Scientists in Argentina have created the world’s first cow to own two human genes that will enable it to produce human-like milk, which is matchless up to now. It is a breakthrough in the area of clone.
Genetic engineering was used to introduce the "mothers’ milk" genes into the animal before birth, according to the National Institute of Agribusiness Technology in Buenos Aires.
As an adult, the cloned cow "will produce milk that is similar to humans" in what will prove "a development of great importance for the nutrition of infants", it said in a statement.
"The cloned cow, named Rosita ISA, is the first one born in the world that owns two human genes that contain the proteins present in human milk," the statement said.
In April, scientists in China published details of research showing that they had created GM Holstein dairy cows which produced milk containing proteins found in human breast milk.
But the Argentine team says the Chinese only introduced one human gene, whereas their research involved two genes meaning the milk will more closely resemble that of humans.
Rosita ISA was born on April 6 and was delivered by Caesarean section because she weighed around 100 pounds, roughly twice the normal weight of Jersey cows.
Adrian Mutto, from the National University of San Martin said "Our goal was to raise nutritional value of cows’ milk by adding two human genes, the protein lactoferrin and lysozyme, which can provide newly-born babies with anti-bacterial and anti-viral protection."
Cristina Kirchner, President of Argentina, said that the scientific institute "makes all proud.” She also revealed that she had rejected the "honor" of having the cow named after her. "They came to tell me that the name is Cristina, but what woman would like to have a cow named after her? It appeared to me to be more appropriate to call it Rosita.”
1.What can we know about Rosita ISA according to the passage?
A. It is as heavy as Jersey cows.
B. It is the first cow with a human gene.
C. Its milk has the same proteins as human breast milk.
D. Its milk has larger nutritional value than others’.
2. Lactoferrin and lysozyme in milk ______.
A. are good for babies’ health
B. help provide more milk from cow
C. can increase the production of milk
D. can offer more proteins in cow milk
3.We can infer from the last paragraph that ______.
A. it is hard to name the cow
B. honorable as it is, no women like the cow named after them
C. the president wants the cow named after her
D. Cristina Kirchner objects to creating the cloned cow
4.What would be the best title of the passage?
A. Scientists in Argentina could produce human milk
B. The cloned cow would bring about benefits
C. Scientists create cow that produces "human" milk
D. How was the cloned cow born?
Air conditioning, watermelons, ice cream-we have all kinds of gadgets and food to get us through the summer. But what could be better during the hot months? The following are a few special and well-known water parks around the world. Take a good look, and know what the real water parks look like.
Noah’s Ark
Location: Wisconsin Dells, Wisconsin, US
Noah’s Ark offers many water slides. The most notable ride is the Black Anaconda. At more than 400 meters in length, it is the US’ most thrilling water coaster and sends riders spiraling down at speeds of up to 48 kilometers per hour. Plus, with 18 indoor water parks, Wisconsin Dells offers plenty of splashes for water lovers.
Tropical Islands Resort
Location: Brandenburg, Germany
This resort offers the largest indoor water park in the world-at 65,961 square meters. And its indoor pool can hold 6,000 visitors at a time. As Europe’s largest tropical holiday world, Tropical (热带的) Islands is more than a water park. It’s a fully functional resort, featuring a theme park, an artificial rainforest, a lagoon, a beach, steam baths, saunas and many shops and restaurants. There are also several water slides and other activities that people of all ages can enjoy.
Las Cascada Water Park
Location: Aguadilla, Puerto Rico
Las Cascada is well known for its unbelievable beauty. It is surrounded by tropical mountain forests and situated close to the ocean.
The water ride, E1 Rio Pasivo, carries riders through the whole water park. They can see the mountains and waterfalls around it.
Chimelong Water Park
Location: Guangzhou, China
It is one of the largest water parks in Asia. With its advanced technology, it also has many new aquatic(水上的) facilities in the industry. One of the park’s rides offers a tube conveyor that transports riders up a 19-meter-tall tower. The park has implemented a special water treatment system that ensures safe PH(酸碱度) levels and removes harmful germs.
1.Which of the following water parks sounds the cleanest?
A. Noah’s Ark
B. Tropical Islands Resort.
C. Las Cascada Water Park.
D. Chimelong Water Park.
2.What is special about Tropical Islands Resort?
a. It has natural rainforests.
b. It has advanced equipment.
c. It’s the largest indoor water park in the world.
d. It has other fun facilities other than a water park.
A. ac B. cd C. abcD. abd
3.Where is the article most likely to have been taken from?
A. A science magazine.
B. A research paper.
C. A travel magazine.
D. An advertisement.
Both of my parents worked full-time when I was a little girl, so my grandmother would stay at our house during the day. We would watch game shows in the living room. Our favorite was The Price is Right. We would call out our answers along with the contestants.
When I got older and started going to school, we couldn't watch our game shows regularly. That was okay with me, though, because the one thing I liked better than watching game shows with my grandmother was helping her bake cakes. Watching her in the kitchen was amazing: she never seemed to need the recipes but everything she made tasted delicious.
At first I would just sit in the kitchen and watch, even though I didn’t understand what she was doing, As I got older, she let me help with the easy parts, such as measuring the sugar. The day she let me separate the eggs, I felt like I had found complete pleasure.
At last, my parents decided that I could take care of myself, and my grandmother stopped coming over every day. The love of baking, however, stayed with me. I started baking by myself, and even if the cookies ended up burnt sometimes, more often they turned out pretty well. I tried out new recipes, and whenever I got to a thorny part, I would call my grandmother for advice. Sometimes I would call her just to talk, too. I felt like I could talk to her about anything.
My grandmother passed away ten years ago, but I still think of her every day. Last week, I found a recipe book she made for me. It included her recipes for brownies, cookies, and my favorite, lemon pie. As I looked through the pages, I thought I could hear her voice. She was the one who taught me not just about baking, but about life.
1.What’s the author’s purpose in writing this passage?
A. To show her good baking skills.
B. To remember her grandmother.
C. To talk about her happy family life.
D. To describe her childhood memories.
2.While helping her grandmother bake, the author ______.
A. found it interesting and appealing
B. turned out to be a troublemaker
C. hoped to make a living by baking
D. regretted missing the game shows
3.What does the underlined word "thorny" in Paragraph 4 most probably mean?
A. basic. B. common. C. special.D. difficult.
4.The passage is mainly developed by ______.
A. analyzing causes
B. making comparisons
C. following the time order
D. examining differences
假定你叫李华，暑假要去加拿大。你写信给你的加拿大朋友Susan，告诉她你的行期及航班，嘱咐他到多伦多机场接你。
起点站：北京国际机场
行期：7月23日 10:30AM 航班：NW 1702
第一站：Vancouver，停留一小时
终点站：Toronto Airport
总行程：约18小时
注意：信的开头已给出，内容可以适当增加。词数100左右。
Dear Susan, Jul. 2nd
I have planned to _______________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Best wishes.
Yours,
Li Hua
短文改错
假定英语课上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。
I have the best friend who I can share everything with. His name was Li Gang, and we’re in the same grades. Li Gang is a good student because he is very hardworking. He is good in all subjects, especially math. I’ve learned a lot of from him. Besides that, he’s honesty. I trust him complete and we share secrets all the time. He always remember my birthday and he is fun be with. He tells funny jokes but always makes me laugh. Finally, he is a very good listener. I hope we’ll stay friends forever.
阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式（不多于3个单词）。
Farming and nature are like two flowers on the same tree. When farming 1._______ (go) against nature, all kinds of environmental problems are the result. In ancient times, when people began using the land, farming was not 2._______ it is today. Early farmers moved around the country. They burnt a part of a forest and used this land for one or two years. When they could no 3.________ (long) grow crops on the land, they moved on and repeated this somewhere else. Agriculture in this way destroys nature and results 4.________ floods and droughts (干旱).
Over the past thirty to thirty-five years, farmers 5. ________ (recognize) some old truths, already known to ancient Chinese farmers. Farming should not go against nature. If the soil is too poor, chemicals can help improve 6.________ and grow better crops, but this may damage or destroy land 7._______ (surround) the farms. Instead, farmers should look for other methods. In the early 16th century, brothers Tan and Xiao Zao of Jiangsu Province bought fields along lakes at 8._______ low price nobody wanted because they were too wet. They built dikes (堤坝) around the fields turning the fields9._______ fish ponds and they became fish farmers. They also planted fruit trees on the dikes and kept chickens and ducks. They were very 10._______ (success) farmers.
