D. Because parents want to give their children the best start in life.

　　69. According to the article, what is the purpose of extra academic work?

　　A. To aid slow learners and support high achievers.

　　B. To prepare children for all kinds of academic contests.

　　C. To increase children's hobbies and interests in many fields.

　　D. To gain the most knowledge that students can't get in class.

　　70. Which disadvantage of extra academic work is NOT mentioned?

　　A. Causing social tensions.

　　B. Spending more extra money.

　　C. Lacking the chance to communicate with others.

　　D. Reducing the students' time for sports and other activities.

　　71. What is the text mainly about?

　　A. The government policy on educational systems.

　　B. How to provide the best education for children.

　　C. The importance for children's overall development.

　　D. The reasons for the popularity of private tutors for children.

　　E

　　Psychologists have known that what's going on inside our head affects our senses. For example, poorer children think coins are larger than they are, and hungry people think pictures of food are brighter. Professor Remi Radel wanted to investigate how this happens -- whether it's right away, as the brain receives signals from the eyes, or a little later, as the brain's higher-level thinking processes get involved.

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