1 . Recently according to a new research, humans have had a link to starches (含淀粉的食物) for up to 120,000 years — that’s more than 100,000 years longer than we’ve been able to plant them in the soil during the time of the ice Age’s drawing to an end. The research is part of an ongoing study into the history of Middle Stone Age communities.
An international team of scientists identified evidence of prehistoric starch consumption in the Klasies River Cave, in present-day South Africa. Analyzing small, ashy, undisturbed hearths(壁炉) inside the cave, the researchers found “pieces of burned starches” ranging from around 120,000 to 65,000 years old. It made them the oldest known examples of starches eaten by humans.
The findings do not come as a complete surprise — but rather as welcome confirmation of older theories that lacked the related evidence. The lead author Cynthia Larbey said that there had previously only been genetic biological evidence to suggest that humans had been eating starch for this long. This new evidence, however, takes us directly to the dinner table, and supports the previous assumption that humans’ digestion genes gradually evolved in order to fit into an increased digestion of starch.
Co-author Sarah Wurz said, “The starch remains show that these early humans living in the Klasies River Cave could battle against their tough environment and find suitable foods and perhaps medicines. And as much as we all still desire the tubers (块茎), these cave communities were gilling starches such as potatoes on their foot-long hearths. They knew how to balance their diets as well as they could, with fats from local fish and other animals.”
As early as the 1990s, some researchers started to study the hearths in the Klasies River Cave. Scientist Hilary Deacon first suggested that these hearths contained burned plants. At the time, the proper methods of examining the remains were not yet available. We now know human beings have always been searching for their desired things.
1. When did humans begin to farm starches?| A．After the Ice Age. | B．After the Middle Stone Age. |
| C．About 20,000 years ago. | D．About 100,000 years ago. |
| A．Starch diet promoted food culture. | B．Starch diet shaped humans’ evolution. |
| C．Starches had a variety of functions. | D．Starches offered humans rich nutrition. |
| A．They were smart and tough. | B．They preferred plants to meat. |
| C．They were generally very healthy. | D．They got along with each other. |
| A．Great Civilization of South Africa | B．The Evolution of Foods in History |
| C．Starches--the Important Food of Today | D．Big Findings--the Starches in Ancient Times |
2 . When most of us hear the word chocolate, the verb that comes to mind is probably “eat”, not “drink”, and the most proper adjective would seem to be “sweet”. But for about 90 percent of chocolate’s long history, it was strictly a beverage(饮料), and sugar didn’t have anything to do with it.
The Origin of Chocolate
Many modern historians have estimated that chocolate has been around for about 2000 years, but recent research suggests that it may be even older. In the book The True History of Chocolate, authors Sophie and Michael Coe prove that the earliest linguistic (语言学的) evidence of chocolate consumption dates back three or even four thousand years.
Valuable and Fashionable Chocolate Beverage
It’s hard to discover exactly when chocolate was born, but it’s clear that it was cherished from the start. For several centuries in pre-modern Latin America, cacao beans were considered valuable enough to use as currency. 100 beans could purchase a good turkey hen, according to a 16th-century Aztec document.
Sweetened chocolate didn’t appear until Europeans discovered the Americas and sampled (品尝) the native cuisine(烹饪). Chocolate didn’t suit the foreigners’ taste at first — one described it in his writings as “a bitter drink for pigs” — but once mixed with honey or cane sugar, it quickly became popular throughout Spain. By the 17th century, chocolate was a fashionable drink throughout Europe, believed to have nutritious, medicinal functions. But it remained largely a privilege of the rich until the invention of the steam engine made mass production possible in the late 1700s.
The Birth of Solid Chocolate
In 1828, a Dutch chemist found a way to make powdered chocolate. His product became known as “Dutch cocoa”, and it soon led to the creation of solid chocolate. In 1847, Joseph Fry created the first modern chocolate bar. By 1868, a little company called Cadbury was marketing boxes of chocolate candies in England. Milk chocolate hit the market a few years later.
Prosperous Chocolate Industry
In America, chocolate was so valued during the Revolutionary War that it was used instead of wages. Even now, statistics show that the humble cacao bean is still a powerful economic force. Chocolate manufacturing is a more than 4-billion-dollar industry in the United States, and the average American eats at least half a pound of the stuff per month.
1. The earliest chocolate was most probably____________.| A．a dish | B．a candy |
| C．a bar | D．a drink |
| A．The history of chocolate is at most 4,000 years |
| B．People around the world could buy things with chocolate |
| C．Chocolate was well paid attention to since it was born |
| D．An American at least eats a pound of chocolate per month |
| A．Because chocolate was so tasty and bitter |
| B．Because chocolate was sweetened with honey of cane sugar |
| C．Because chocolate was believed to be a source of nutrition |
| D．Because chocolate became a fashionable beverage |
| A．Chocolate beverage---chocolate bar—chocolate candies---milk chocolate |
| B．Chocolate bar—chocolate beverage---chocolate candies---milk chocolate |
| C．Chocolate bar—chocolate candies—milk chocolate—chocolate beverage |
| D．Chocolate beverage---chocolate candies---chocolate bar---milk chocolate |
3 . The United Kingdom has voted to leave the European Union, a historic decision that will reshape the nation^ place in the world and is already upsetting governments across the continent. The surprising turn of events caused a fall in the financial markets, with the value of the British pound and stock prices falling.
The campaign to leave the EU won by 52 percent to 48 percent. More than 17 million people in the UK—made up of England, Scotland, Wales, and Northern Ireland — voted to sever ties with the EU, a Political and economic partnership comprising 28 countries across Europe. About 16.1 million voted to remain.
The result raises serious questions about the future of the EU. The British go out from the union-nicknamed Brexit — is just the latest in a series of crises to annoy the EU. The alliance is already dealing with economic bad results from the global financial collapse of 2008, along with a record arrival refugees to Europe due in part to Syria’s civil war.
Some British citizens believe the EU has too much influence over Britain’s authority and that the country’s industries would be more profitable on their own. Others want Britain to reclaim control of its borders and reduce how many people enter the country to work They say the EU’s open-border policy allows unlimited numbers of immigrants to come in from poorer nations—and that those people take jobs from British workers. Those who campaigned to stay in the EU, meanwhile, argued that the UK and its economy is stronger within the alliance.
Now the UK will become the first nation to leave the European Union. The decision is a huge blow the alliance because Britain is one of its most powerful members. “The main impact will be massive disorder in the EU system for the next two years,” said Thierry de Montbrial, of the French Institute of International Relations. “There will be huge political change costs on how to solve the British exit.” The decision could also have a domino effect, he warned, with other countries following the UK’s lead and exiting the EU.
1. What does the underlined word “sever” mean?| A．Settle down. | B．Take over. |
| C．Break off. | D．Build up. |
| A．they can help immigrants to create more job chances |
| B．they expect the EU to have an open border policy |
| C．they want to set up their own authority |
| D．they will lead a better life on their own |
| A．More countries will do as the UK does. |
| B．Scotland win their independence from the EU. |
| C．The EU will pay back more money to the UK. |
| D．The economy in the EU will suffer loss. |
| A．The UK Wins Independence with Votes |
| B．The UK Votes to Leave the European Union |
| C．The UK Makes a Historic Decision Again |
| D．The UK Remains Separated from the World |
4 . Given the tradition of students bringing apples to their teachers, it somehow seems fitting that an old apple barn(谷仓)will find a new life as a one-room schoolhouse. And it is just as fitting that a retired schoolteacher will become the caretaker of that historic treasure.
My friend Velma, a teacher for more than 30 years, has been retired for some time now, but that doesn’t stop her giving history lessons at the old Englewood School, located on her family’s
California farm. The lovingly restored building was constructed around 1850 as a home for a woodsman and later was used as apple barn. Then, in 1870 it began a new life as a schoolhouse.
Originally located in the nearby Englewood meadow, it was now moved its current site in 1978 by Velma’s late husband and his brother, Robert and Richard, who thought it would help keep
Velma busy in retirement. No nails had been used in the original construction, so each piece of wood had to be carefully marked and the building was reassembled（重装）on its new site. The brothers worked with much care and hard work to ensure a perfect fit of mitered（斜接的）corners.
After the relocation, Velma and her family furnished the school with some of its original desks. They also added a collection of schoolbooks, the oldest dating back to 1845. Perhaps the school’s most cherished souvenir is the diploma of student Hettie Essig, who graduated on June 30, 1904. Hettie’s daughter, Flora, presented Velma with the precious keepsake.
Nowadays Velma gives tours to local schoolchildren and other groups, who learn what it was like to attend school back in the good old days. She has kids ring the school bell, recite the Pledge of Allegiance and sing “Good Morning to You” as they might have done in days gone by. Then, with twinkling eyes and much enthusiasm, she tells the history of the school, and gives a short sample lesson.
1. The Englewood School was originally built as __________.| A．a man’ s house | B．a schoolhouse |
| C．a restroom | D．an apple barn |
| A．Inspiring | B．Refreshing |
| C．fashionable | D．Challenging |
| A．The school’s original supplies |
| B．The collection of schoolbooks |
| C．The oldest schoolbook |
| D．The diploma of Hettie Essig. |
| A．The Good Old Days in the Schoolhouse |
| B．A Mysterious Building with a Long History |
| C．A Historic One-room Schoolhouse |
| D．A Teacher Devoted to Restoring Old Buildings |
