增加：在缺词处加一个漏字符号（∧），并在下面写出该加的词。

  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。

Dear Sir/Madam,

    I'm one of your customer, I ordered a set of books on your website two weeks ago, but I didn't received it until yesterday. And much to my disappointment, the books were too poorly packed up that the cover of one book were torn. To make matters worse, it is not a complete set, as I found one book missed.

    I'm sorry to have received such poorly service, and I believe I have every right ask you to deal with this problem. I hope you either return my money back or deliver a new set of books to me. Beside, I'd like to be informed of the process of your deal with my complaint.

    I'm looking forward to your reply.

Li Hua

A Teenage Inventor

    The world could be one step closer to quick and inexpensive Ebola detection thanks to a teenager from Connecticut.

    Olivia Hallisey, a junior at Greenwich High School, was awarded $50,000 in the Google Science Fair for her new method that detects Ebola, a virus that causes bleeding from different parts of the body and usually causes death. Olivia's method is to ask patients to put their saliva (唾液) onto a testing card. The card changes color if the person is catching Ebloa. Present Ebloa tests take up to 12 hours and cost $1,000. Olivia's method, however, can be done just in 30 minutes for about $25. Besides, the sample (样本) doesn't have to be put in a refrigerator thanks to the silk material Olivia uses to produce the testing cards.

    Olivia was inspired to deal with this global problem after watching the news that more than 10,000 people died from Ebola in West Africa. She was particularly worried about the fact that, while the acts of involvement can improve survival rates, present detection methods are costly, time-consuming and require complex tools. Olivia got help from her science research teacher. She drew out directions from past research, and figured out detection systems that have proven to work with other diseases, including Lyme disease and yellow fever.

    "What affects one country affects everyone," Olivia told CNBC. "We have to work together to find answers to the huge challenges which cause harm to the global health." The Connecticut's teen, who hopes to become a doctor one day, was named the Google Science Fair winner in the competition of 20 competitors from across the globe. The fair is open to young people between the ages of 13 and 18 in most countries.

    Olivia hopes her success will inspire other girls interested in science and computers. "I would just encourage girls to try it in the beginning, and remind them that they don't have to feel naturally drawn or feel like they have a special talent for maths or science," she told CNBC, "but just really look at something they are interested in and then think how to improve something or make it more enjoyable or relate it to their interests."

    Public transport is declining in the rich world. To those who have to squeeze onto the number 25 bus in London, or the A train in New York, the change might not be noticeable. But public transport is becoming less busy in those places, and passenger numbers are flat or falling in almost every American city. That is despite healthy growth in urban populations and employment.

    Although transport agencies blame their unpopularity on things like road works and broken signals, it seems more likely that they are being outcompeted. App-based taxi services like Uber and Lyft are more comfortable and convenient than trains or buses. Cycling is nicer than it was, and rental bikes are more widely available. Cars are cheap to buy, thanks to cut-rate loans, and ever cheaper to run. Online shopping, home working and office-sharing mean more people can avoid travelling altogether.

    The competition is only likely to grow. More than one laboratory is developing new transport technologies and applications. Silicon Valley invented Uber and, more recently, apps that let people rent electric scooters(滑板车) and then abandon them on the pavement. China created sharing-bicycles and battery-powered "e-bikes", both of which are spreading.

    Transport agencies should accept the upstarts, and copy them. Cities tend either to ignore app-based services or to try to push them off the streets. That is understandable, given the rules-are-for-losers attitude of firms like Uber. But it is an error.

    It is doubtful that most people make hard distinctions between public and private transport. They just want to get somewhere, and there is a cost in time, money and comfort. An ideal system would let them move across a city for a single payment, transferring from trains to taxis to bicycles as needed. Building a platform to allow that is hard, and requires much sweet-talking of traditional networks as well as technology firms. It is probably the secret to keeping cities moving.

    Many languages are disappearing and languages such as English, Spanish and Chinese are increasingly taking over. Yet Maori promises to have a rosy future given that New Zealanders are showing great enthusiasm for speaking this local language.

    A "Maori renaissance (复兴)" blossomed in the 1970s as language activists championed their cause and Maori fought for greater political power. But until 2013, just 3.7 percent of New Zealanders spoke the language fluently, and many predicted it would soon die out. Now New Zealand's government is erasing prejudice and struggling to increase the percent of population who can speak basic Maori by 2040 to 20. Prime Minister Jacinda Ardem said last month that her newborn daughter would learn both Maori and English. "It's an official language, so why should we dismiss its universal availability and its much more common use?" said Ms. Ardem, adding that she also planned to study the language. Grassroots are also spreading it by word of mouth Answering the phone with the greeting "kiaora" (hello) or ending an email withunga mihi' (thanks) has become a fashion. Maori is gradually becoming part of New Zealand's mainstream popular culture.

    Ajit Kumar Samah, a famous professor in Auckland University, published a book—Coniagious: why Maori catches on, where he introduces readers to the popularity of Maori and expresses his great anxiety for the lack of teachers who have the competence to teach the Maori language.

    People are not on the same wavelength, however. Suggestions on officially replacing English-language place names with traditional Maori ones have been rejected. So when a police car was designed using Maori, it was condemned by some as ridiculous because of the higher Maori rates of arrest and imprisonment.

A Rare Spotless Giraffe

A female giraffe was born at Brights Zoo in Tennessee recently—but unlike her mother she was born without any spots an unusual one.

Standing 14 to 19 feet tall, giraffes are the tallest land animals in the world. When mothers give birth, the young giraffes are already 6 feet tall, and other than in especially rare cases, they're born covered in brown spots. Brights Zoo in Limestone, Tennessee, announced that it welcomed the birth of a reticulated giraffe (网纹长颈鹿) without any spots on July 31st.

"Giraffe experts believe she is the only solid-colored reticulated giraffe living anywhere on the planet," the zoo said. The zoo's director, David Bright, said zoo staff had been reaching out to zoo professionals across the country inquiring about how unusual the giraffe could be. Zoo officials said the only record of a reticulated giraffe being born without spots was in Japan in the 1970s.

Mr. Bright said that the new giraffe might not have survived if she had been born in the wild. "Being solid-colored, she may not be able to hide quite well," said Bright. He also thought it was likely that the giraffe would be a "key target for illegal hunters" because she's so unusual.

Pictures of the young giraffe can be seen on the Brights Zoo Facebook page. In a picture, she, without her spots, stood next to her mother, a normal giraffe, in stark contrast. The zoo is asking the public to help name the newborn. People can choose one of four names available on the zoo's Facebook page. The names and their meanings are: Kipekee, meaning unique; Firyali, which means unusual or surprising; Shakiri, meaning she is most beautiful; Jamella, which means optimistic.

Bright said that the zoo looked at thousands of names and their meanings before settling on the four available. "Those four are the four the family really loves," Bright said. "So if she's named one of those four, we're very happy."

According to the Giraffe Conservation Foundation, there are only about 16, 000reticulated giraffes left in the wild — a more than 50% drop from approximately 36,000giraffes 35 years ago. There are about 117, 000giraffes across nine subspecies(亚种).Many of them are endangered or critically endangered.

The famous Spanish painter Pablo Picasso once said, "I am always doing that which I cannot do, in order that I may learn how to do it." It strikes a chord(引起共鸣) with me because that's exactly what I have been doing these years.

One of my earliest memories of doing before learning is baking scones(烤饼) when I was about 10 years old. I wanted to bake them to surprise my mother when she returned home.

Before that, I'd observed how my mother baked them many times. As I started to try, I didn't know I shouldn't handle the dough(面团) with my hands too much once I'd added the baking powder(发酵粉). However, I knew exactly how to roll out the dough and use a cookie cutter to cut the scones, because my mom had already taught me.

By the time my mom arrived home, the smell of freshly baked scones welcomed her into the kitchen. They were close to perfection—flat, as a result of overhandling the dough, but they tasted OK. My mom sweetly praised me for my attempt, rather than scolding me for the state of the kitchen, which was like a tornado had just blown!

Have my attempts always been successful? I wish! Some of my kitchen disasters were so terrible that even the dogs wanted nothing to do with them. My gardening failures didn't live to see another season.

But my habit of doing before learning is still helpful. Whatever new software I have to learn how to use, I do so by simply starting to use it. I do, learn, and improve. So if you ask me whether I regret that I tend to do first and learn later, I'd say I don't, because what I have discovered from those is the wisdom to know when it's OK to do and then learn, and when it's probably better to learn and then do!