Question

【題目】Hightech glasses developed at Washington University School of Medicine in St. Louis may help surgeons visualize cancer cells, which glow blue when viewed through the eyewear. Cancer cells are notoriously difficult to see, even under highpowered magnification. The glasses are designed to make it easier for surgeons to distinguish cancer cells from healthy cells, helping to ensure that no tumor cells are left behind during surgery.

“We’re in the early stages of this technology, and more development and testing will be done, but we’re certainly encouraged by the potential benefits to patients，” said breast surgeon Julie Margenthaler, MD, an associate professor of surgery at Washington University. “Imagine what it would mean if these glasses got rid of the need for followup surgery and the associated pain, inconvenience and anxiety.”

Current standard of care requires surgeons to remove the tumor and some neighboring tissue that may or may not include cancer cells. The samples are sent to a pathology(病理) lab and viewed under a microscope. If cancer cells are found in neighboring tissue, a second surgery is often recommended to remove additional tissue that is also checked for the presence of cancer.

The glasses could reduce the need for additional surgical procedures and following stress on patients, as well as time and expense.

Margenthaler said about 20 to 25 percent of breast cancer patients who have lumps removed require a second surgery because current technology doesn’t adequately show the extent of the disease during the first operation.“Our hope is that this new technology will reduce or ideally eliminate the need for a second surgery，” she said.

In a study published in the Journal of Biomedical Optics, researchers noted that tumors as small as 1 mm in diameter (the thickness of about 10 sheets of paper) could be detected.

Ryan Fields, MD, a Washington University assistant professor of surgery and surgeon of Alvin J. Siteman Cancer Center, plans to wear the glasses later this month when he operates to remove a melanoma from a patient. He said he welcomes the new technology, which theoretically could be used to visualize any type or cancer.

“A limitation of surgery is that it’s not always clear to the naked eye the distinction between normal tissue and cancerous tissue，” Fields said.“With the glasses developed by Samuel Achilefu, PhD, professor of Washington University, we can better identify the tissue that must be removed.”

【1】【改編】what is the ultimate goal of developing the new technology ?________.

A．to distinguish cancer cells from healthy ones

B．to encourage hope for life in cancer patients

C．to make sure no cancer cell is left behind

D．to cut down the risk of cancer surgery

【2】The underlined word “eliminate” in Paragraph 5 is closest in meaning to ________.

A．meet B．remove

C．feel D．resist

【3】【改編】From the whole passage,what can be inferred ?_____

A．The glasses are invented by Ryan Fields and Samuel Achilefu.

B．The glasses glow blue when finding tissues including cancer cells.

C．Tumors as small as 1 cm in diameter could be detected by the glasses.

D．Much remains to be done before the technology can be widely employed.

【4】Which of the following would be the best title for the passage?

A．Special glasses help surgeons“see” cancer

B．A new technology has been used in surgery

C．Patients will benefit from a new technology

D．Cancer is no longer a threat to people

Answer 1

【答案】

【1】C

【2】B

【3】D

【4】A

【解析】

試題解析：本文是一篇說明文。美國的學者發(fā)明了一種可視眼鏡，能夠清楚地“看見”癌細胞，而且這種眼鏡有助于確保手術時不留下任何癌細胞，避免患者再次做手術。

【1】選C 細節(jié)理解題。根據(jù)第一段最后一句中的“helping to ensure that no tumor cells are left behind during surgery”可知，這種眼鏡有助于確保手術時不留下癌細胞，這就是發(fā)展這種新技術的最終目標。故選C。

【2】選B 詞義猜測題。根據(jù)第五段第一句中的“Margenthaler said...have lumps removed require a second surgery” 可知，20%至25%的乳腺癌患者接受首次手術切除腫瘤后，還需再次手術，由此結合選項可推知，此處指希望這項新技術能夠減少甚至完全消除再次手術的必要性，因此畫線詞的詞義與 remove 最為接近。故選B。

【3】選D 推理判斷題。根據(jù)第二段第一句中的“We’re in the early stages of this technology，and more development and testing will be done”可知，這一技術尚未得到廣泛利用，因此它處于研究初期，需要進行更多的改進和測試工作，因此D項符合題意。故選D。

【4】選A 標題概括題。根據(jù)第一段第一句中的“Hightech glasses developed at Washington University School of Medicine in St.Louis may help surgeons visualize cancer cells”并結合下文內容可知，文章介紹的是一種特別的眼鏡，它可以幫助外科醫(yī)生“看見”癌細胞，因此“Special glasses help surgeons’see’cancer”最適合作為最佳標題。故選A。