Question

B  [2015*四川遂寧高三第二次診斷] Researchers are now using 3-D printing to create models of the human heart to help heart specialists. The heart doc?tors can use the models to better help patients before an oper?ation.

Dr Bramlet, a children's heart expert at the University of Illinois College of Medicine, says the 3-D models show infor?mation he cannot get any other way.

"And so what we've done with the printed models, we've pulled it out of the screen so that we can actually hold it in our hand and evaluate the anatomy(解剖)."

A 3-D printer uses images from a digital display to create a physical model of a human heart. Matthew Bramlet says doctors can use the model to understand the anatomy.

Pictures from medical tests like CAT scan or MRI are sent to a 3-D printer to create a heart in a plaster(石膏):form. The printer then constructs the heart, thin layer by thin lay?er. Dr Bramlet says the model matches the real heart in eveVy detail. "When we're done with the model and made our deci?sion, we want to be able to go back to the source image and confirm those findings," he says.

Dr Bramlet has built model hearts for different kinds of heart operations. All of the operations were successful. In his first case, digital images showed only one tiny hole in a baby's heart. But, the 3-D printed model showed several de?fects or problems that the baby was born with. Dr Bramlet says those defects could not be seen easily in the images. The heart surgeon was able to change the type of surgery for the patient based on the 3-D model. He added that 3-D heart models saves time during heart operations.

Kathy Magliato is a heart surgeon at Saint John's Health Centre in Los Angeles. She welcomes the new technology. She says it could help her make better decisions before she operates on the hearts of her patients.

"I can then take this very complicated structure before the operation and I can hold it in my hand and plan an opera?tion around what I'm seeing, touching and feeling. That to me is what can potentially change the game in an operation and save lives.，，

Dr Bramlet continues to research the technology. He is working with the National Institutes of Health to build a 3-D library that includes heart models and images that others can use.

5.What's the main idea of the passage?

 A.     The application of 3-D printing in heart operations.

B.     The development of 3-D technology.

C.     The difficulties of heart operations.

D.     Heart operations with the help of 3-D models.

6. What is the biggest advantage of 3-D models in the diag?nose of heart problems?

 A.     Surgeons can see, touch and feel the 3-D models.

B.     They can help surgeons save time.

C.     They can be made exactly like the hearts.

D.     They can help discover the otherwise hidden heart problems.

7.Which of the following statements is TRUE?

 A.     The 3-D model can be taken out of a screen.

B.     CAT scan and MRI are no longer needed.

C.     The 3-D model is an exact copy of the heart.

D.     Digital images are not reliable in heart operations.

8.What can we infer from the passage?

 A.     Digital images will mislead heart surgeons.

B.     More patients will benefit from the 3-D technology.

C.     Heart operations will never fail with 3-D models.

D.     Surgeons cannot operate on hearts without 3-D mod?els.

Answer 1

B [文章大意]本文是一篇科普文，介紹3-D打印在醫(yī)療領(lǐng)域的

應(yīng)用。

5.A 細(xì)節(jié)理解題。根據(jù)文章開頭"Researchers are now using 3-D printing to create models of the human heart to help heart special-ists."可知，本文講述的是三維打印在心臟手術(shù)方面的應(yīng)用。故選A項(xiàng)。

6. D 細(xì)節(jié)理解題。根據(jù)第二段的"…the 3-D models show informa?tion he cannot get any other way."可知，三維打印可以發(fā)現(xiàn)別的方式發(fā)現(xiàn)不了的問題。故選D項(xiàng)。

7. C 細(xì)節(jié)理解題。根據(jù)第四段"A 3-D printer uses images from a digital display to create a physical model of a human heart.，，可知， 3-D打印可以制造出心臟的模型。故選C項(xiàng)。

8. B 推理判斷題。根據(jù)最后一段的"Dr Bramiet continues to re?search the technology."可知，他繼續(xù)研究三維打印技術(shù)，以后就有更多的病人可以受益。故選B項(xiàng)。