On a hot summer day, ice-cold watermelons serve up a delicious treat. Sure, the rosy flesh (果肉) quenches your thirst (解渴). But now there are more reasons than ever for people to reach for a slice of watermelon.
Meet Dr Alison Edwards. She is a scientist at the Agricultural Research Service. Scientists are people who come up with new ideas called theories (理论). They usually do scientific research to test their new theories. That’s how they find out if a new idea is a good one, or if the new idea will bring an even better idea.
At her lab, Dr Edwards recently learned more about the secrets of why watermelons are good for you!
Dr Edwards has known for a long time that watermelons have vitamin C. But recently she learned that watermelons also have lycopene (番茄红素). It is something that gives tomatoes and watermelons their rosy red colour.
What’s so special about the lycopene in watermelons?
Dr Edwards says that watermelons and tomatoes both have lots of lycopene. It seems that your body can use the lycopene from watermelons more easily than the lycopene from raw (生的) tomatoes. In fact, the lycopene from tomatoes is more easily absorbed (吸收) inside your body once they have been cooked.The watermelon is a kind of ________.
A.drink | B.fruit | C.medicine | D.vitamin |
How does a scientist usually test a theory?
A.By practising it in daily life. |
B.By doing scientific research. |
C.By discussing it with other scientists. |
D.By looking into many scientific reports. |
Lycopene is something that gives tomatoes and watermelons their ________ colour.
A.red | B.green | C.black | D.yellow |
To make full use of tomatoes, we’d better________.
A.eat them raw | B.not peel the |
C.cook them first | D.make them into juice |
Which of the following is TRUE according to the passage?
A.Our bodies cannot absorb lycopene. |
B.Watermelons are good for us in hot summer. |
C.Tomatoes have more lycopene than watermelons do. |
D.Lycopene in watermelons is hard for our bodies to absorb. |
If you live far from school, you may have to use lunch boxes to take lunch to school. Do you want to know what the early lunch boxes looked like?(1)From the 19h century, people used baskets to take meals.A nice wooden box would be used by the rich people.(2)The tins were large enough for a piece of meat, some bread and some cheese, Walt Disney made the
First "character" lunch box in 1935by putting Mickey Mouse on the box.(3)In 1950,TV cowboy, Hopalong Cassidy, agreed to put his picture on the outside of the blue and red lunch boxes. Over the next 30years, different popular characters controlled the market, such as Aladdin ,Miss America, and the Flying Nun. The Florida government said that the metal boxes could be used as weapons(武器)and they were dangerous for children.(4)
In 1986,people began to use lunch boxes which were made of plastic.(5)Now we can see many plastic lunch boxes with beautiful pictures on them.
根据短文内容,从下列选项中选出能填入空白处的最佳选项,选项中有两项为多余选项.
A. |
By the 1860s,people started making tins to take meals. |
B. |
The plastic lunch boxes weren't used by people. |
C. |
Let's see the history of lunch boxes. |
D. |
Children liked this kind of lunch box very much. |
E. |
Let's see their shapes and sizes. |
F. |
The plastic lunch boxes have been using since then. |
G. |
The last metal lunch box was made in 1985. |
(A) 你知道吃早饭有多重要吗? A study of 2,000 teenagers in the US showed that eating breakfast daily is helpful to young people.
According to the study, teenagers who eat breakfast weigh around 5 pounds less than teenagers who do not. Although they take in more(B) caloriesin the morning, they are more active during the day because they have more energy. This means they bum more calories than non﹣breakfast eaters. The breakfast does not even have to be very healthy, as eating anything is better than nothing.
The study also showed that eating breakfast keeps teenagers feeling full for longer, so they will not eat too many snacks later in the day. This is good news as most popular snacks, like sweets and potato chips are usually unhealthy and full of calories.
Another big benefit(益处)of eating breakfast is that(C) itmakes teenagers do better at school. This is because it gives them more energy to keep their attention in class.
What's more, a study in the UK showed that adults who eat breakfast daily put on less weight and also perform better at work.
Whatever your age is, take time to have breakfast every day.
阅读短文,根据题目要求完成下列任务.
(1)把(A)处划线句子翻译成英语.
(2)根据上下文,猜测文中(B)处划线单词 calories的中文意思.
(3)找出(C)处划线单词it所指代的内容.
(4)根据首字母,在文章中找出一个与英语释义相匹配的单词.
W : how heavy somebody/something is, which can be measured(测量,度量)in, for example, kilograms or pounds
(5)请从文中找出与 No matter how old you are, it is necessary to spend time eating breakfast daily.意思相近的句子.
While you are at the bookstore, you may be faced with a difficult decision: e﹣books or paper books? Each one has its advantages and disadvantages. Making the best decision depends on a number of factor (因素).
An e﹣reader can carry a whole library wherever you go, which is great for travelers or those who always want a choice of reading material Although e﹣readers are convenient, high levels of screen brightness from an electronic device(电子设备) can cause eye problems. A study in the Information Science Research found that young people preferred e﹣readers, like smart phones or iPads. That's why most teenagers are short﹣sighted.
Many book lovers still prefer paper books and value the feeling of them. Paper books are very well designed, they look and smell good, and they carry with them a more human touch. Avid (热衷的)readers prefer reading on paper. Perhaps this is their choice because paper books give them a sense of ownership. It is reported that reading on paper rather than an electronic screen is better for memory and focus. But paper books are heavy and they are not convenient to carry.
Which is your decision, an e﹣book or a paper book?
阅读短文,回答下列问题.(每小题2分,共10分)
(1)How many kinds of books are mentioned in the passage?
(2)Do young people like e﹣readers better?
(3)According to the study, why are most teenagers short﹣sighted?
(4)Which is better for memory and focus, an e﹣book or a paper book?
(5)What's the main idea of the passage?
Welcome to the art museum
You've just stepped into one of the world's greatest collections of art, including centuries of human creativity from around the world. With thousands of works on show, you may wonder how to start your visit, but we are here to help. On the back of this Visitor Guide, you'll see the "don't miss" list for the Art Museum. It shows some must﹣see works. It is a great choice to start if you are new to the museum.
The following pages include a clear floor plan of the museum and its collections. But because we have five buildings, the overlook below might be helpful. Enjoy your visit and feel free to ask for help and directions at any point during your stay.
阅读短文,从每小题所给的A、B、C三个选项中选出一个最佳选项.(每小题2分,共10分)
(1)The passage is a page from .
A. |
a magazine |
B. |
a newspaper |
C. |
a visitor guide |
(2)The "don' t miss" list for the Art Museum shows .
A. |
some free paintings |
B. |
some must﹣see works |
C. |
some new collections |
(3)There aren't any special artworks in RICE BUTLDING, are there?
A. |
Yes, they are. |
B. |
No, there aren't. |
C. |
Yes, there are. |
(4)Which part of the museum will you go to if you want to see Chinese art?
A. |
THE"BRIDGE" |
B. | |
C. |
RICE BUILDIN |
D. |
. |
E. |
THE MODERN WIN |
F. |
(5)Which of the following is true according to the passage?
A. |
The persons working in the museum are willing to help you. |
B. | |
C. |
RICE BUILDING is the closest to the MODERN WIN |
D. | |
E. |
The collections are all from Asia. |
F. |
Everybody Should Say Thank You to Ray Tomlinson
Why should you thank Ray Tomlinson? You might have never heard of his name before, but do you know that the email you use every day was his "child"?
Ray Tomlinson is known as "the father of email". He was born in New York in 1941. He attended college at the Rensselaer Polytechnic Institute, where he took part in a program with IBM and in 1963he received a Bachelor of Science in electrical engineering.
In 1971, Ray created the first email system, which allowed people to send messages electronically from the same computer. But he thought that there might also be a way to send messages from different computers, which led to the birth of the email we know now. He chose the@ sign to separate(区别于)local from global(全球的) emails in the mailing address. "I used the '@' sign to show that the user was 'at' some other hosts (电脑主机)rather than being local," said Ray in an interview Person to person network email was born and user@ host became the standard for email addresses, as it remains today.
Ray Tomlinson died at the age of 74. Thank Ray Tomlinson for inventing the email and making the @ sign well﹣known. Though he may not be as famous as Mark Zuckerberg or Bill Gates, Ray Tomlinson surely has his place among the geniuses(天才) that gave us the convenience in our life.
根据文章内容,判断句子正(T)、误GF).(每小题1分,共5分)
(1)Ray Tomlinson is German and known as "the father of email".
(2)We still see user@ host as the standard for email addresses now.
(3)Ray Tomlinson created the first email system before he received a Bachelor of Science in electrical engineering.
(4)Ray Tomlinson may not be as famous as Bill Gates, but he surely has his place among the geniuses.
(5)We should say THANK YOU to Ray Tomlinson because he makes our life more convenient.