Both Li Bai and Du Fu are ______ (well-known) for writing so many great poems.
To go for a party, Sally is choosing suitable shoes to ______ (go well with) her new silk dress in the shopping mall.
Many visitors come to Beijing and hope to watch the raising of the national ______(旗帜).
Huawei was the _______(获胜者) in the worldwide smartphone market in April, 2020.
Herman planted the hot peppers (胡椒) in his five-hectare field in his town. The 36-year-old man put up a sign reading “Africa Hema Village” in Chinese, English and his native language. His first harvest will start this
month. Herman studied in China from 2011 to 2018, receiving his master’s degree and a doctorate in environmental science. He returned to Rwanda in 2018 with his wife, Yang Hong, who is from China, and started his own business. Hema Xiansheng CEO Hou Yi visited Rwanda to find quality products to bring to the Chinese market. Hot peppers were one of his discoveries. The couple helped Hou’s team, from research to field trips, testing production processes (加工) and so on. They also helped Hema Xiansheng’s purchasing (采购) manager, Chen Huifang, when she led a team of eight to visit Rwanda to research the possibilities of making hot pepper products that suit Chinese preferences.
“We wore rubber gloves when we touched them. Our fingers still felt hot the next day,” Chen said. Their research and development team spent four days studying and cooking the peppers. Transporting fresh hot peppers to China proved difficult, so the fresh peppers can’t be imported (进口) into China. Then Chen’s team decided to perform basic processing in Rwanda before shipping. Processing requires a careful balance. Too much salt will make the peppers less delicious. Too little, and the peppers may go bad. Because plastics mustn’t be used in Rwanda, they had to find proper ways to carry the pepper sauce. The material they first used couldn’t stand the long flights. Now Chen is happy to see that the pepper sauce has sold well in Hema’s offline and online stores.
Herman pointed out that few local farmers grow hot peppers because the market is small. A small amount is sold to Europe. And local need is limited due to its spiciness. So, about half the harvest is wasted every year. A young man in Rwanda will only make 10 yuan ($1.4) a day by working in the cities, but if they grow hot peppers due to Hema’s orders, they can make 50 to 60 yuan a day. Herman expressed his willingness to introduce more people to make more money by farming, rather than working for lower incomes, when e-commerce (电子商务) can bring greater needs and sales.
“It’s a chance for Rwandan people to join the new field and change their lives,” Herman said, “Through building more Hema Villages, Rwanda has the chance to become a country of digital agriculture.”
1.“Africa Hema Village” in Paragraph 1 is a place _______.
A.called Hema in Africa B.where Herman’s wife was born
C.providing hot peppers for Hema D.for Africans to buy hot peppers
2.Why should the peppers be processed before shipping to China? Because _______.
A.a balance is needed when the processing is done
B.fresh hot peppers mustn’t be imported into China
C.in Rwanda, people are not allowed to use plastics
D.during shipping, fresh hot peppers are easy to go bad
3.If a young man in Rwanda grows hot peppers for Hema, he may get about ______.
A.10 dollars a week B.1,600 yuan a month
C.500 dollars a year D.16,000 yuan half a year
4.What can we learn from the passage?
A.Many types of products have been offered in Africa Hema Village.
B.Hot peppers from Africa have a large market all around the world.
C.Hema Xiansheng paid for Herman’s seven-year education in China.
D.Herman hopes to do something to improve people’s lives in Rwanda.
Do you like Physics or Chemistry? Matter (物质) is always changing, either physically or chemically. If a material goes through a physical change, it is still the same material. During a chemical change, one kind of matter changes into another completely different kind of matter. For example, when we burn wood or cook fish, materials change. People use chemistry every day in the kitchen. The food we eat has many different natural chemicals. Many of the chemicals in food are necessary parts of a healthy diet.
Much of the food we eat has been changed in some way from its original form. The changes that food undergoes may be chemical or physical. If a change does not affect the food’s chemical composition, we call it a physical change. For example, melted (溶解的) cheese has gone through a physical change. It gets softer when it is heated but it is still the same type of material. Any change that changes the chemicals in the food is a chemical change. Bread contains carbohydrates, which are chemicals made up of carbon, hydrogen, and oxygen. When bread is baked (烘焙), the carbohydrates break down into black carbon and water. The carbon gives the bread a dark color and a crunchy texture (质地). The water goes into the air.
To get a closer look at the chemistry of baking, let’s watch how a carrot cake is made. The main steps of baking any cake are mixing the ingredients (材料) and baking them together. In the course of making cakes, the dry ingredients are mixed first. They are flour, sugar, salt, baking soda, baking powder and spices. Flour gives the cake structure. Sugar helps to make it sweet. Salt strengthens the cake batter. Baking powder and baking soda make the cake rise.
Next, the carrots may be added to the cake. These help give the carrot cake its flavor, texture, and color. The other ingredients in the carrot cake are oil and eggs. The oil makes the cake tender and moist. Eggs serve two purposes—the whites help the cake to rise, while the yolks (蛋黄) give it a creamy texture. All of these ingredients form a mixture. This mixture can be separated into its different components (成分) although it is very difficult. Once the cake mixture is formed, it’s poured into a cake pan and baked in an oven. The heat from the oven has caused chemical changes to take place. The cake is finished and the ingredients cannot be separated.
1.The material doesn’t change when we _______.
A.melt ice cream B.burn paper C.bake apple pies D.cook beef
2.What’s the correct order of baking a carrot cake in the passage?
a. Carrots, oil and eggs are added. b. The dry ingredients are mixed.
c. The mixture is baked in an oven. d. Baking powder and soda make the cake rise.
e. Preparing some dry ingredients. f. The heat from the oven causes chemical changes.
g. The ingredients cannot be separated. h. The mixture is poured into a pan
A.b-a-h-f-g B.b-h-c-d-f C.e-d-c-a-g D.e-c-a-g-d
3.After reading the passage, we know that ________.
A.water and carbon can give the cake a dark color and a crunchy texture
B.people can separate the mixture of eggs and oil into different components
C.chemicals in different kinds of food that people eat are bad for their health
D.sugar and salt can’t be put into the mixture to make a cake at the same time
4.The passage mainly helps us to _______.
A.look at the steps of baking cakes closely
B.learn how to make carrot cakes at home
C.have a healthy diet with natural chemicals
D.understand physical and chemical changes
