1.(2019课标全国卷Ⅰ)Modern methods tracking polar bear populations have been employed only since the mid-1980s, and are expensive to perform consistently over a large area.
1. 答案 of/for 考查介词。名词method后接介词of/for,表示“……的方法”。
2.(2017课标全国卷Ⅰ)This trend, which was started by the medical community (医学界) a method of fighting heart disease, has had some unintended side effects such as overweight and heart disease—the very thing the medical community was trying to fight.
2. 答案 as 分析句子结构可知,as在此处作介词,意为“作为”。表示“作为一种抵抗心脏病的方式”。
3.(2017课标全国卷Ⅱ)It ran for just under seven kilometers and allowed people to avoid terrible crowds on the roads above as they travelled to and work.
3. 答案 from 考查介词。此处是指“当他们上下班时”。
4.(2017课标全国卷Ⅲ)After school she plans to take a year off to model full-time before going to university to get a degree engineering or architecture.
4. 答案 in 名词degree意为“学位”,后面应该跟介词in,表示“在……方面”。a degree in engineering or architecture意为“工程学或建筑学学位”。
5.Chopsticks are not used everywhere in Asia. In India, for example, most people traditionally eat their hands.
5. 答案 with with one's hands“用某人的手”。介词with意为“用”。
