There are purple clothes, purple handbags, purple bicycles, purple furniture, even purple computers! Purple is very popular today. But a long time ago, purple was a very expensive and unusual color. Let’s take a look at the rich history of the color purple.
Some scientists believe that the first plants to appear on Earth over 500 million years ago probably looked purple, not green. Plants today are green because they use green chlorophyll (叶绿素) to produce energy. But these early plants probably used something called retinal, which is a dark purple color.
During the time of the Roman Empire (37 BC-476 AD), it was very difficult to make purple dye (染料). The dye came from sea snail (海螺). But 10,000 dead sea snails got you just one gram of purple dye... as well as a very bad smell! This special purple dye… was called Tyrian purple, and it was the preferred colour of emperors (皇帝).
In 16th-century England, purple was only for the king’s family members. Queen Elizabeth I’s clothes were purple, but common people were not allowed (允许) to wear the color.
In 1856, William Perkin, an 18-year-old science student, noticed something strange while doing an experiment (实验). The chemicals he used to clean his instruments mixed with the chemicals he used in his experiment and produced a bright purple color. This discovery led Perkin to start a company using this chemical mixture to make purple dye. The dye was not expensive. Thanks to Perkin, now anyone can afford to wear purple.
| The1.of the color purple | |
| Introduction | Purple was very expensive and unusual in the2.. Now it is one of the most popular3.. We use it a lot in our life. |
| The first plants on Earth probably looked4.. They5.energy by using retinal, which is dark purple. During the Roman Empire, people6.sea snails to make purple dye. 7.the dye had a bad smell, emperors liked it very much. In 16th century, common people could not8.purple clothes in England because purple was only for the royal family. In 1850, William Perkin found that something strange9.in an experiment. He got a bright purple colour by mixing certain chemicals together. Later he started a company to make purple dye, which was much10.than sea snail dye. Now everyone can afford to wear purple. |
七年级英语填空中等难度题
There are purple clothes, purple handbags, purple bicycles, purple furniture, even purple computers! Purple is very popular today. But a long time ago, purple was a very expensive and unusual color. Let’s take a look at the rich history of the color purple.
Some scientists believe that the first plants to appear on Earth over 500 million years ago probably looked purple, not green. Plants today are green because they use green chlorophyll (叶绿素) to produce energy. But these early plants probably used something called retinal, which is a dark purple color.
During the time of the Roman Empire (37 BC-476 AD), it was very difficult to make purple dye (染料). The dye came from sea snail (海螺). But 10,000 dead sea snails got you just one gram of purple dye... as well as a very bad smell! This special purple dye… was called Tyrian purple, and it was the preferred colour of emperors (皇帝).
In 16th-century England, purple was only for the king’s family members. Queen Elizabeth I’s clothes were purple, but common people were not allowed (允许) to wear the color.
In 1856, William Perkin, an 18-year-old science student, noticed something strange while doing an experiment (实验). The chemicals he used to clean his instruments mixed with the chemicals he used in his experiment and produced a bright purple color. This discovery led Perkin to start a company using this chemical mixture to make purple dye. The dye was not expensive. Thanks to Perkin, now anyone can afford to wear purple.
| The1.of the color purple | |
| Introduction | Purple was very expensive and unusual in the2.. Now it is one of the most popular3.. We use it a lot in our life. |
| The first plants on Earth probably looked4.. They5.energy by using retinal, which is dark purple. During the Roman Empire, people6.sea snails to make purple dye. 7.the dye had a bad smell, emperors liked it very much. In 16th century, common people could not8.purple clothes in England because purple was only for the royal family. In 1850, William Perkin found that something strange9.in an experiment. He got a bright purple colour by mixing certain chemicals together. Later he started a company to make purple dye, which was much10.than sea snail dye. Now everyone can afford to wear purple. |
七年级英语填空中等难度题查看答案及解析
连词成句,注意标点
1.are there bicycles some the square in
.
2.you any kites have got from China
?
3.there is in a book the box
.
4.from is Australia here a girl
.
5.are there lots bicycles China in of .
.
七年级英语单词造句中等难度题查看答案及解析
连词成句,注意标点
1.are there bicycles some the square in
.
2.you any kites have got from China
?
3.there is in a book the box
.
4.from is Australia here a girl
.
5.are there lots bicycles China in of .
.
七年级英语补充句子中等难度题查看答案及解析
| Mason’s Clothes Store | ||
| Clothes | Color | Price |
| socks | white, blue | $5 |
| trousers | black | $12 |
| sweater | purple, brown | $9 |
| T-shirt | red, green, black | $8 |
| hat | black, yellow | $4 |
1.Which is the cheapest(最便宜的) of all?
A.A hat. B.A T-shirt. C.A sweater. D.A pair of socks.
2.How much are three sweaters and a hat?
A.$27. B.$28. C.$31. D.$32.
3.You can buy in Mason’s Clothes Store.
A.black trousers B.a blue sweater
C.a green hat D.red socks
4.You like brown and you only have $10. You can buy .
A.a pair of socks B.a hat C.a T-shirt D.a sweater
5.If you only have sixteen dollars, you can buy .
A.a sweater and a pair of trousers B.two T-shirts and a pair of socks
C.two T-shirts D.a sweater and two hats
七年级英语阅读单选中等难度题查看答案及解析
Mr. Cool’s Clothing Store
| Clothes | Color | Price |
| socks | white, blue, purple | $4 |
| pants | black | $11 |
| Sweater | red, white | $20 |
| T-shirt | Red, green, black | $14 |
| hat | black, red | $6 |
| Shorts | red, green | $16 |
| trousers | black, yellow | $15 |
1.Of all the things in the shop, ______ are the cheapest (最便宜).
A.sweaters B.socks C.hats
2.Gina wants to buy a sweater, two pairs of shorts and a T-shirt. How much are they?
A.$ 45. B.$ 50. C.$ 66.
3.Mary only likes purple, so she can buy ______.
A.T-shirts B.shoes C.socks
4.The store has trousers in ______.
A.all colors B.black and yellow C.black and blue
5.Peter has 10 dollars, so what can he buy?
A.A hat and a pair of socks. B.A T-shirt. C.A sweater.
七年级英语阅读单选中等难度题查看答案及解析
There are ________ floors in the mall and on the _____ floor there are many clothes shops.
A. five; five B. fifth; fifth
C. five; fifth D. fifth; five
七年级英语单项填空中等难度题查看答案及解析
There are ________ floors in the mall and on the _______ floor there are many clothes shops.
A. five; five B. fifth; fifth
C. five; fifth D. fifth; five
七年级英语单项填空简单题查看答案及解析
There are ________ floors in the mall and on the _______ floor there are many clothes shops.
A. five; five B. fifth; fifth
C. five; fifth D. fifth; five
七年级英语单项填空简单题查看答案及解析
Look at the clothes line (晾衣绳) in the twins’ bedroom. There are some clothes on it. You can see a green blouse, a yellow skirt and a pair of trousers. The trousers on the clothes line are black. They are not new but clean. Are they Lily’s clothes? No, they are Lucy’s. Lily’s clothes are on a clothes tree (衣帽架) near the window. Her trousers are brown. Her blouse is white and her skirt is blue. There is a new hat on the clothes tree, but it’s not Lily’s, it’s Lucy’s. Lucy’s jacket s are on her bed. There are no clothes on Lily’s bed.
1.What color are Lucy’s trousers?
A. Green. B. Black. C. Brown. D. White.
2.Where is Lucy’s hat?
A. On the clothes tree. B. On the clothes line.
C. On Lily’s bed. D. On her own bed.
3.Are there any clothes on Lily’s bed?
A. Yes, there is a hat on it.
B. Yes, there is a jacket on it.
C. No, there aren ’ t. .
D. Sorry, I don’t know.
七年级英语阅读理解中等难度题查看答案及解析
| Name | Class | Grade | Clothes | Color |
| Alice | 3 | 7 | Dress | Purple |
| Betty | 2 | 7 | Skirt | Red |
| Dick | 1 | 7 | Shirt | White |
| Jack | 3 | 7 | T-shirt | Black |
根据表格里的内容，选择最佳答案。
1.Whose shirt is white?
A. Dick’s B. Betty’s C. Jack’s
2.What clothes is Jack in?
A. coat B. a T-shirt C. a Shirt
3.What color is Alice’s dress?
A. Red B. Purple C. Black
4.The four students are in ____.
A. the same class
B.the same clothes
C. the same grade
5.Who are classmates?
A. Alice and Betty
B. Dick and Jack
C. Alice and Jack
七年级英语阅读理解中等难度题查看答案及解析