Q: Read the article and select the best answer. Article: Scientists think that many animals cannot see colours. The world is black and white to them. Scientists want to find out if dogs can see colours. When the scientists give the dogs food, they show them a certain colour every time. The dogs get ready to eat when they see this colour. The scientists then show the dogs another colour. Again the dogs get ready to eat. The colours are all the same to them. Colours are not all the same to monkeys. For example, if we put food in a red box, and do this every day, a monkey will always go to the red box to get food. If we put food in a blue box, the monkey won't go to it. Question: Scientists show the dogs colours _ . Options: A: to tell them to eat B: to find out if they can see black and white things C: for fun D: to find out if they can see colours
A: D

Q: Read the article and select the best answer. Article: Hello.I am Chinese.My name is Wang Fei.I am thirteen.I am in No.5 Middle School in Nanjing.This is my friend.His name is Tony Green.He is an English boy.He is twelve.He and I are in the same class.Our classroom is next to the teachers' office.We have Chinese and English lessons every day.Our English teacher is Mr. Read.He is English but he can speak Chinese,too.Our Chinese teacher is Mr. Ding.They are good teachers,and they are our friends.too. Question: Tony Green is from _ . Options: A: China B: America C: England D: Australia
A: C

Q: Read the article and select the best answer. Article: It's Sunday. Mike does not go to school. But he is not at home. He is now sitting on a bus. He is going shopping. An old woman gets on the bus. Mike stands up and says to her,"Come and sit here, please."The old woman goes over and sits down. She says,"Thank you very much, dear little boy." The bus stops near the shop. Mike says"Goodbye"to the old woman and gets off the bus. The old woman smiles and says"Goodbye"to him, too. Question: Which is right? Options: A: The bus stops far from the shop. B: The little boy and the old woman get off the bus. C: The old woman gets off the bus first. D: Mike gets off the bus and says"Goodbye"to the old woman.
A: D

Q: Read the article and select the best answer. Article: Our voice gives away a lot of information about ourselves. It can tell us our gender and age. And now, scientists say that it can also tell us our height. Scientists at Washington University, Indiana University and University of California found that listeners could accurately tell the height of speakers, just by their voices. And the key to this mystery is a sound known as the subglottal resonance . It _ with height and helps us build a mental picture of a person. "The best way to think about subglottal resonances is to imagine blowing into a glass bottle with water. The less water in the bottle, the lower sound," said John Morton, a scientist at Washington University. And it's the same for humans. The frequency of the subglottal resonance depends on the height. The taller we are, the deeper the resonance frequency is. In order to find out whether people could identify the resonance, scientists did experiments. A number of same-sex pairs of different heights were told to read the same sentence aloud. It was played back to listeners who had to choose which one of the pairs was taller. Then, other listeners had to rank the speakers from the shortest to the tallest. The listeners were able to identify the tall people 62.17% of time, much higher than a lucky guess. Why not try the experiment yourself? Find out if your tall friends have deeper voices. Question: Which of the following is TRUE? Options: A: Our voice is made up of the subglottal resonance. B: The people tested in the experiments were of different-sex pairs. C: A person's voice is greatly different even when reading the same sentence. D: Listeners' ability to identify taller speaker is much higher than a lucky guess.
A: D