【名词&注释】
西藏自治区(tibet autonomous region)、民主改革(democratic reform)、生活史(life history)、纪念日(thanniversary)、裸子植物(gymnosperm)、薄荷油(peppermint oil)、第一个(first)、推理判断题
[单选题]2009年3月28日，西藏自治区隆重集会，纪念第一个(first)“西藏 纪念日”。
A. 和平解放
B. 民主改革
C. 百万农奴解放
D. 百万农奴翻身
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举一反三：
[单选题]This text is most probably taken from_
A. a research paper
B. a newspaper report
C. a class presentation
D. a geography textbook.
[单选题]George is going to talk about the geography of his country, but I’d rather he_______ more on its culture.
A. focus
B. focused
C. would focus
D. had focused
[单选题]苏铁(Cycas revoluta)和银杏的生活史都有游动精子出现，说明它们是裸子植物的原始类型。( )
A. 正确
B. 错误
[单选题]薄荷为唇形科植物，可制高级香料和药品，其( )含薄荷油(peppermint oil)。
A. 全草
B. 叶
C. 茎和根
D. 花
[单选题]裸藻细胞大多只由原生质体组成。( )
A. 正确
B. 错误
[单选题]
A. Struggling
B. Trembling
C. Wandering
D. Whispering
[单选题]The term “multitasking” originally referred to a computer’s 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 exercises (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 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). Brian scans of volunteers performing multiple tasks together show that as they shift from task to task, this front part of the brain actually takes a moment of rest between tasks. You may have experienced a prefrontal cortex “moment of rest” yourself if you’ve ever dialed (拨电话) a phone number and suddenly forgotten who you dialed when the line is answered. What probably occurred is that between the dialing and the answering, your mind shifted to anther 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.
A. Multitasking is easiest when at least one of the tasks is habitual, or requires little thought. Most people don’t 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.
B. We often don’t remember things as well when we’re trying to manage several details at the 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 people’s names---even sometimes right after they have introduced themselves. Multitasking can also affect our relationships. 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.
C. 49. Why are some mental aerobic exercises designed to engage people in multitasking?
D. To make them more productive.
E. To reduce their stress and anxiety.
F. To develop their communication skills.
G. To help them perform. daily tasks more easily.
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