【名词&注释】
城市化(urbanization)、等值线(isoline)、保持稳定(keep stable)
[单选题]影响乙地等值线向北弯曲的最主要因素是
A. 地形
B. 季风
C. 纬度位置
D. 海陆位置
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举一反三：
[单选题]Why did Peter create eBay after graduating from university?
A. For fun
B. To make money
C. For gathering the engineers
D. To fulfill a task of his company
[单选题]This printer is of good quality. If it ( )break down within the first year, we would repair it at our expense.
A. would
B. should
C. could
D. might
[单选题]木兰科植物的花常为( )
A. 单瓣花
B. 重瓣
C. 单被花
D. 重被花
[单选题]关于该区域城市化水平，下列叙述正确的是
A. 2010年约为50％
2020年以后趋于降低
2030年超过80％
2040年以后保持稳定
[单选题]______________
A. equipped
B. compared
C. covered
D. connected
[单选题]
A. quiet
B. dull
C. busy
D. cold
[单选题]
A. until
B. after
C. as
D. so
[单选题]榕树“独木成林”现象，主要是由于具有( )。
A. 攀缘根
B. 呼吸根
C. 支柱根
D. 寄生根
[单选题]C.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 (人脑训练) 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.
A. 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) and the answering, your mind shifted to anther thought or task, and then look 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.
B. Multitasking is easiest when at least one of the tasks in 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.
C. 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** off as absent-minded or disinterested. It can also cause that person to miss * overlook key information being passed on to them.
D. 49. Why are some mental aerobic exercises designed to engage people in multitasking?
E. To make them more productive.
F. To reduce their stress and anxiety.
G. To develop their communication skills.
H. To help them perform. daily tasks more easily.
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