After exercising, the scientists tested the cyclists with eye tracking cameras to see how well their brains could still?control their visual system.

2017年6月四级真题（第三套）阅读 Section A

The always-on Internet devices raise some novel possibilities, like tracking where students gather together.

出自-2013年6月阅读原文

Companies have already won part of the battle, having driven tech into every part of our lives, tracking our steps and our very heartbeats.

2016年12月六级真题（第二套）阅读 Section B

Meanwhile, TV use did not show this tracking.

2019年12月六级真题（第一套）阅读 Section B

The dataset they used did not include economic data, so instead the researchers looked at whether the 2013-16 well-being decline was tracking economic indicators.

2019年12月六级真题（第一套）阅读 Section B

The study included 386 kindergarteners from schools in the Fast Track Project, a multi-site clinical trial in the U.S that in 1991 began tracking how children developed across their lives.

2018年12月六级真题（第一套）阅读 Section C

Through satellite tracking of both the herd and the lions in the area, they will be able to determine if their psychological trickery will work to help keep farmers from shooting lions.

2018年12月六级真题（第一套）阅读 Section A

By tracking people's e-mails and online posts, scientists have found that good news can spread faster and farther than disasters and sob stories.

2016年高考英语全国卷3 阅读理解 阅读D 原文

Modem methods of/for tracking polar bear populations have been employed only since the mid-1980s, and are expensive to perform consistently over a large area.

2019年高考英语全国卷I 语法填空 原文

Few switch DNT on now, but if tracking is off it will stay off.

2013年考研真题（英语一）阅读理解 Section Ⅱ

Getting a DNT signal does not oblige anyone to stop tracking, although some companies have promised to do so.

2013年考研真题（英语一）阅读理解 Section Ⅱ