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According to the interview, Sara's grades have fallen probably because ______.
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According to the family tradition about food distribution, which of the following statements is NOT correct？
It is doubtful that Tyrannosaurus Re had lips or that Triceratops had cheeks, says Lawrence Witmer, an assistant professor of anatomy at Ohio University in Athens, Ohio. Witmer was a leading researcher for a study on dinosaur anatomy that was presented at the annual meeting of the Society for Vertebrate Paleontology, which concluded on October 3 in Snowbird, Utah.
Witmer's study reached its conclusions by using high -tech computerized aial tomography (CT or CAT) scans along with comparative anatomy studies. For eample, the theory that Triceratops and similar dinosaur species had cheeks was based on past comparisons with mammals such as sheep. But Witmer's careful analysis found the structure of the triceratops jaw and skull made it more likely that Triceratops had a beak like that of an eagle. Witmer said that scientists should use birds and crocodiles as models when researching the appearance of dinosaurs.
In early October scientists announced that they had confirmed the discovery of a new type of ceratopsian dinosaur. The dinosaur's bones, found in New Meixco in 1996, are forcing paleontologists to rethink their theories about when ceratopsians migrated to what is now North America.
Scientists previously thought that ceratopsians, the group that included the well -known Triceratops, arrived in North America from Asia between 70 million and 80 million years ago. During this time, the late Cretaceous Period, the earth's two supercontinents -- Laurasia in the north and Gondwanaland in the south were in the process of pulling apart, cutting dinosaur populations off from each other and interrupting migratory patterns.
The fossilized bones, found by eight-year-old Christopher Wolfe and his father, paleontologist Doug Wolfe of the Mesa Southwest Museum in Arizona, date to about 90 million years ago. This could mean that ceratopsians originated in North America and migrated to Asia rather than the reverse, paleontologists said. Doug Wolfe named the important new species of dinosaur Zuniceratops christopheri after his son.
An expedition from the Universities of Alaska in Anchorage and Fairbanks has discovered a region in remote northern Alaska so rich in fossilized dinosaur tracks that team members dubbed it the "dino epress-way". The trampled area was found during the summer of 1998 on Alaska's North Slope near the Brooks Range.
The team found 13 new track sites and made casts from the prints of five different types of dinosaurs. The rock in which the prints were found dates to more than 100 million years ago, or about 25 million years older than the previously discovered signs of dinosaurs in the Arctic region. Paleontologists said that the new findings provide important evidence that dinosaurs migrated between Asia and North America during the, early and mid -Cretaceous Period, before Asia split off into its own continent.
Two rich fossil sites in the hills of Bolivia have been recently discovered, exciting paleontologists and dinosaur buffs. This discovery includes one of the most spectacular dinosaur trackways ever found.
The discovery of a large site in the mountain region of Kila Kila in southern Bolivia was announced in early October. Here scientists found the tracks of at least two unknown species of dinosaur. These included a large quadruped (four - footed) dinosaur that was probably about 20 m (about 70 ft) long.
The other site, located not far from the Bolivian city of Sucre, was uncovered in a cement quarry by workers several years ago but was not brought to paleontologists' attention until the middle of 1998. The site features
In the later part of the interview, if the family is short of food in the hungry season, how did the mother distribute the food？
SECTION B INTERVIEW
Directions: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions.
Now listen to the interview.
听力原文：Host: Welcome back to our series about issues that affect children in our communities. On our program last week, we heard about a few simple ways to help your children grow healthy by getting the right kinds of food to eat, and enough of it. Today, we'll talk about how girls sometimes don't get the food they need, and how to change that. In the following story, a young girl and her mother question the value of practices that favour boys at the expense of girls.
Mother: One of the proudest days of my life was the day that my daughter received her school certificate. It wasn't common for girls in my family to go to school, so I was especially proud.
Sara: I always did well in my classes, and got good grades. One year my grades were so high that I was at the top of my class!
Mother: Usually Sara did do well in school. But there was a time when I noticed a change in her. It was just be- fore harvest season. She seemed really tired and she wasn't helping with the chores much.., she kept complaining that she didn't have enough energy to do anything.
Sara: I was too tired to help my mother. And I didn't want to study either. I knew that my grades were falling, but I didn't say anything to my parents.
Mother: One day, Sam's father and I went to meet her teacher at the school. The teacher told us that Sara's grades had fallen, and that she might fail two of her classes. As you can imagine, we were very worried.
Sara: I never answered questions in class any more. One day in geography class I even fell asleep. But I didn't know what was wrong!
Mother: The teacher told us this was not the first time she'd noticed a change in Sara. And then she asked a clever question. She asked us if Sara was getting enough to eat.
Sara: My teacher must have noticed that I was thin and looked pale. It's true that I usually felt hungry just be- fore harvest time— that's when our food stores are almost empty.
Mother: I told the teacher that we often distribute food in the family a little differently when the supply is low. This usually happens close to harvest season, or when there's a drought. It's a tradition that girls and women in my family are given less to eat at these times. It may be wrong, but we have always believed that men need more food to do their work properly.
Sara: I always accepted this tradition. At certain times of the year, I knew that my mother had less to eat than my father, and I had less to eat than my brother. Nobody really questioned it.
Mother: The teacher suggested that now was the time to reconsider this family tradition. Sara's health was at risk. She pointed out that Sara was getting sick, and that she worked hard at school and at home. There was no reason that she should have less food than her brother.
Sara: I think that for the first time, my parents really thought about this tradition that had been part of my family for so long. They realized that the girls in the family should eat as well as the boys. I was working hard, like everybody else.
Mother: Since then, if we're short of food in the hungry season, I serve everybody a little bit less--not just Sara. And we all get some of the best parts of the meat/fish we eat. Not just the men and boys, but girls too. And I take some for myself. We might have less to eat, but we mintage, and it's more equal that way.
Sara: After that I went back to school, and my grades started to improve. I was able to work hard in the fields at harvest time. I was more helpful to everyone.
Host: Undernourished or hungry children get poor grades at school, and are too tired to help with chores at home. Sara and
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