Jack equals his brother in strength but not i...

Jack equals his brother in strength but not in _______.He is slower in thinking .

高三英语单项填空中等难度题查看答案及解析

Making a speech in front of a crowd of people is not his strength but he____ it with his passion and efforts．

A．takes advantage of　 B．makes up for

C．gets hold of 　　　　 D．1ives up to

高三英语单项填空中等难度题查看答案及解析

Making a speech in front of a crowd of people is not his strength but he ______ it with his heart and efforts．

A. takes advantage of　 B. makes up for

C. 1ives up to　　 　　 D. gets hold of

高三英语单项填空简单题查看答案及解析

Griffin is naughty, talkative, casual, but _____, his classmates think he is not so tiresome

A. in a way     B. in other words   C. all in all      D. on the contrary

高三英语单项填空中等难度题查看答案及解析

He does not ________ as a teacher of English, for his pronunciation is terrible.

A．equal          B．match          C．qualify        D．fit

高三英语单项填空中等难度题查看答案及解析

The president has told his friends that he is sick but will not admit it _____.

高三英语单项填空简单题查看答案及解析

In a university library, a student is writing an essay on his laptop. But that’s not all. He’s also reading instant messages online, listening to his music with headphones, and checking text messages on his cell phone. In today’s world, people use a wide variety of electronic media to multitask, doing several things at the same time. Neuroscientists are studying the brain to see what happens during multitasking and to see if multitasking affects the quality of what we do.

In a multitasking study conducted by French scientists Eienne Koechlin and Sylvain Charron, people were given one task requiring concentration. Brain images showed that both the left and right prefrontal cortex (前额叶皮质) were active as people worked. However, when the person is given a second task to do at the same time, the left prefrontal cortex look on task, and the right look the other. When doing two tasks, MRI (磁共振成像) images showed that the brain was rapidly switching between the first and the second task. The brain was not working on both tasks at the same time. It is concentrating on one task and then switching to the other.

In order to switch attention from one task to another, the brain must use its working memory. This is the brain’s ability to temporarily hold information while it does something else. When you multitask, the first task is stored in your working memory. Then your brain goes to the second task but when it returns to the first task, it must restart it, using working memory.

Although we think we are getting more done by multitasking, evidence shows that we do not. Researchers have found that people take longer to complete tasks and make more mistakes. When the French researchers expanded their experiment to include three tasks, surprisingly, the brain seemed to completely drop on task and only focus on two tasks. The French team concluded that the brain could not focus on more than two tasks at a time. Therefore, for a task that requires your concentration, it’s better to just focus on that one task until you are done.

1.Why does the author mention a student in paragraph 1?

A.To explain what happens during multitasking.

B.To serve an example of high-tech multitasking.

C.To show how to be skillful at high-tech multitasking.

D.To-present the applications of high-tech media.

2.What does the underlined “it”in paragraph 3 refer to?

A.The brain. B.The MRI image.

C.The first task. D.The second task .

3.What can we learn about multitasking?

A.Electronic media improve its quality.

B.Three tasks can be well managed at a time.

C.It can damage the brain’s working memory.

D.It may result in the loss of speed and accuracy.

4.What can be the best title for the passage?

A.How does the brain multitask?

B.Why do we need to multitask?

C.Multitasking: a hew discovery of neuroscience

D.Multitasking: a way to expand the brain' s function

高三英语阅读理解中等难度题查看答案及解析

– Is your brother going to Jack’s birthday party tonight?

– I am not sure. He _____ go to the concert with his girlfriend instead.

A. ought to    B. has to        might       D. must

高三英语单项填空中等难度题查看答案及解析

--- Is your brother going to Jack’s birthday party tonight?

---I am not sure. He __________ go to a concert with his girlfriend instead.

A. might         B. has to               C. ought to     D. must

高三英语单项填空中等难度题查看答案及解析

Mary is very clever and _____ worth teaching, but her brother is not. Look, he is now _____ asleep in class.

高三英语单项填空简单题查看答案及解析