1 . In 2019, the world generated 54.6 million tons of e-waste. However, just 17.4 percent of it was formally collected and recycled. Since 2014, the amount of e-waste recycled has grown by 1.8 million tons—a relatively small amount, considering that the amount of e-waste generated increased by 9.2 million tons in the same period.

Global reserves of some elements, such as platinum, are supposed to be fully used up within 15 years if the proportion of recycled stocks entering production doesn’t increase. E-waste and EV batteries are currently recycled through processes called pyrometallurgy (火法冶金术) and hydrometallurgy (湿法冶金术). However, they involve burning temperatures with a high energy demand and deep carbon footprint, and poisonous chemicals which are harmful to the environment. Alternatives are therefore being sought.

A team of scientists from the University of Coventry are extending one such alternative. They have been using non-poisonous bacteria to oxidize and recover the precious metals—a process known as “bioleaching”. They have shown that copper is widely recoverable from e-waste, and that all metals present in EV batteries can be recovered by using microbes (微生物). If extended, bioleaching facilities would mean that manufacturers of EV batteries and other electronic goods would be able to recover metals locally, relying less on costly exports to recycling centers abroad.

“At present, a key limitation for e-waste recycling is the lack of certification detailing the types and amounts of metals contained in electronic goods. But with an efficient recycling process appearing, manufacturers have the motivation to use more recycled material in their products, which will change the very design of electronics goods. It’s about closing the loop of a product’s life cycle,” said the leader of the Bioleaching Research Group, Sebastien Farnaud.

Ultimately, bioleaching technology is born out of the idea of creating a truly circular process for the things that we consume. We need to shift from a mindset and economy where we see waste as an end product, to one where there isn’t even a start or an end at all.

1. What do the statistics in Paragraph 1 indicate？

A．People pay no attention to e-waste recycling.

B．The recycling rate of e-waste is comparatively low.

C．E-waste has caused serious environmental problems.

D．The amount of e-waste is sharply increasing every year.

2. What is the disadvantage of current ways of recycling e-waste？

A．They are not environmentally friendly.

B．They only apply to certain e-waste.

C．They generate metals with a complex process.

D．They cause a sharp rise in local temperatures.

3. What do we know about the bioleaching technology？

A．It has been applied abroad.	B．It releases no poisonous gas.
C．It recovers metals by microbes.	D．It promotes the local export trade.

4. The text is most probably a part of ______.

A．a travel guide	B．a fiction novel
C．a health magazine	D．a scientific journal

3 . 阅读下面短文，在空白处填入一个适当的单词或括号中单词的正确形式。

An island off the coast of Cape Cod is open to the public for the first time in 300 years. Sipson island    1    (own) privately since 1711, when it was sold to White settlers. Now, the new Sipson Island Trust,with the help of a local non-profit, hopes to renew and care for the island,    2     (use) the Native American values to see land    3    a gift for all to use.

It is really important for us to be able to communicate the     4     (important) of its history,and teach the values of those that lived on the island before 1711. President Blough told CNN.

The 24-acre island, which opens on Saturday ,    5    (locate) just off the coast of Cape Cod in    6    area known as Pleasant Bay,     7    is of critical environmental concern. When it was for sale,there were a number of conservation organizations who wanted to find a way to raise the money to protect it,preserve it,and make it    8     (access)to the public, Blough said.

Now it is    9     (full)open to the public. Visitors are encouraged to access the island from the eastern shore,     10    only shallow boats under 22 feet can land due to the sensitive ecosystem in the water.

4 . I experienced years of loneliness as a child.     1     His friends teased him about babysitting his sister and his interests were far different from mine. With no other kids of my age in the neighborhood, I had to spend hours by myself.

A bright spot for me turned out to be reading. My love of the written word began early as my mother read to me every evening.     2     I started reading books on my own before age 5 and my mother took me to the public library once a week to borrow several books. I quickly graduated from typical children’s books to ones with fewer pictures and longer chapters. Reading opened new worlds to me.     3    

My mother also encouraged me to make what I wanted. I tried making toy cars with cardboard boxes and constructing buildings from leftover cardboard and bits of wood my father gave me. When my mother saw my creations, she told me how creative my designs were.     4     I learned a lot about how to extend the life of objects and transform them into something new and useful. It was a trait(特点) others found helpful, and I soon had friends who wanted to make things with me.

    5    My parents made it a point for their two kids to spend time outside, no matter the weather or season. My brother, of course, raced off to be with his friends, while I had plenty to do myself. There was making leaf houses in autumn, ice skating in winter, and so much more. They’re all memories I treasure today.

A．I wasn't alone any longer.

B．I enjoyed reading stories aloud.

C．I was invited to play with another kid.

D．I loved the colorful photographs in the books.

E．Another habit I formed early was being outdoors.

F．Thus, I began my lifelong interest in making things.

G．My older brother couldn’t be bothered to play with me.

5 . I am an active playgoer and play-reader, and perhaps my best reason for editing this book is a hope of sharing my enthusiasm for the theater with others. To do this I have searched through dozens of plays to find the ones that I think best show the power and purpose of the short play.

Each play has a theme or central idea which the playwright(剧作家) hopes to get across through dialogue and action. A few characters are used to create a single impression growing out of the theme. It is not my intention to point out the central theme of each of the plays in this collection, for that would, indeed, ruin the pleasure of reading, discussing, and thinking about the plays and the effectiveness of the playwright. However, a variety of types is represented here. These include comedy, satire, poignant drama, historical and regional drama. To show the versatility(多面性) of the short play, I have included a guidance play, a radio play and a television play.

Among the writers of the plays in this collection, Paul Green, Susan Glaspell, Maxwell Anderson, Thornton Wilder, William Saroyan, and Tennessee Williams have all received Pulitzer Prizes for their contributions to the theater. More information about the playwrights will be found at the end of this book.

To get the most out of reading these plays, try to picture the play on stage, with you, the reader, in the audience. The houselights dim(变暗). The curtains are about to open, and in a few minutes the action and dialogue will tell you the story.

1. What do we know about the author from the first paragraph?

A．He has written dozens of plays.	B．He has a deep love for the theater.
C．He is a professional stage actor.	D．He likes reading short plays to others.

2. What does the author avoid doing in his work?

A．Stating the plays’ central ideas.	B．Selecting works by famous playwrights.
C．Including various types of plays.	D．Offering information on the playwrights.

3. What does the author suggest readers do while reading the plays?

A．Control their feelings.	B．Apply their acting skills.
C．Use their imagination.	D．Keep their audience in mind.

4. What is this text?

A．A short story.	B．An introduction to a book.
C．A play review.	D．An advertisement for a theater.

6 . Roughly the size of a soda can, sitting on a bookshelf, a relatively harmless device(设备) may be turning friends away from your home. The elephant in your living room is your Internet-connected camera, a device people are increasingly using for peace of mind in their homes. But few stop to think about the effect these devices may have on house guests. Should you tell your friends, for instance, that they’re being recorded while you all watch the big game together?

"It’s certainly new territory, especially as home security cameras become easier to fix," says Lizzie Post, president of the Emily Post Institute, America’s distinguished manners advisors. " I think it will be very interesting to see what manners appear in terms of whether you tell people you have a camera or not, and whether guests have a right to ask that it be turned off, if it’s not a security issue. "Post wants to make clear that she’s not talking about legal rights, but rather personal preference.

When it comes to security cameras, Post says it’s a host’s responsibility to make sure guests feel comfortable within their home. If the host casually acknowledges that there is a camera in the room by telling a story about it, that may be enough to provide an opening for a guest to say if they are uncomfortable.

However, if a contractor(合约工)is working in your home, you don’t need to tell them that there are cameras watching. Then again, the camera can also work in contractors’ favor. "If anything does go wrong while they’re in the house, they don’t want to be blamed for it," she says. "In fact, the camera could be the thing that proves that they didn’t steal the $20, or knock the vase off the table.

1. The visitors are concerned that the security camera may .

A．threaten their health	B．spoil their peace of mind
C．disturb their privacy	D．affect their preference

2. What is a host’s responsibility concerning the security camera?

A．Indicating its position.	B．Making their guests feel at ease
C．Turning it oil in time.	D．Having a casual talk with guests.

3. How can the home security camera benefit contractors working in your home?

A．It can prevent the accidents happening.	B．It can prove their innocence.
C．It can record their working progress.	D．It can make their work more enjoyable.

4. What’s the author’s attitude towards the security camera?

A．Negative.

B．Pessimistic.

C．Favorable.

D．Objective.