除了課堂上的學習外,平時的積累與練習也是學生提高成績的重要途徑,以下是小編為大家搜尋整理的2017年職稱英語衛生類補全短文試題，希望能給大家帶來幫助! 更多精彩內容請及時關注我們應屆畢業生考試網!
Leukemia
Leukemia is the most common type of cancer kids get, but it is still very rare. Leukemia involves the blood and blood-forming organs, such as the bone marrow.___1___
A kid with leukemia produces lots of abnormal white blood cells in the bone marrow. Usually, white blood cells fight infection, but the white blood cells in a person with leukemia don’t work the way they’re supposed to. ___2___The abnormal white blood cells multiply out of control1, filling the bone marrow and making it hard for enough normal, infection-fighting white blood cells to form. Other blood cells — such as red blood cells (that carry oxygen in the blood to the body’s tissues) and platelets (that allow blood to clot) — are also crowded out2 by the white blood cells of leukemia. These cancer cells may also move to other parts of the body, including the bloodstream, where they continue to multiply and build up3.
Although leukemia can make kids sick, most of the time it is treatable, and kids get better. Almost all leukemia patients are treated with chemotherapy, which means using anti-cancer drugs.
___3___Chemotherapy quickly goes to work, traveling through the blood to the bone marrow. There, the drugs can attack the cancer cells. After several weeks of chemotherapy, many kids begin to feel better.
Some children with leukemia will also have to have radiation therapy, too. ___4___
If the cancer isn’t getting better from using the usual amounts of chemotherapy and radiation, then kid with leukemia will probably need more treatment —with higher doses of chemotherapy and radiation to finally kill the cancer cells. But this heavy-duty treatment will also harm the normal cells in the kid’s bone marrow too, and the bone marrow will no longer be able to produce normal blood cells. So, doctors will then give a kid — or anyone else with bone marrow that is no longer working — normal bone marrow tissue from someone else who is healthy. ___5___
詞彙：
leukemia 白血病 marrow 髓 innermost 最內的，最深處的
abnormal 反常的`，變態的 infection 感染 multiply .增加，繁殖
platelet 血小板 clot (血等)凝結成塊 bloodstream 血流
chemotherapy 化學療法 catheter 導管 insert 插入，嵌入
invisible 看不見的，無形的 cancerous 生癌的;患癌症的
heavy-duty . 重型的;大劑量的 transplant 移植 註釋：
of control：失去控制;不受控制
also crowded out：也被排擠出去
d up：逐漸積聚;集結
練習：
A. The chemotherapy drugs are given through a catheter, a narrow tube that is inserted into a blood vessel, sometimes in the kid’s upper chest.
B. Early symptoms of leukemia are often overlooked, since they may resemble symptoms of the flu or other common diseases.
C. This is a special procedure called a bone marrow transplant, and it helps the patient make new blood cells so they can recover from the leukemia.
D. Bone marrow is the innermost part of some bones where blood cells are first made.
E. They don’t protect the person from infections very well.
F. Radiation therapy uses invisible high-energy waves (similar to X-rays) to kill cancerous cells.
