1. Estimates vary, but the research firm IDC projects that wearable tech will exceed 19 million units this year—more than triple last year’s sales—and will soar to 111.9 million units by 2018. Credit Suisse values the industry at somewhere between $30 billion and $50 billion in the next two to four years. But before that happens, the nascent market has that pesky wouldn’t-be-caught-dead-wearing-it hurdle to clear.

2. The first drone can be traced back to 1916 when British inventor Archibald Low designed and flew the first unmanned radio-controlled vehicle. The drone was made to counterattack German Zeppelin airships, and it also carried out ground attacks during World War I. It was made with wood and tin, its wings taken from the lower wing of another biplane. Overall, the drone was somewhat unsuccessful because the noise from its engine interfered with its radio. The Sopwith Aircraft Company also tried making a drone in 1916. They placed the radio equipment at the tail so that the engine would not interfere with its signal, but their drone never flew as it was damaged in an accident on the ground. Low would try flying his drone again in 1917 when he flew it in front of some senior military officers. It was launched from the back of a lorry and flew for some time before crashing due to engine failure, almost killing the military officers present.

3. n. 检查，视察

4. Define yourself

5. v. 加强，变坚固

6. For now, most of the activity around bitcoin is monetary in nature, so it makes sense that its critics point to volatility. Though the value of one bitcoin in U.S. dollars has fallen 67% in the past year, its value over the past two years is up 1,879%, according to the market price chart at blockchain.info. So whether it’s a good investment or a bad one is a matter of perspective.

应用

1. Below are 10 clues you left that basically scream: "I am job searching!"

2. con共同，sci知道，ious多：什么都知道－清醒

3. Recipient: Lindsay Lohan

4. 学员平均年龄：37岁

5. 2. American shale.By the end of 2014, the U.S. was producing more than 9 million barrels of oil per day, an 80 percent increase from 2007. That output went a long way to creating a glut of oil, which helped send oil prices to the dumps in 2014. Having collectively shot themselves in the foot, the big question is how affected U.S. drillers will be by sub-$60 WTI. Rig counts continue to fall, spending is being slashed, but output has so far been stable. Whether the industry can maintain output given today’s prices or production begins to fall will have an enormous impact on international supplies, and as a result, prices.

6. China will not see nor allow massive unemployment of particular groups this year, as the government is capable of ensuring a favorable environment to generate jobs.

旧版特色

1. [ri'f?:m]

2. 在这部暑期大片上映40年后，约翰·威廉姆斯的经典原声大碟仍然叫人毛骨悚然。《大白鲨》利用我们对未知的深海的本能恐惧，展示了一个多次受到同一条食人鲨袭击的海滨小镇。近年来，环保人士强调，鲨鱼通常不主动伤人，平均每年只有8人葬身鲨口。

3. 然后，新班子的第一个举动——用路易斯-威廉姆斯从火箭那里换来一个一轮签——是一个明确的信号，他们意识到必须不惜一切代价保证六月抽签时自己的选秀权能在前三。