It is estimated that hopefully about 0. 5 bil...

It is estimated that hopefully about 0. 5 billion families_______5G terminals by 2025, when there is a sharp drop in price.

A.have used B.will have used

C.will be using D.are using

高三英语单项填空中等难度题查看答案及解析

If plastic had been invented when the Pilgrims (清教徒移民) sailed from Plymouth, England, to North America and the Mayflower had been stocked with bottled water and plastic-wrapped snacks, their plastic waste would likely still be around, four centuries later. If the Pilgrims had been like many people today and had simply thrown their empty bottles and wrappers over the side, Atlantic waves and sunlight would have worn all that plastic into tiny bits. And those bits might still be floating around the world’s oceans today, waiting to be eaten by unfortunate fish, and eventually perhaps by one of us.

Because plastic wasn’t invented until the late 19th century, and production really only took off around 1950, we have a mere 9.2 billion tons of the stuff to deal with. Of that, more than 6.9 billion tons have become waste. And of that waste, a shocking 6.3 billion tons never made it to recycling facilities.

No one knows how much unrecycled plastic waste ends up in the ocean, Earth’s last sink. In 2015, Jenna Jambeck, a university of Georgia engineering professor, caught everyone’s attention with a rough estimate: between 5.3 million and 14 million tons each year just from coastal regions. Most of it isn’t thrown off ships, she and her colleagues say, but is dumped carelessly on land or in rivers, mostly in Asia. It’s then blown or washed into the sea. It’s unclear how long it will take for that plastic to completely biodegrade (降解). Estimates range from 450 years to never.

Meanwhile, ocean plastic is estimated to kill millions of marine animals every year. Nearly 700 species, including endangered ones, are known to have been affected by it. Some are harmed visibly-strangled (勒死) by abandoned fishing nets. Many more are probably harmed invisibly. Marine species of all sizes, from fish to whale, now eat microplastics, the bits smaller than one-fifth of an inch across. On Hawaii’s Big Island, on a beach to which no paved road, I walked ankle-deep through mocroplastics. After that, I could understand why some people see ocean plastic as an approaching disaster, worth mentioning in the same breath as climate change.

And yet there’s a key difference: Ocean plastic is not as complicated as climate change. There are no mean waste deniers (否认者), at least so far. To do something about it, we have to remake our planet’s entire energy system.

“This isn’t a problem where we don’t know what the solution is,” says Jambeck. “We know how to pick up garbage. Anyone can do it. We know how to deal with it. We know how to recycle.” It’s a matter of building the necessary institutions and systems, she says--ideally before the ocean tums, for centuries to come, into a thin soup of plastic.

1.In the first paragraph the author emphasizes the fact that ______.

A.British people migrated to America four centuries ago

B.people have kept doing research in plastic for four centuries

C.there was no plastic pollution four centuries ago

D.plastic waste would remain in the ocean for four centuries

2.How are marine animals harmed invisibly by ocean plastic?

A.They eat microplastics.

B.They drown in microplastics.

C.They are coated with waste plastic bags.

D.They are struggling in abandoned plastic nets.

3.Which of the following statements is TRUE according to the passage?

A.People all agree reducing plastic production is the solution.

B.People tend to agree plastic waste has caused ocean plastic.

C.It has been scheduled to reverse the trend of climate change.

D.It has been scheduled to reverse the trend of ocean plastic.

高三英语阅读选择中等难度题查看答案及解析

It is hoped that you can make some adjustments about the quality of your service ________the reactions of the customers.

A．in return for  B．in response to                   C．in favor of    D．in charge of

高三英语单项填空中等难度题查看答案及解析

What is a family? Why does it matter? What does it teach us that we can’t learn on our own? These questions seem especially relevant in the holiday season when it is often our tradition to gather as families and celebrate together.

My mother was one of twelve children. As they grew up, married and had children of their own, most of them lived near enough to gather for holidays at my grandparents’ home in a small town in the mountains of North Carolina.

I don’t recall getting many gifts from them .I remember the sense of belonging, of being part of something that assured me I was loved and not alone.

I delighted in the laughing, playing and fighting with my crazy cousins. I watched my granddad and uncles sit on the porch, rain or shine, smoking and joking, arguing about politics and trying to solve the problems of the world. I listened to my grandmother, mother and aunts stir (搅拌) pots on the stove and talk about their lives, hopes, dreams and disappointments, and gossip about any sister who failed to show up.

The food was always plentiful and delicious-country ham, sweet potatoes, green beans, biscuits and my grandmother’s banana pudding. But for me, the food was never the highlight. The highlight was simply being together. A family.

However, they’re all gone now. My parents and grandparents, my aunts and uncles have left this world for the next. My cousins are scattered here and there. And yet the memories linger, along with the love that we shared.

I treasure those memories and the things they taught me. They told me that families aren’t perfect, but they prepare us to find our way in an imperfect world. They made me realize that all families are crazy in their own particular ways.

My husband and I are growing a new family, while keeping close to the surviving members of the families. It’s a beautiful blend (混合) of kindness, traditions, nurturing (养育) and friendships, which grows year after year.

I hope this holiday season will fill you with lovely memories of the family that raised you, and surround you with all the people who mean “family” to you now.

1.What do we know about the author’s family according to the article?

A.She didn’t get on well with her cousins.

B.Her grandpa and uncles were politicians.

C.Her family delighted in their gatherings.

D.The female members liked to show off.

2.The author appreciated the gatherings mainly because _______.

A.there was a lot of inviting food

B.special gifts were selected thoughtfully

C.they brought the family closer together

D.she got to see relatives who seldom visited

3.What does the underlined word “linger” in paragraph 6 probably mean?

A.Disappear. B.Remain.

C.Increase. D.Fade.

4.What did the author learn from her family?

A.Good families should live together.

B.Imperfect families may help us adjust to the world.

C.Memories of perfect families deserve treasuring.

D.It’s necessary to create crazy family traditions.

高三英语阅读选择中等难度题查看答案及解析

It is estimated that more than half the world’s population is bilingual (双语的), and in an increasingly globalised world, there are obvious benefits of speaking more than one language. However, for many years, parents were advised not to teach their children to speak more than one language from birth. Learning two or more languages simultaneously (同时) was believed to cause confusion and slow down academic development. While it is certainly true that children who are learning to speak more than one language as their mother tongue will often mix the languages up or speak a little later, these are temporary problems, and there is no reason to avoid teaching a child more than one language.

In fact, there are plenty of reasons to encourage your child to become bilingual from birth. As well as the obvious benefits of being able to communicate with more people, and the possibility of earning more money, children who speak more than one language have been shown to score more highly in achievement tests at school. This is true for mathematics as well as tests of verbal (言语的) skills.

And in later life it has been found that bilinguals, on average, will tend to develop Alzheimer’s disease five years later than monolingual speakers. Speaking three or more languages offers even more protection. It seems that the increased number of connections within the brain allows bilinguals to cope better with brain damage.

But is it too late if you haven’t already learned a second language in childhood? It used to be thought that the adult brain was very fixed, but recent research has shown that we continue to develop new connections in the brain throughout our lives, meaning that it’s perfectly possible to learn another language to a high standard. Older learners are less likely to have native-like pronunciation, but they are better at learning vocabulary as they are able to use far more skills and strategies than children. And learning a language is like using a muscle – the more you use it, the stronger it gets, meaning that you will find your third language easier than your second, and so on.

1.Why shouldn’t parents be discouraged from teaching their children to be a bilingual?

A. Children’s confusion over two languages will not last long.

B. Children will not mistake one language for the other.

C. Parents should begin to teach a second language early.

D. Parents’ guidance will help children tell two languages apart.

2.Which of the following is NOT a possible benefit of being a bilingual?

A. A bilingual is less likely to develop Alzheimer’s disease.

B. A bilingual child may do well in mathematics at school.

C. A bilingual will probably make more money.

D. A bilingual child owns relatively good language ability.

3.Compared with children, adult language learners ___________.

A. are slower at learning a second language.

B. are more skilled at building vocabulary.

C. are more likely to acquire a native accent.

D. are slower at making logic connections.

4.What can be learned from the passage?

A. A bilingual child will speak both the languages badly later in his life.

B. Learning a second language certainly contributes to your body fitness.

C. Connections within adults’ brain will permanently stop developing.

D. With each language learned, the learning process will become easier.

高三英语阅读理解中等难度题查看答案及解析

It is estimated that 5G devices will be 　　　　　　　　 for commercial applications in China in 2020 with the issue of 5G licenses.

A.unique B.flexible C.mature D.delicate

高三英语单项填空中等难度题查看答案及解析

It is estimated that 12.79 million new urban jobs have been created this year, which almost doubles _____ it was last year.

A.how B.which C.where D.what

高三英语单项填空中等难度题查看答案及解析

It is estimated that living expenses for international students in the university ________ around $9,000 a year, which ________ a heavy burden for some of them.

A.is; is B.are; are C.is; are D.are; is

高三英语单项填空中等难度题查看答案及解析

245. It is estimated that over 15,000 citizens will ____ the celebration, such a grand occasion once every ten years.

高三英语单项填空简单题查看答案及解析

The Mid-autumn Day happening to _________along National Day, it is estimated that it will be 38 years ________ we can experience such a coincidence again.

A．make up, when     B．Come across, that   C．pick up, since      D．come along, before

高三英语单项填空简单题查看答案及解析