents actually help improve motivation in their children.Carol Dweck, a social psychologist at Stanford University, has done research that indicates why authoritative parents raise more motivated children.In a typical experiment, Dr.Dweck takes young children into a room and asks them to solve a simple puzzle.Most do so with little difficulty.But then Dr.Dweck tells some, but not all, of the kids how clever they are.As it turns out, the children who are not told they're smart are more motivated to solve increasingly difficult puzzles.They also show higher levels of confidence and show greater progress in puzzle-solving. As the experiment suggests, praising children's talents and abilities seems to shake their confidence.Dealing with more difficult puzzles carries the risk of losing one's status as "smart".Dr.Dweck's work strongly supports that of Dr.Baumrind, who also found that reasonably supporting a child's independence and limiting interference causes better academic and emotional results. The central task of growing up is to... Question: It is implied that controlling style of parenting may _ . Options: A: face more challenges of children B: foster independence in children C: cause more problems in children D: lead to children's academic success
Answer: C

Question: Read the article and select the best answer. Article: Four decades ago a group of college students visited the mountains of Borneo to examine moth populations. Now a team of British scientists, including a member of the original trip, has returned to the same sites to repeat the survey. They have found that, due to rising temperatures, the insects now live 68 meters higher. Global warming is forcing tropical species uphill to escape the rising temperatures at a rate of nearly 2 meters a year, the new study from Borneo suggests. Since this was the only chance to repeat the original survey, the scientist did everything they could to do it exactly the same way, going at the same time of year, in July and August, using photographs to find the exact original sites of the moth traps. "While this is the first study of insects, a few other studies of tropical species are starting to appear," said Thomas. "If you look across all those studies, you'll find the same results, and it's extremely difficult to think of any other explanation for them." While some species might survive by finding places on the mountains with temperatures similar to those of their original habitats, others may run out of habitat on the rocky peaks, warns the study. In a paper in the journal Naturein 2004, Thomas and 13 other experts analyzed the habitats of 1,100 species on five continents, and estimated that on average one quarter were at risk of extinction. Last year a paper published in the Public Library of Science in the US warned that the risk of extinction in the tropics was becoming more and more serious. The authors, Jana and Steven Vamosi, estimated that 20-45% of tropical species were at risk of extinction. Question: If the temperature continues to rise at the same rate for ten years, the insects will live about _ . Options: A: 6.8 meters higher B: 19 meters higher C: 34 meters higher D: 68 meters higher
Answer: B

Question: Read the article and select the best answer. Article: Annealing is a way of making metal softer by heating it and then letting it cool very slowly. If metal is heated and then cooled very quickly , for example by dipping it in water , it will be very hard but also very brittle ---that is , It will break easily. Metal that has been annealed is soft but does not break as easily . It is possible to make metal as hard or as soft as is wished, by annealing it. The metal is heated, and allowed to cool slowly , for a certain length of time. The longer the heated metal takes to cool slowly , the softer it becomes . Annealing can also be used on other materials, such as glass. Question: As suggested by the text , how can glass be made less brittle ? _ Options: A: It can be heated and then cooled quickly B: It can be cooled and then heated slowly C: It can be heated and then cooled slowly D: It can be cooled and then heated quickly
Answer:
C