1.水资源的重要性;
2.水资源的现状;
3.发出节约水资源的号召。
注意:词数100左右,可以适当增加细节
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2 . Do you like cheeseburgers and French fries? How about dumplings or tacos?
Furthermore, staples, being made of steel, are hardly environmentally friendly. And they pose yet another danger.
What’s more, the open staple that we’re lucky enough to avoid when eagerly reaching into a bag of food poses a danger to anyone who handles the bag after we throw it away.
Why don’t we put an end to this practice and ensure that rice and bread remain our only “staple foods”, and not French fries?
A.But pain and misfortune awaits those who are not so fortunate. |
B.Let’s get rid of the fast-food monster and just use tape to close the deal. |
C.They can fall into food such as French fries and accidentally be consumed. |
D.Do you like any of them enough to reach into a shark’s mouth to get them out? |
E.The intention is good, because securely closing the bag helps ensure food safety. |
F.How many millions of the tiny staples are introduced each day into the food chain? |
G.And if we remove the staples before recycling a bag, it can also be time-consuming. |
1. 减少塑料污染的重要性;
2. “减塑捡塑”的倡议。
注意:1. 词数100左右;
2. 短文的题目已为你写好,可适当增加细节,使行文流畅。
Beat Plastic Pollution
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Japan said on Tuesday that it had decided to
The
“The Japanese government ignores concerns and strong opposition both at home and abroad. Such an
Greenpeace(绿色和平组织)criticized Japan’s plan and said there are other solutions that should
5 . Terrible weather events are harming the planet, and experts warn of even greater results to come. The sea ice loss and the Arctic ice melting (融化) caused by climate change have increased much in the last ten years. So they have pushed down the number of polar bears and seals while polar bears depend on sea ice for hunting seals.
According to the data from the WMO, temperatures on the Antarctica (南极洲) just hit 18.3℃, which is higher than the record of 17.59℃ in March, 2015. Moreover, temperatures in this area have warmed about 3℃ over the last 50 years. Although such temperatures might be considered pleasant for a picnic or a hiking trip, this is the Antarctica we are talking about. It is home to the most inhospitable environment on the planet because it is supposed to be an extremely cold place. In fact, the average temperature of the continent’s central area is -57℃.
Besides, many places are experiencing the extreme weather this summer. Australia is undergoing its worst drought (干旱) since the 1930s, leaving bushfires burning so long and causing many deaths. Meanwhile in Europe, crops in the northwest are suffering the driest weather in the past 80 years. Recently West Texas in America has also gone through its worst drought in more than 70 years, while floods have hit Eastern and Southern China.
“Climate change is bad for us human beings, which causes direct health problems. I’m afraid there will be more common events like the one that 30,000 to 50,000 persons died in Europe in 2003 due to the heat wave there,” Professor Schwartz said. “It will also cause more air pollution, diseases and lack of clean water and so on.”
1. What doesn’t bring down the number of polar bears according to this passage?A.Hunting. | B.Climate change. |
C.The sea ice loss. | D.The Arctic ice melting. |
A.comfortable to live | B.friendly to live | C.unhealthy to live | D.unfit to live |
A.Europe. | B.Australia. | C.America. | D.China. |
A.The whole planet is drier and drier. |
B.The Antarctica is warmer and warmer. |
C.Climate change is getting worse and worse. |
D.The number of polar bears is smaller and smaller. |
6 . Set 40 kilometers northeast of the city of Ambatondrazaka, the Zahamena National Park's landscape consists of (……组成) valleys surrounded by a flowing mountain range.
It has an overall land coverage of 64, 300 hectares, but only 42, 000 hectares is open to the public due to strict conservation (环境保护) reasons. It receives an average yearly rainfall level of about 6 feet and experiences frequent rain showers even during the dry season between April and October.
One really interesting thing about the Zahamena National Park is that the unique territory of its highland has paved the way for the development of several ecosystems that exist at the same time in this park. This is the reason why the types of wildlife living in one area are different in another, which makes it quite exciting to explore.
This protected area is divided into two parts, with a separate piece of land in the middle where many small villages are situated. These villages are inhabited (居住) by the members of the Sihanaka and Betsimisaraka ethnic groups.
The Zahamena National Park gets its name from the local Zahana Mena tree, an uncommon type of hardwood that grows in the lower regions of this protected area. It is characterized by its resilient (坚韧的) wood that can be rather challenging to cut, join, shape and carve even with modern tools.
Established as a strict natural highland reserve in 1927 (and one of the first of its kind in all of Madagascar), the Zahamena National Park was officially given its national park status (地位) in 1997 and was eventually opened to the public. Due to its remarkable territory and unique biodiversity, this national park was later listed as a key part of the collective UNESCO World Heritage Site called the Rainforests of the Atsinanana in 2007.
1. What can we learn about the Zahamena National Park?A.It is surrounded by the city of Ambatondrazaka. |
B.It receives little rainfall during the dry season. |
C.It is partially open to the public. |
D.It is divided into three parts. |
A.The strict conservation rules. | B.The unique weather conditions. |
C.The special territory of its highland. | D.The influence of several local villages. |
A.An ethnic group. | B.A type of local tree. |
C.A traditional tool. | D.A nearby city. |
A.A brief introduction to the Zahamena National Park. |
B.A complete guide to visiting the Zahamena National Park. |
C.Details of Zahamena National Park's great efforts in conservation. |
D.Reasons for Zahamena National Park becoming a UNESCO World Heritage Site. |
1. What made Maya Bay draw too many tourists since 1999?
A.The convenient location. |
B.A famous Hollywood movie. |
C.Its first opening to the public. |
A.To develop it. | B.To do research. | C.To protect the natural life. |
A.300. | B.2,000. | C.4,000. |
A.Surf the Internet. | B.Read some magazines. | C.Book a holiday. |
White Dews is the 15th solar term. It begins when the Sun reaches the celestial longitude of 165° and ends
When White Dews comes, the temperature decreases further and the weather gets
There is typical autumn weather during White Dews period when hot summer is
1. Which statement do most people agree with?
A.People should eat less meat. |
B.The endangered animals shouldn’t be hunted. |
C.Hunting is likely to go down worldwide. |
A.It is illegal to hunt them. |
B.Other animals don’t kill them. |
C.Their natural environment is improving fast. |
A.The deer cause car accidents. |
B.The deer damage the crop. |
C.The deer harm other animals. |
A.It is considered to be cruel. |
B.It leads to more human deaths. |
C.It doesn’t keep their numbers down. |
10 . PFAS are found in nonstick pans, water-proof fabrics and food packaging. They’re called forever chemicals because of their ability to stick around and not break down. Now, using a bit of heat and two relatively common compounds, researchers have degraded (降解) the chemical in the lab.
While some scientists have found relatively simple ways of breaking down select PFAS, most degradation methods require harsh processes using intense pressure — in some cases over 22 mega-pascals — or extremely high temperatures — sometimes upwards of 1,000℃ — to break the chemical bonds.
William Dichtel, from Northwestern University in Evanston, and his team experimented with two substances found in nearly every chemistry lab; sodium hydroxide (氢氧化钠), also known as lye, and a solvent (溶剂) called DMSO. The team worked specifically on a group of forever chemicals which contain a large percentage of PFAS.
When the team combined chemicals with the lye and DMSO at 120℃ and with no extra pressure needed, the carbolic acid (羧酸) fell off the chemicals and became carbon dioxide. “What happened next was unexpected, ” Dichtel said. The loss of the acid helped degrade the chemicals into fluoride ions (氟离子) and smaller carbon-containing products, leaving behind no harmful by-products.
“It’s a neat method; it’s different from others that have been tried,” says Chris Sales, an environmental engineer at Drexel University in Philadelphia who was not involved in the study. “The biggest question is how this could be adapted and scaled up. Understanding this mechanism is just one step in undoing forever chemicals,” Sales said.
This process wouldn’t work to deal with PFAS in the environment, because it requires a concentrated amount of the chemicals, but it could one day be used in wastewater treatment plants, where the pollutants could be filtered out of the water, concentrated and then broken down.
1. What can we learn about the previous ways to break down PFAS?A.They’re eco-friendly. | B.They’ve been widely used. |
C.They’re difficult to operate. | D.They’re regarded as useless. |
A.They experimented with different solvents. |
B.They tried two very common substances. |
C.They tested every group of forever chemicals, |
D.They exposed chemicals to extreme temperatures. |
A.Environmentally-friendly reactions occurred. |
B.The carboxylic acid became carbon dioxide. |
C.No extra pressure was needed for the trial. |
D.The lye and DMSO could work at 120℃, |
A.It is difficult to deal with PFAS in the environment. |
B.This mechanism will soon be used in the environment. |
C.The method will be applied to different kinds of chemicals. |
D.More research is needed before the method is widely used. |