VOA常速英语:MRI-like Scan May Help Identify Alzheimer's

短语讲解：

1. They also got a special kind of MRI scan to look for a biomarker that may indicate Alzheimer's.

look for寻找(某人或某物)
例句：She is looking for her lost child.
她正在寻找失去的孩子。

2. And those with significant amyloid-beta deposits tended to have high levels of the choline/creatine biomarker.

tend to有...的倾向
例句：Modern furniture design tends to simplicity.
现代家具设计越来越简单。

3. The MR spectroscopy, which is the MRI-type scan, identified people who scored lower on various tests of cognitive function, and who may be at risk for developing Alzheimer's.

at risk有危险
例句：The disease is spreading, and all children under five are at risk.
这疾病在蔓延, 五岁以下的小孩都有危险。

4. The researchers caution that MR spectroscopy can not be used to diagnose Alzheimer's.

be used to do被用来做……
例句：Zip codes are used to facilitate mail service. 
邮政编码方便了邮递服务。 

5. "But when they come about," she says, "there will be a chance for us to identify those normally functioning individuals who will benefit most from preventive treatment."

come about 发生
例句：The flood came about as a result of the heavy spring rains.
春季的大雨造成了洪水泛滥。
benefit from通过…获益
例句：He thought he would benefit from going to school.
他认为上学对他有好处。

6. In addition, researchers trying to develop treatments may be able to use this biomarker in tests to assess how effective a new drug is.

in addition另外
例句：They eat a great deal of fruit in addition.
他们还吃大量的水果。