C1
对话
1. What is the main topic of the conversation?
A way to research gender differences among hadrosaurs
Adaptations that allowed hadrosaurs to live in a wide range of habitats
Collection of hadrosaur fossils that the student is trying to analyze
Reasons that hadrosaurs fossilized in relatively large numbers
2. What point does the professor make about high-mountain areas?
They were probably unsuitable for dinosaurs.
They differ in the types of sediments that they produce.
They generally lack the conditions needed for fossil formation.
They likely experienced less weathering in the dinosaur era than they do now.
3. Why does the professor mention Denali National Park?
To show that fossils are often found in unusual locations
To explain how some of the tallest mountains were formed
To cite an exception to a general rule of fossil formation
To identify a place where many hadrosaur tracks were discovered
4. What does the professor imply about hadrosaurs when he mentions dinosaur movies?
Hadrosaurs might have eaten both plants and animals.
Hadrosaurs lacked characteristics that are interesting to the general public.
Hadrosaurs were in some ways very similar to sauropods and theropods.
Hadrosaurs are portrayed inaccurately in some dinosaur movies.
5. What does the professor say about hadrosaurs at the end of the conversation?
They lived in social groups.
They had no natural predators.
They had frightening claws.
They were among the largest dinosaurs.
