| A．coincidence | B．consequence | C．contradict | D．confidence |
| A．laid off | B．switched off | C．paid off | D．gave off |
| A．acquire | B．adopt | C．adapt | D．attach |
4 . A population of the world's most aggressive mosquito species was almost completely wiped out by an experiment on two islands in the southern Chinese province of Guangdong, according to a study published.
The experiment successfully reduced the female Asian Tiger Mosquito population — the main source of bites and disease spread — by up to 94%, reducing the number of reported human bites by 97%.
One of the Chinese study's researchers, Xi Zhiyong, a professor at Michigan State University, has been a longtime pioneer in this field of study. Running a mosquito factory in southern China, he previously attempted to use sterilized male mosquitoes to mate with unaltered females which developed normally. In the new study, published by the International Journal of Science, Xi and his colleagues attempted to cut mosquito numbers even further by limiting both males and females' ability to reproduce. The results were so successful that they nearly killed the entire female mosquito population on the two islands.
It isn't the first attempt by researchers to reduce mosquito populations across the world. In 2018, scientists from the Imperial College of London used gene-editing tools to make female mosquitoes sterile, while males developed normally and continued spreading the genetic mutation (突变).Experts said the Asian Tiger Mosquitoes are particularly hard to kill using traditional population control methods, such as pesticides (杀虫剂) and removing stagnant (不流动的) water where the insects lay their eggs.
Mosquitoes create grave threats to human health beyond just bites. The World Health Organization (WHO) has described the insects as "one of the deadliest animals in the world," due to their ability to rapidly spread deadly diseases such as dengue fever and malaria. There is currently no effective vaccine or treatment for most mosquito-spread diseases, leaving controlling the insects' populations one of the most effective control methods, according to the International Journal of Science. “A new tool like what's being described in this paper is very much needed” said Stephen Dobson, a professor of medical insectology at University of Kentucky.
1. What does the underlined word "unaltered" in paragraph 3 refer to?| A．Unchanged. | B．Undivided. |
| C．Unadopted. | D．Unfinished. |
| A．Mosquitoes cause genetic changes in humans. |
| B．Mosquitoes spread some deadliest diseases. |
| C．Mosquitoes limit people's ability to reproduce. |
| D．Mosquitoes make traditional vaccines ineffective. |
| A．Editing genes in female mosquitoes. |
| B．Sterilizing male mosquitoes before mating. |
| C．Limiting both genders' reproduction ability. |
| D．Using pesticides and removing stagnant water. |
| A．The things described in this paper are not practical. |
| B．A better way of mosquito control is yet to be found. |
| C．Xi Zhiyong' s method has proven to be very effective. |
| D．A new tool is needed in order to improve Xi's research. |
5 . Coolest Bookstores in the World
Where did you buy your last book? Chances are that you bought it on the Internet. But if you did, you missed the remarkable experience of browsing in a real bookstore. These days bookstores offer lots of great books and plenty more.
Eslite Dunnan Store
Time magazine once named Eslite Dunnan Store in Taiwan province, China "Asia's best bookstore". One visit to the store tells you why. The store, spread across five floors, offers a combination of restaurants, music and over 200,000 books. With its comfortable reading spots, visitors sometimes say it's like a library. Others have called it the "7-Eleven of bookstores" because it's open 24 hours a day.
Book Garden
The world's biggest bookstore is Tehran, Iran's Book Garden with 700,000 square feet of space. In addition to restaurants and a theater, the Book Garden features a park on the roof. Visitors can pick up one of 1,000 free books to read while enjoying the fresh air and sunshine from the Book Garden's rooftop park.
Saraiva Bookstore
Rio de Janeiro's Saraiva Bookstore might be the world's most colorful bookstore. The visible upper level is lined with books arranged by their colors. This rainbow effect provides a color welcoming for shoppers as they arrive. A rainbow path also leads young readers into the children's section.
Liberia Acqua Alta
Venice, Italy, is a city surrounded with water. Its books are displayed in all things related to water such as boats, bathtubs to protect them when the shop floods during high tide. It overlooks one of Venice's many canals, and the smell of old books fills the air.
1. Which bookstore provides a special reading place on the roof?| A．Eslite Dunnan Store. | B．Book Garden. |
| C．Saraiva Bookstore. | D．Liberia Acqua Alta. |
| A．It is open twenty-four hours a day. |
| B．Shoppers can paint books with color. |
| C．It greets people with colorful books. |
| D．Shoppers can find a rainbow there . |
| A．Because the store is known for floods. |
| B．Because they match canals in Venice. |
| C．Because the store is surrounded with water. |
| D．Because they can be preserved from water. |
6 . When you make an order on Taobao, you know the money you pay doesn't go directly to the seller. Instead, it goes through Alipay, which keeps your money for a while. Then Alipay gives the money to the seller.
Most online sellers and shoppers like the third party online payment, but banks are not happy.
Whether Alipay or WeChat payment, they are both trying to attract more users and make online shopping easier. Both payments have made the best of QR code technology.
| A．But WeChat payment is not the same |
| B．This is called "third party online payment" |
| C．Among them, Alipay is the biggest in China |
| D．The reason is that these companies fight over money with them |
| E．Also, they promote sales through face recognition payment |
7 . Kangaroos have long been a nuisance to many Australian farmers. Keeping these kinds of animals away from their crops and water supplies has become a continuous fight. A traditional way has been a series of the huge screaming （尖叫）from loudspeakers. Researchers have found that kangaroos often become used to these man-made sounds and take little notice of them.
Australian farmers could be about to get an unusual new weapon（武器）to protect their crops from kangaroos. Researchers in Melbourne have found that kangaroos can be frightened away by the loud sound of their own large feet. It appears to be quite a breakthrough. This is the noise these animals make when they feel danger before running away quickly. Using the animals’ own alarm system could be what angry farmers have been looking for.
Animal rights protectors are happy about this new finding. When people complain that the number of' kangaroos has risen quickly, they say that a large number of kangaroos have been killed or injured on Australian roads by cars and trucks. Also, they don't want several million to be shot dead every year by human beings. Researchers, who are hoping to develop their footstep sound technology, believe it could also be used to lead kangaroos away from busy highways. The protectors are in favor of this solution which can prevent kangaroos from being harmed and also please the farmers.
1. What problem do kangaroos bring to Australian farmers?| A．Breaking into houses. | B．Making noises. |
| C．Frightening farmers. | D．Destroying crops. |
| A．Cutting off water suplies. |
| B．Killing them with guns. |
| C．Using the sound of their own footstep. |
| D．Sending man-made sound through loudspeakers. |
| A．Because it costs less. |
| B．Because they prefer new technology. |
| C．Because it's a prevention — and — protection way. |
| D．Because it can help reduce the traffic accidents. |
8 . Utah Mask Exhibition
The Utah Art Festival is looking for artists to take part in our yearly Mask Exhibition, shown at the Utah Art Festival Gallery from February 7th to February 21st, 2020. Our aim of this Mask Exhibition is not only to bring public attention to the works of local artists, but also raise money that will help us continue to hold an amazing Art Festival next year.
Application（申请）Requirements:
•Creative Masks We'd like the masks to be wearable, and also creatively related to our style.
•Reasonable Price We'd like to offer all kinds of masks at different prices. On the application you will be asked to price your works.
•Typical Samples （样品）This can be a photo of the previous masks you've created, or a drawing of an idea you have for a mask — anything that gives us a general idea of what the final product might look like.
•Brief Introduction It's about the creation background of your works.
Project Timeline:
November 8th — Deadline for submission （递交）of application and sample of your works. November 15th — The artists will be emailed if their works are accepted.
January 28th — Final masks must be offered to the Arts Festival offices with an agreement. February 7th through 21st — Exhibition will be open to the public.
February 25th — Unsold masks will be returned to the owners.
1. Which of the following is the aim of the 2020 Mask Exhibition?| A．To collect masks for the gallery. | B．To know the world-famous works. |
| C．To raise money for next Art Festival. | D．To attract the attention of local artists. |
| A．Set a price for their works. |
| B．Hand in the final products. |
| C．Wear their masks in the exhibition. |
| D．Introduce the artists' background. |
| A．The Exhibition will be open for a month. |
| B．Unsold masks will be dealt with by the office. |
| C．An agreement is needed about the sample masks. |
| D．Artists will know if they are accepted on November 15th. |
It is reported that next year, Singapore will treat sugary drinks in the way that other countries treat cigarettes — no advertisements. The plan aims
增加:在缺词处加一个漏字符号(Λ)，并在其下面写出该加的词。
删除:把多余的用斜线(\)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。
Do you believe love is the most important? In the early twenty century, homeless people were often brought up in orphanages, in that they received little love. At one time, Dr. Skeels took twelve children from an art orphanage or had a young girl look them each day. He also studied another the twelve children who are left in the orphanage all day long. He followed these children until they grew up, and the results were shocked. The children staying all day in the orphanage were either dead or suffering from serious illnesses. However, the twelve children loved by the girl were all healthy and independently. The only differences between these children -- the love, made a great difference to us.
