①All plants and animals are connected and depend upon one another. These connections create a web of different types of life that are able to protect themselves from damage. However, population growth and climate change are leading to less biodiversity (生态多样) and putting humans in danger. So what can we do to help protect biodiversity and our environment?
②Avoid buying from companies that do damage the environment. Remember, companies will sell what people want to buy, so tell companies that you want products that do not hurt our planet.
③The less garbage you throw away, the less likely it is that natural habitats (栖息地) will be used for landfills (垃圾填埋). Try to follow the “Three Rs” to produce as less waste as possible.
④Reduce: Don’t buy products you don’t need. When you do buy things, try to make choices that lead to a smaller amount of garbage. For example, buy things with a little bit of packaging (包装) or none at all.
⑤Reuse: Throw fewer goods away by using things more than once. One easy example is taking a reusable bag to the grocery store.
⑥Recycle: When you do have to throw something away, recycle it so it can be made into something useful again.
⑦Fossil (化石) fuels are bad for the environment. The climate change they cause also leads to habitat loss for at-risk animals. So reducing carbon emissions (碳排放) is one effective way to protect biodiversity. You could start by using less energy. Walk or ride your bike instead of driving, and think about green energy like solar power.
1. According to the passage, which of these are causing problems for the environment?| A．Creating many kinds of products. | B．The forming of a web of living things. |
| C．Turning land into natural habitats. | D．Population growth and climate change. |
| A．Recycling what you don’t need. | B．Buying products which you need. |
| C．Buying over-packaged products. | D．Using reusable bags more than once. |
A． | B． | C． | D． |
| A．To show the importance of developing green energy. |
| B．To remind us about environmental problems we met. |
| C．To teach us the ways we can do to protect the animals. |
| D．To show us things we can do to protect the environment. |
相似题推荐
【推荐1】
| Nairobi, Kenya Green vehicles (车辆)
| Paris, France A cable car project approved
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| Nepal High tea on Mount Qomolangma
| Oxford, England The owner fights roof-shark rules
|
1. Which of the following is good for the environment?
| A．A green vehicle. | B．A roof-shark rule. |
| C．A cable car project. | D．The high tea party on the mountain. |
| A．About 15 minutes. | B．About 30 minutes. |
| C．About 45 minutes. | D．About 60 minutes. |
| A．In a science magazine. | B．In a newspaper. |
| C．In a travel book. | D．In a history book. |
【推荐2】Everyone knows by now that plastic pollution is a huge problem for the environment. Beijing, for example, has dealt with this by banning (禁止) thin plastic bags, plastic tableware (餐具) and other plastic items in supermarkets, restaurants and hotels since May 1, according to CGTN.
But an even better solution might be on the way. Researchers at a French company called Carbios have discovered a bacterial enzyme (细菌酶) that can break down plastic. The enzyme, which was first found in compost (堆肥) leaves, turns plastic into chemical “building blocks” that can then be used to create new products, according to the Guardian.
The new enzyme was uncovered in research that was published last month in the journal Nature. Researchers studied over 100,000 microorganisms (微生物) to find one that could break down plastic quickly. The leaf compost enzyme was first discovered in 2012. Scientists changed its genes (基因), allowing it to break down 90 percent of one ton of plastic in less than 10 hours.
“It had been completely forgotten, but it turned out to be the best,” said Professor Alain Marty, chief science officer at Carbios.
The enzyme especially breaks down PET, a type of plastic that is most commonly used to produce plastic bottles and food packaging (包装). It is the fifth most common type of plastic that we use.
Carbios said it is working together with companies like Pepsi and Nestle – major consumers of plastic themselves – to develop their research and start using the enzyme on an industrial scale (范围), according to Forbes.
1. What do we know about the enzyme?
| A．It is a type of bacteria. |
| B．It can break down plastic quickly. |
| C．It is the fifth-most common type of bacteria. |
| D．It can break down PVC. |
| A．Where the scientists found the new enzyme. |
| B．How the scientists changed the enzyme’s genes. |
| C．How the scientists found the new enzyme. |
| D．When the scientists found the new enzyme. |
| A．It was too late to find the new enzyme. |
| B．The new enzyme was forgotten by experts. |
| C．They forgot to change the enzyme’s genes. |
| D．Better late than never. |
| A．Carbios will work together with companies that use a lot of plastic. |
| B．Carbios will keep looking for a more efficient enzyme. |
| C．Carbios will turn its focus toward production. |
| D．Carbios will search for more companies like Pepsi to work with. |
| A．How to protect our environment. |
| B．A natural way to recycle plastic. |
| C．Why Beijing has banned plastic items in many public places. |
| D．How Carbios discovered a bacterial enzyme. |
【推荐3】① Man has known more and more about space today. Space is not only wonderful but also dangerous. While working in space, astronauts are facing danger.
② Scientists have found out that radiation (辐射) is the greatest danger to astronauts in space. When astronauts are working in space, they are in danger of radiation from the sun and other stars, which is bad for their health. The damage of radiation is difficult to discover until their children or even grandchildren are born. Some special medicine may work a little, but there isn’t really helpful medicine.
③ Space rubbish is also a great danger to astronauts. There are 9000 man-made (人造) things flying in space. About 30% of these are man-made satellites (卫星), 10% are spaceships, and others are space rubbish. Even a small piece of these knocked against a spaceship window and did some damage. Scientists are watching and telling any possible danger all the time. They are working on helpful ways to do with space rubbish.
④ Although space is really dangerous, everyone on the earth is interested in it. In the near future, it may become usual for people to spend a few days in a space hotel. We may even choose to leave the earth and live in space for a few years. So we should care for space and do something to help improve the space environment.
1. Who is in danger of radiation in space?| A．Scientists’ children. |
| B．People on the earth. |
| C．Astronauts working in space. |
| A．保护 | B．伤害 | C．竞争 |
A．  | B． | C．  |
A． | B． | C． |
| A．Rubbish: possible danger! |
| B．Radiation: the most dangerous! |
| C．Space: wonderful but dangerous! |
Have you gotten vaccinated (接种疫苗) ? You might hear this question a lot when you go back to school. A COVID-19 vaccination drive（行动） for kids aged 12~17 is under way across China.
“The incidence rate（发病率）among teenagers was not high when COVID-19 began last year. But more data（数据）shows that they can still get COVID-19 and even die from it,” said Sun Xiaodong, the deputy director（副主任）of the Shanghai Center for Disease Control and Prevention（疾控预防中心）.
To keep people safe from COVID-19, children and teenagers must get vaccinated to reach herd immunity（群体免疫）. “If we only vaccinate adults, it is hard to reach the 80% goal（目标）,” Sun added.
In Beijing, some places started to vaccinate high school students on July 20 and middle schoolers in early August, Xinhua reported. As of August 17th, Beijing had given out 38.09 million doses（百万剂）of COVID-19 vaccines and 571,300 were given to people aged 12~17, according to the city’s health department.
Some parents are worried about the safety of vaccination. Shao Yiming, a scientist at the Chinese Center for Disease Control and Prevention, said most teenagers will get either the Sinopharm or Sinovac Biotech vaccine（国药集团或科兴生物技术疫苗）. Both are safe for people aged 3 to 17, Shao said.
1. What can we know from Sun’s words?| A．80 percent of adults in China are vaccinated. |
| B．More teenagers need to get vaccinated. |
| C．Teenagers have gotten more vaccinations than other groups. |
| D．No teenagers have died from COVID 19. |
| A．38.09 million. | B．571,300. | C．13 percent. | D．80 percent. |
| A．Parents should care more about the safety of vaccines. |
| B．Researchers are developing a new vaccine for teenagers. |
| C．Teenagers will get both the Sinopharm and Sinovac Biotech vaccines. |
| D．There are safe vaccines for teenagers aged 12~17. |
| A．How to keep teenagers safe? | B．Rising COVID-19 infections. |
| C．What COVID-19 does to teenagers? | D．Vaccinations for teenagers. |
【推荐2】Every year thousands of young people in Britain try some volunteer work. They give their time to help people in need. For example, they work in schools or hospitals, or they do something helpful for the environment. Some young people even choose to go to other countries and work as volunteers there. There are a lot of volunteer organizations in Britain. One of the most famous is British Red Cross, which organizes medical voluntary activities. It also helps young people learn life skills, helps the elderly and cares for disabled people.
There are many reasons why young people try volunteer work. Some of them want to get working experience from volunteer work, while others just want to visit some places of interest in different cultures. Take Kate Smith as an example. Kate is an 18-year-old girl, who lives in Wales. Next year she will go to university to study Spanish in Belize. Now she is living with a host family there. The following is what she wrote in her blog:
 Kate SmithTwo hours ago Welcome to my blog! |
My life here is not boring at all. I’m staying with a family here and I help with the cooking and the cleaning. I’m working with other people to protect the coral reefs (珊瑚礁) in the sea near Belize. The reefs here are very beautiful, but if the sea water is badly polluted, the coral will die. I’m helping to do research on the coral and the fish that live around the reefs. All over the world, coral reefs are dying. We need to do something about the problem before it’s too late. I don’t get any money for my work, but that’s OK. I love my work here, and I’m learning a lot about the people of Belize! Before I go back to continue my education, I want to travel around Belize and Central America. |
| A．A British medical school. |
| B．An international hospital. |
| C．A volunteer organization. |
| D．An environmental group. |
| A．Kate will become a university student in Wales. |
| B．Kate is now living with a host family in Belize. |
| C．Kate loves her job because she can get a lot of money. |
| D．Kate will travel around Belize after finishing university. |
| A．Work in schools and hospitals. |
| B．Do something for the university. |
| C．Help with cooking and cleaning. |
| D．Save the coral reefs in the sea. |
| A．To share a university student's travel blog in Belize. |
| B．To offer young people some interesting volunteer jobs. |
| C．To show the beautiful coral reefs in Central America. |
| D．To introduce British young people's volunteer work. |
【推荐3】Victor's class has a newspaper. It is called The Weekly Times. Every week some of the children in Victor's class write things for this newspaper.
Sometimes they write a story. Sometimes they write a poem（诗）.
Victor likes writing about holidays. Here is one about some holidays.
The WEEKLY Times Holidays By Victor Which is your favorite holiday? I like New Year best. Chinese people welcome their New Year with a parade (游行) . Usually people dress up like dragons, lions or other animals in the parade.  People in India say hello to the New Year by lighting candles.  Children in one town in New Mexico （新墨西哥州）, the USA, dress up like old people on New Year’s Day. In Mexico, May 5th is a holiday. Lots of children dance on that day. We all like holidays. They bring us happiness.  |
1. The Weekly Times is the name of a__________.
| A．magazine | B．story | C．poem | D．newspaper |
| A．wear a dress | B．eat up | C．put on special clothes | D．dance or sing |
| A．dress up like an animal | B．light candles | C．dress up like old people | D．dance in a parade |
| A．two | B．three | C．four | D．five |
