[单项选择]Passage 2 Any dog owner will tell you that dogs are compassionate and can sense human emotions. But a new study suggests that dogs’ emotions are closer to ours than once thought. According to the study, along with the most basic emotions—anger, fear—dogs also feel a simple form of envy. The study is the first to demonstrate that animals other than humans experience envy, which has long been considered an emotion that requires self-consciousness. Maybe that behavior is not uniquely human. To reveal this behaviour, scientists at the University of Vienna put together pairs of domestic dogs, each accompanied by an experimenter. Both dogs in each pair were given commands to place their paws in the experimenter’s hands, and when they obeyed, they were given a reward—a piece of bread or sausage. But when one dog wasn’t given a reward for obeying, and the other dog in the room was, the unrewarded dog would refuse to respond to the repeated commands. The scientists measured the dogs’
A. do not have the sense of guilt
B. have a simple form of jealousy
C. do not have self-consciousness
D. have the feeling of compassion

[单项选择]Passage 2 Any dog owner will tell you that dogs are compassionate and can sense human emotions. But a new study suggests that dogs’ emotions are closer to ours than once thought. According to the study, along with the most basic emotions—anger, fear—dogs also feel a simple form of envy. The study is the first to demonstrate that animals other than humans experience envy, which has long been considered an emotion that requires self-consciousness. Maybe that behavior is not uniquely human. To reveal this behaviour, scientists at the University of Vienna put together pairs of domestic dogs, each accompanied by an experimenter. Both dogs in each pair were given commands to place their paws in the experimenter’s hands, and when they obeyed, they were given a reward—a piece of bread or sausage. But when one dog wasn’t given a reward for obeying, and the other dog in the room was, the unrewarded dog would refuse to respond to the repeated commands. The scientists measured the dogs’
A. show dogs’ response to rewards
B. test dogs’ sense of cooperation
C. demonstrate dogs’ emotion of envy
D. measure dogs’ refusal of commands

[简答题]part 1Letter Is there any letter you do not want to reply Do you often write letters When is the last time you sent a letter What was the letter about

[简答题]Part 1Letter Is there any letter you do not want to reply Do you often write letters When is the last time you sent a letter What was the letter about

[简答题]Part 1Letter Is there any letter you do not want to reply Do you often write letters When is the last time you sent a letter What was the letter about