B. Extensive reading: We must train our ability to scan, skip and read fast. Namely, the ability to catch the key words, the topic sentences and the drift of the articles.

泛读：要培养浏览，跳读和快读的能力。即抓住关键词，主题句和中心大意的能力。

youdao

With scan times of less than a second, the system is fast enough to be used on a production line.

不到1秒的快速扫描速度使这套系统能够满足生产线的需要。

youdao

In 1985, British Telecom (BT) introduced integrated digital communications network. It provides users with voice, fast delivery chart, fax, slow scan television terminals.

1985年，英国电信公司(BT)推出综合数字通信网络。它向用户提供话音、快速传送图表、传真、慢扫描电视终端等。

youdao

They are fast enough to scan trucks and cars as they pass through toll booths, portable enough to be used almost anywhere and sensitive enough to distinguish between a weapons-grade isotope and the less dangerous form in an X-ray machine.

FORBES: Stopping porta-nukes

Amazon's scan and match technology gives customers a fast and easy way to get all of their music from their computers to the cloud.

ENGADGET: Amazon updates Cloud Player with 256 Kbps matched files, faster import, direct delivery (update: Roku, Sonos coming soon)

Amazon announced significant updates to Cloud Player, including scan and match technology which provides customers a fast and easy way to get all of their music from their computers to the cloud.

ENGADGET: Amazon Q3 2012 earnings: $13.18 billion revenue, net loss of $274 million