Somewhere between 40,000 and 110,000 tons of plastic waste produced by Americans ends up in the ocean, according to a study published in the journal Science.
It's difficult to point out where all that waste comes from, and researchers think that much or most of it probably comes from the nation's seriously-populated coasts. But there's also evidence that the nation's inland waterways serve as a passage for plastic to travel thousands of miles into the oceans.
While researchers have documented plastic and human trash floating in the world's oceans, there has been relatively little attention paid to plastics in rivers, streams and lakes. "To my knowledge, no one has studied particular routes, with the exception of places like L.A, and Baltimore Harbor where there are measures in place to prevent trash in rivers from entering the ocean." said Kara Lavender Law, an oceanographer.
The few studies that exist, however, suggest that it may be a huge problem. A 2011 study of two southern California urban rivers---including Santa Ana River---found that every square meter of water contained from 125 to 819 pieces larger than 4.75 millimeters. Another survey of the Meuse River, which flows 575 miles through France, Belgium and the Netherlands to the North Sea, found that it contained 70,000 pieces of plastics per square meter of water, about 500 of which were roughly an inch or bigger in size.
If there's anything positive in this, it's you that can do something, at least on a personal level, to reduce the amount of plastic that goes into the oceans. "Put trash where it goes." said Jenna Jambeck, an associate professor of environmental engineering at the University of Georgia. "Use reusable items---bags, cups and bottles---to reduce waste."
Finally, Jambeck urges people to pick up litter along waterways, and record it with a phone app called the Marine Debris Tracker. The data you provide can help scientists to get a better handle on the trash problem.
1.According to the text, the least polluted place might be __________.
A.Santa Ana River B.Meuse River
C.Baltimore Harbor D.The North Sea
2.How does the author prove plastic waste in rivers is a huge problem?
A.By referring to experts' views. B.By listing statistics.
C.By making comparisons. D.By following time order.
3.What does Jenna Jambeck advise us to do?
A.Make use of plastic items. B.Reduce the size of waste we throw away.
C.Stay positive about the oceans' future. D.Start from small things to deal with waste.
Brook wanted a dollhouse and some sugar cookies. So the 6-year-old asked Alexa to get them. Alex, a vice-activated home assistant powered "by artificial intelligence"(Al), made Brooke's wishes come true. A few days later, much to her parents' surprise, four pounds of cookies and a $170 dollhouse showed up. And that's not the end of the story. When a news anchor told Book's story on TV, Alexa devices in many listeners' homes woke up and tried to order dollhouses!
Alexa isn't the only Al willing to order. Apple HomePod has Siri, Google Home has its Assistant, and the upcoming Galaxy Home device will have Bixby. People who own these devices use them mainly for listening to music, checking the weather and setting timers. But many experts predict a boom in voice shopping in the near future. Is that a good thing?
Convenience is the main benefit of voice shopping. You can shout out an order as soon as you think of it, even if you're cooking, cleaning, or driving. In addition, people with disabilities who are unable to use a keyboard or mouse can shop without assistance.
But voice shopping has its downsides. Unwanted dollhouses aren't the biggest problem. It's usually very easy to cancel an order or return items. The thing that creeps some people out is that these assistants are always listening. They have to be able to respond when you want them. So they listen for "Alexa" or "OK Google" or another command. When they hear it, they start recording the conversation. Some have worried about what happens to these recordings. Should companies be allowed to use them to learn about people's shopping habits? Should police access them to solve a crime? And what if someone hacks the device? The CIA found a way to hack smart TVs to turn them into spies that listen all the time. Others could do the same with any smart device.
1.The writer mentions Brook and Alex in the first paragraph to __________.
A.share an interesting experience B.show Brook's eagerness for cookies
C.introduce the topic of voice shopping D.show the functions of a new smart device
2.What does the underlined phrase "creeps... out" in the last paragraph most probably mean?
A.Terrifies. B.Affects.
C.Impresses. D.Excites.
3.According to the passage, what's the major disadvantage of voice shopping?
A.The return policy is complicated.
B.There are safety and privacy concerns.
C.Quality of the goods can't be guaranteed.
D.The device is not smart and reliable enough to process orders.
假如你是李华，你的外教Peter对中国饮食文化非常感兴趣，他想请你推荐一款中国传统餐饮，请给他写一封信，内容包括：
1.餐饮名称；
2.简要描述；
3.推荐理由。
注意：1.字数100左右
2.可以适当增加细节，以使行文连贯。
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假定英语课,老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有 10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（^),并在其下面写出该加的词.
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
During the recent harvest festival, my parents and I visited the Pear Village , where was a great destination for photographers. The plot was filled with green pear trees and many kinds of flowers. The three of them were very excited. On arriving here，we were warmly welcome by the local people. Then, we picked pears, had a picnic and shared photos took in and around the orchards (果园）. After that，we talked with the working farmers happily. They were simply and kind. They said the harvests benefited all the residents, so they recently hosted at the festival. They were looking forward to welcoming more visitor to their village. The time passes quickly. We were lost in enjoying ourselves before we realized we had to say goodbye to the villagers. It was really unforgettable visit.
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式•
I have made all my final preparations for my first solo concert tour in China. It will be an incredible honor spreading my love for Hawaiian music and culture to new audiences in Shanghai. I will be performing solo concerts at symphony halls in 1. city.
I have an 2. (extreme) interesting family connection to Shanghai. My grandfather 3.(raise) there because his great grandfather moved to China in the mid-19th century 4. (establish) the first hospital and university of Western medicine in China. It was called Saint Luke’s. The campus 5. (be) still there in Shanghai and has been preserved from the time it was built in the 1880s. My grandfather moved back 6. the U. S. after high school and made his way to Harvard. He and his brother moved to Hawaii and both were 7. (doctor) on Oahu Maui and the Big Island. This tour will be very 8. (mean) for my family.
I will visit the university campus while in Shanghai. I feel like a family "history detective” 9. (explore) my family roots. The concerts will be a great way for me to share my “hello” with the people of China and introduce Hawaiian music to many 10. have not heard it. I will be doing TV and radio interviews and performances along the way. Let the adventure begin!
I work as a waiter at a restaurant. Last night an elderly and seemingly_______couple came into the restaurant and my co-worker seated them. We usually _______ our own tables. At one point the elderly couple signaled to me that they were ready to _______ . I was super busy so I found myself a bit _______ ，but out of politeness I went to them and_______ their order.
The _______began ordering and started stammering(口吃)to an extent I'd never heard before. It was very _______ that he had a speech disorder. I could _______ the wife had told her husband a great range of things that she wanted, as a way for him to _______ ordering. It took a while for him to order, and in the meantime, she looked so proud and content ________ her husband's severe stammering.
Honestly the whole thing just brought me to ________. It was touching and just made me realize that a huge part of ________ is acceptance, tolerance and support. She could have made the order and made things a lot ________ for her husband and ________ the stares from other tables，but she didn't. ________ she supported him and was proud to see him complete the order. I ________ took their gesture of wanting to order as being rude, but I think they ________ it because he really wanted to get the order right.
This whole thing also reminded me that life is ________ for all of us. I assumed this wealthy couple had everything going for them, but it just ________ me that all of us have our problems. Anyway, as long as we hold a positive attitude towards life, things will ________well.
1.A.anxious B.troublesome C.wealthy D.talkative
2.A.take care of B.take part in C.take possession of D.take interest
3.A.eat B.order C.pay D.leave
4.A.helpful B.lucky C.awkward D.unwilling
5.A.refused B.took C.delivered D.received
6.A.waiter B.manager C.wife D.husband
7.A.common B.ridiculous C.apparent D.annoying
8.A.tell B.agree C.prove D.accept
9.A.allow B.suggest C.practice D.enjoy
10.A.because of B.in spite of C.in addition to D.as well as
11.A.anger B.laughter C.confusion D.tears
12.A.life B.career C.love D.kindness
13.A.cheaper B.earlier C.easier D.slower
14.A.avoided B.ignored C.returned D.respected
15.A.Luckily B.Instead C.Therefore D.Otherwise
16.A.initially B.deliberately C.eventually D.frequently
17.A.permitted B.regretted C.signaled D.admitted
18.A.worthwhile B.meaningless C.rewarding D.challenging
19.A.reminded B.inspired C.disappointed D.promised
20.A.Act out B.work out C.break out D.pull out
