Question

It seems that electronic devices just keep getting smaller. Scientists in the United States have announced the creation of the first transistor with only two dimensions（二维）.

A transistor is a small electronic device that transfers or carries electronic current. Scientists hope these new 2D transistors will be used for building high-resolution（高分辨率）displays that need very little energy.

Two groups of scientists created these 2D transistors. They report that the transistors are only a few atoms thick.

Usually transistors are made with the element silicon（硅）. Computer processors, memory chips, TV screens and other electronic devices contain billions of silicon-based transistors. But these very small electrical parts have certain limitations.

Dimitris Ioannou is an electrical engineering professor at George Mason University. He says the traditional transistor has been improved as much as it can be.He adds that researchers have been looking for new materials with special features and they want transistors to be seen through and soft.

“If the layers are very thin, the transistor can become flexible, so it doesn't have to be rigid（坚硬的）, like it would be in a silicon chip. So people can think of applications like wearable electronics, television screens and other things,” said Ioannou.

These new transistors can also carry higher current. They also can move the current much faster than traditional transistors. This is important for high-definition screens.

Dimitris Ioannou says the scientific success could prove very useful in the future. "Now, how good and how useful it will be, it's still in the stage of research, but it certainly is an advance," said Ioannou.

1.Which of the following statements about the newly created transistor is TRUE?

A. They are expected to be used in high-resolution displays.

B. The transistors are made with the element silicon.

C. They are rigid, just like traditional transistors.

D. They have already been put into actual use.

2.What does the underlined sentence in Paragraph 5 mean?

A. The traditional transistors have been changed into two-dimensional ones.

B. Many of the traditional transistors have been improved over the years.

C. The traditional transistor has been developed to its fullest.

D. The traditional transistor has been developed quite well.

3.What is Dimitris Ioannou's attitude towards the creation of the new transistors?

A. Negative.    B. Neutral.

C. Indifferent.    D. Positive.

Answer

1.A

2.C

3.D

【解析】本文为介绍说明文。美国科学家发明了新的二维晶体管，文章介绍了新型二维晶体管的相关信息及未来前景。

1.细节理解题。根据第二段中的Scientists hope these new 2D transistors will be used for building high-resolution（高分辨率）displays that need very little energy.可知，科学家们希望能用这些新的二维晶体管来制造高分辨率的显示器。故选A。

2.句意理解题。划线句句意为“他说传统的晶体管已经尽可能地改进了”可推知，传统的晶体管已经开发到了极致。故选C。

3.观点态度题。A. Negative消极的；B. Neutral中性的；C. Indifferent漠不关心的；D. Positive积极的。根据最后一段中的Dimitris Ioannou所说的话可推知，他对于这种新型的晶体管持有积极乐观的态度。故选D。

【名师点睛】

阅读理解所设试题主要考察细节查找，做题关键是找出原文的根据，认真核查题支和原文的异同，常犯错误有：绝对化语言，范围扩大或缩小，以偏概全，张冠李戴等。考生首先要浏览短文后的小题题干，标出关键词（组），带着问题去阅读，能够做到心中有数，目的明确；然后再仔细阅读短文，完整了解信息，准确把握细节信息，并标出能得出答案的有效信息。如第1小题Which of the following statements about the newly created transistor is TRUE?（下面关于新型晶体管的陈述正确的是哪个？），根据第二段中的Scientists hope these new 2D transistors will be used for building high-resolution（高分辨率）displays that need very little energy.可知，科学家们希望能用这些新的二维晶体管来制造高分辨率、低耗能的显示器。于是我们在文章中标识出这一句话，并标上小题号作为第1小题的答案依据。做阅读理解题时，一定要细心，这样才能准确找到正确答案。