key: ……

but never sleeps?What common English verb becomes its own past tense by rearranging its letters?I reach for the sky, but clutch to the ground; sometimes I leave, but I am always around. What am I?Key:1 ……

over the past 20 years. The study was in the US science journal (期刊) Current Biology. Researchers say that human activity, such as agriculture (农耕) and mining (挖矿), is the key reason for this problem ……

Novelty is key here. Utilizing waffles as a base for sandwiches is a historic innovation. With both... releasing waffle-based sandwiches over the past couple of years, the trend of using waffles as a base ……

Why are movie stars cool?(Key on Page 5) ……

Why was the nose tired?(Key on Page 6) ……

、传递”等；而past则可作形容词、副词、介词、名词等，意思分别是“过去的；经过；过……；过去、往事(与the连用)”。例如：1. Please pass me a cup of tea. 2. That has been my life for these past five years. 3. Tom walked past without noticing me. 4. It is half ……

and took the path toward *prosperity. A key lesson we should learn from the past 37 years is that talented... and the cities that need them, so as to promote economic development. Freedom of movement is the key ……

cities in Europe. Lovers of low-key Lisbon tend to get sentimental as they describe the crumbling... and past times) heard from a bar in a dark alley.The city's new-found confidence has a lot to do with its ……

.com/Offers test materials from past years and plenty of mock exams for practice. ……

Questions:1. What is the man doing behind the fish?2. What was London’s nickname in the past?3. What sport does Jeff Kahlow love?Exercise:翻译下列句子：1. 他太小了，不能照顾自己。______________________________2. 这个 ……

each other’s lives, too.Buttercup, a cat from Key West in Florida, US, was anaemic (贫血的) and in need... the cat dog’s blood. It’s a practice that’s been used in the past but it’s not common.”Buttercup ……

. In the past few years, many non-governmental and profit-led institutions (机构) have launched (发起... (扰乱) normal school education.”The 29 contests were selected by MOE based on a few key criteria ……

.For example, market share data released last week by research firm IDC showed Dell moving past HP... desktop PCs have declined 40 per cent in the past two years.Experts believe the decline reflects ……

to develop two or three key messages and you need to make sure these points are delivered:About... or services, but that you can produce things on time and under budget. Then give some past examples ……