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1、四川省西昌市2016高考英语阅读理解和信息匹配类练习（3）阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。The term“multitasking” originally referred to a computers ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercis
2、es(大脑训练)involve engaging the brain in two or more challenging activities at a time. Although checking e-mail while talking on a phone and reading the newspaper may be second nature for some people, many times multitasking can make us less productive, rather than more. And studies show that too much
3、multitasking can lead to increased stress, anxiety and memory loss. In order to multitask, the brain uses an area known as the prefrontal cortex(前额叶脑皮层). Brain seans of volunteers performing multiple tasks together show that as they shift from task to task, this front part of the brain actually take
4、s a moment of rest between tasks. You may have experienced a prefrontal cortex“moment of rest” yourself if youve ever dialed(拨电话) a phone number and suddenly forgotten who you called when the line is answered. What probably occurred is that between the dialing and the answering, your mind shifted to
5、 another thought or task, and then took that“moment” to come back. Research has also shown that for many volunteers, job efficiency(效率) declines while multitasking, as compared to when they perform only one task at a time. Multitasking is easiest when at least one of the tasks is habitual, or requir
6、es little thought. Most people dont find it difficult to eat and read the newspaper at the same time. However, when two or more attention-requiring tasks are attempted at one time, people sometimes make mistakes. We often dont remember things as well when were trying to manage several details at the
7、 same time. Without mental focus, we may not pay enough attention to new information coming in, so it never makes it into our memory stores. That is one of the main reasons we forget peoples nameseven sometimes right after they have introduced themselves. Multitasking can also affect our relationshi
8、ps. If someone checks their e-mail while on the phone with a friend, they may come off as absent-minded or disinterested. It can also cause that person to miss or overlook key information being passed on to them. 1. Why are some mental aerobic exercises designed to engage people in multitasking? A.
9、To make them more productive. B. To reduce their stress and anxiety.C. To develop their communication skills. D. To help them perform daily tasks more easily.2. According to Paragraph 2, why may a person suddenly forget who he has called? A. He may have his prefrontal cortex temporarily damaged.B. H
10、e is probably interrupted by another task.C. He is probably not very familiar with the person he has called.D. He may need a rest between dialing and speaking.3. People tend to make mistakes when.A. they perform several challenging tasks at a timeB. new messages are processed one after anotherC. the
11、ir relationships with others are affectedD. the tasks require little thought4. What is the main idea of the passage? A. Multitasking has become a way of life.B. Multitasking often leads to efficiency decline.C. Multitasking exercises need to be improved.D. Multitasking enables people to remember thi
12、ngs better.【参考答案】1-4 、ABAB 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。We now think of chocolate as sweet, but once it was bitter. We think of it as a candy, but once it was a medicine. Today, chocolate can be a hot drink, a frozen dessert, or just a snack. Sometimes it is an ingredient in the main course of
13、 a meal. Mexicans make a hot chocolate sauce called mole and pour it over chicken. The Mexicans also eat chocolate with spices like chili peppers.Chocolate is a product of the tropical cacao tree. The beans taste so bitter that even the monkeys say “Ugh!” and run away. Workers must first dry and the
14、n roast the beans. This removes the bitter taste.The word “chocolate” comes from a Mayan word. The Mayas were an ancient people who once lived in Mexico. They valued the cacao tree. Some used the beans for money, while others crushed them to make a drink.When the Spaniards came to Mexico in the sixt
15、eenth century, they started drinking cacao too. Because the drink was strong and bitter, they thought it was a medicine. No one had the idea of adding sugar. The Spaniards took some beans back to Europe and opened cafes. Wealthy people drank cacao and said it was good for the digestion. In the 1800s
16、, the owner of a chocolate factory in England discovered that sugar removed the bitter taste of cacao. It quickly became a cheap and popular drink. Soon afterwards, a factory made the first solid block of sweetened chocolate. Later on, another factory mixed milk and chocolate together. People liked the taste of milk chocolate even better. Besides the chocolate candy bar, one of the most popular Am
