The idea that red means stop and green means has influenced our lives in more ways than just traffic signals(信號). We have been taught from a young age that the color red means danger and green means it's okay to move forward. But why were those colors chosen for traffic lights in the first place? For something we have to look at every day, why couldn't they have been prettier colors?

Well, it's import to know that before traffic lights for cars, there were traffic signals for trains. At first, railway companies used red to mean stop, white to mean go, and green to mean warn. As you could imagine, trains ran into a few problems with white meaning go. For example, one train mistook a bright star for a white light and something unexpected happened. Because of that, railway companies finally moved green meaning go and used yellow to mean warn. And it's been that way ever since.

Red has always been a color that mean danger, long before cars were even around. This most likely started because it's the color with the longest wavelength(波長) so it can be seen somewhere farther than other colors.

But, believe it or not, yellow was once used to mean stop. Back in the 1900s, some stop signs were yellow because it was too hard to see a red sign in a poorly lit area. Finally, highly reflective materials(高反射材料) were developed and red stop signs were born. Since yellow can be seen well at all times of the day, school zones, some traffic signs, and school buses continue to be printed yellow.

So next time you are impatiently waiting at a traffic light, don't get so mad at them, they've certainly come a long way.

根據(jù)材料內容選擇最佳答案。

1.What were traffic signals for before traffic lights for cars?

A. Trains B. Boats. C. Planes D. Bicycles

2.Which of the following colors meant go at first?

A. Red. B. Yellow. C. White. D. Green.

3.Why does red mean danger?

A. Because it's the brightest color. B. Because it can be seen far away.

C. Because railway companies say so. D. Because it has the shortest wavelength.

4.Why are school buses painted yellow?

A. Because yellow is a prettier color.

B. Because yellow once meat danger.

C. Because yellow can be seen well in daytime.

D. Because yellow means it's OK to go forward.

5.What does the text mainly tell us?

A. How important traffic lights are.

B. Which color has the longest wavelength.

C. What red, yellow and green can be used for.

D. Why traffic lights are red, yellow and green.

1.A 2.C 3.B 4.C 5.D 【解析】本文介紹了交通燈不同顏色信號所代表的意義。最開始時，以紅色作為停止，綠色作為警告，白色作為通行。但是一列火車在晚上把星星誤認為白色，因此發(fā)生了不好的事情，最后將紅色作為停止，綠色作為通行，黃色作為警告。 1.A 細節(jié)理解題。根據(jù)it's import to know that before traffic l...

A young man entered the last interview of a company. The director found the young man’s academic grade were very good.

“Did you get any scholarships(獎學金) in school?” The director asked. “None.” The young man answered.

“Was it your father who paid for your school fees(學費)?” the director asked. “My father passed away when I was one year old, so it was my mother who paid for my school fees.” the young man answered.

“Where did your mother work?” the director asked. “My mother cleaned clothes.” the young man said. The director looked the young man’s hands. He had a pair of smooth and perfect hands.

“Have you ever helped your mother wash the clothes before?” the director asked. “Never,” the young man answered. “I have a request,” the director said. “When you go back home today, go and clean your mother’s hands, and then see me tomorrow morning.”

The young man felt that his chance of getting the job was high. When he went back, he happily asked his mother to let him clean her hands. His mother felt strange; happy but with mixed feelings. She showed her hands to the kid. The young man cleaned his mother’s hands slowly. His tears fell as he did that. It was the first time he had noticed his mother’s hands were so wrinkled. He realized it was this pair of hands that helped him pay the fees.

The next morning, the young man went to the director’s office.“I cleaned my mother’s hands, and I know that without my mother, I would not be the person I am today.” he said.

“This is what I am looking for in my manager.” the director said. “I want a person who can appreciate (感激) ” the help of others to get things done. You get the job!”

1.What did the director ask the young man to do that night?

A. to help his mother wash the clothes B. To wash his mother’s hands

C. To chat with his mother D. To hug his mother

2.The underlined word “wrinkled” in paragraph 6 probably means ______.

A. soft B. rough C. dirty D. smooth

3.What can we learn from the passage about the young man?

A. The young man had good academic grades and got scholarships.

B. His parents worked hard to pay the fees.

C. The young man had a pair of hands that looked just like his mother’s.

D. The young man finally got the job as a manager.

4.Which of the following is wrong about the young man’s mother?

A. Her son never helped her with her work before the interview.

B. Life was difficult but she managed to support her son.

C. She couldn’t help crying when her son washed her hands that night.

D. Her son learned a lot from what she had done for him.

5.What did the director value most from the young man?

A. Working ability. B. Academic grades.

C. Communication skills. D. Appreciation.

1.B 2.B 3.D 4.C 5.D 【解析】 本文講述了一個年輕人的求職故事，在求職中主任給年輕人上了一課，讓他認識到了自己母親對自己無私的付出。 1.句意：那天晚上主任要求年輕人做什么？A.幫媽媽洗衣服B.洗他母親的手C.與他的母親聊天D.擁抱他的母親。原文“When you go back home today, go and clean your...

Mr. Guo is a teacher from Xi’an. He asked his students to hand in their homework through a QR code（二維碼）. “We spent an hour or two in class learning how to generate（使產生）the codes, and in the end everything gets easier.” Said Guo. “When students finish the homework, they keep in on WeChat（微信）. Then, each student makes his own QR code and gives it to me. So I can check their work everywhere using my computer or telephone.”

The QR codes can be sent to Mr. Guo by email, QQ and WeChat. When Guo scans（掃描）his students’ QR codes, their homework appears on his phone. He finds that their homework becomes more creative（創(chuàng)新的）, with many pictures, music and even videos.

Guo’s students like the new way and think it is interesting. “We are living in the information age. Many students like to work with computers, which makes learning more fun.” said Tingting, a student of Guo’s.

“The paper is not easy to keep, but the code is easy to keep and share,” Guo said. “48 It is worth trying to use new technology in education. Education itself is a kind of creation. I don’t want my students to fall behind the times.”

However, some parents are worried. They are afraid that their children will spend too much time on computers and less time communicating with teachers. But in fact, it’s unnecessary. Students still need to look up information in books and write it down when they do their homework. They only use the code when they hand in their work, which doesn’t take them too much time. Also for teachers, it allows them to check the students’ work at any time. And it’s also an easy way to share homework with other students.

1.According to the passage, students can keep their homework on ______.

A. WeChat B. QQ C. email D. blog（博客）

2.Guo’s students think the new way is _______.

A. strange B. boring C. interesting D. Unnecessary

3.What does “it” in Paragraph 4 refer to（指代）：

A. The paper is not easy to keep. B. Keeping and sharing the code easily.

C. Trying to use new technology in education. D. Education itself is a kind of creation.

4.Some parents are worried, because they think their children will _______.

A. talk with teachers face to face B. spend too much time on computers or phones

C. not like the new way of handing in homework D. find the QR codes too difficult to use

5.What’s the main idea of the passage?

A. Teachers needn’t check homework any more. B. Students needn’t hand in homework any more.

C. Using QR codes makes checking homework easier. D. Some parents are worried about their children.

1.A 2.C 3.C 4.B 5.C 【解析】本文主要內容是西安的郭老師，讓學生通過掃二維碼交作業(yè)。這樣老師檢查作業(yè)更容易，可隨時批閱。學生可以和其他同學共享作業(yè)。 1. 2. 3.Itis worth trying to use new technology in education.意思是“在教育中使用新技術是值得嘗試的�！贝司涞慕Y構是it+a...

閱讀下面短文,根據(jù)短文內容,從下面方框中的A-E選項中,選擇適當?shù)倪x項補全短文。

As we know, there are differences between Western culture and Chinese culture.1.. Let’s look at some words about animals and plants. Most expressions in Chinese about the dog, for example, “a homeless dog”, “a mad dog”, “a running dog” and “a dog catching a mouse”, have bad meanings.2.. In English, people use the dog to describe good actions. For example, “you are a lucky dog” means you are a lucky person. And “every dog has its day” means each person has good luck sometimes. To describe a person’s serious illness, they say “sick as a dog”. The word “dog-tired” means very tired.3.. But in Western culture, “cat” is often used to describe a woman who is unkind. There are many other examples of how “cat” is used differently as well.

4.. People think the rose stands for love, peace, courage and friendship. And the rose is the national flower of England, America and many other countries.

5.. We can learn about many differences in cultures by comparing how some words are used.

A. However, Chinese love cats very much.

B. The words about plants and animals are used in good or bad ways in different cultures.

C. We can see differences when we pay attention to the way words are used.

D. The rose is regarded as a symbol of love in both China and some Western countries.

E. But in Western countries, dogs are considered to be honest and good friends of humans

1.C 2.E 3.A 4.D 5.B 【解析】本文通過對比不同國家對于動物和植物的一些詞語使用的差異來展示背后文化的差異。 1.句意：當我們關注單詞的使用方式時，我們可以看到差異。從后句的“Let’s look at some words about animals and plants.”（讓我們來看看有關動物和植物的一些單詞。）得知要拿單詞舉例子了，所以前...

根據(jù)漢語提示完成句子，一空一詞（包括縮寫詞）

1.蘇母公園被認為是眉山最美的公園之一。

The Sumu Park is___________ ___________one of the most beautiful parks in Meishan.

2.如果我們都齊心協(xié)力,我們就會完成這項任務。

If all of us___________ ___________,we’re going to finish the task.

3.我一直忙于準備明天的考試。

I am ___________ _________ for tomorrow’s exam all the time.

4.直到中考結束,山姆他放松下來。

Sam __________relax himself __________the entrance to high school exam ends.

5.“一帶一路”是東西方之間交流合作的象征。

The Belt and Road is the symbol of communication and cooperation ____the East______ the West.

1. regarded as 2. pull together 3. busy preparing 4. didn’t until 5. between and 【解析】 1.“...被認作…”為“sth be regarded as…”，本題是在陳述事實，用一般現(xiàn)在時即可，故填regarded和as 2.“齊心協(xié)力”為“pull together”，這里...

書面表達

現(xiàn)在越來越多的人在網上購物，網購已成為流行趨勢，二網購的利弊也成為人們討論的焦點，請參考下面的信息，并結合就的觀點些一短文，談談你的看法。

1.方便，可以在家買東西，不受時間限制。

2.有很大的商品信息，可以買到當?shù)貨]有的商品。價格較便宜。

3.買貨容易退貨難；實物和圖片有差距。

4.網絡支付不安全。

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Now Internet Shopping is more and more popular in the world. It’s a new way of shopping. It has lots of advantages. The most important is convenient. You can shop whenever you like because the onli...

---Kate, are you only child in your family?

---Yes, but new baby is on the way.

A. a; the B. an; the C. the; a D. the; the

C 【解析】 試題句意：——凱特，你是你家唯一的孩子嗎？——是的，但是一個嬰兒要出生了。the only唯一的；修飾單數(shù)名詞baby，故用不定冠詞a，故選C。

When I am in a western restaurant I always use__hand to hold the knife and___hand to hold the fork.

A. one；the other B. the other；one C. another；one D. the other；another

A 【解析】句意：當我在西餐館時，我通常用一只手拿刀，另一只手拿叉。another泛指（三個或三個以上中的）另一個；the other 接單數(shù)時，表示兩個中的另一個；根據(jù)我們只有兩只手，one--- the other--- 一個---另一個；故選A

—Tom，what do you think of the school？(易錯題)

—Oh，no other school is ________ in the city.It's ________ one.

A. better；a better B. the best；the best

C. better；the best D. the best；a better

C 【解析】 試題句意：湯姆，你認為這個學校怎么樣？哦，在這個城市沒有其他的學校更好了，它是最好的一個。根據(jù)句意可知第一個句子是用比較級表示最高級，第二個句子用最高級。故選C。

There are floors in the building and Mr. Wang lives on the floor.

A. twelve; twelve B. twelfth; twelfth

C. twelfth; twelve D. twelve; twelfth

D 【解析】試題句意：這個高樓有十二層，王先生居住在第十二層。表示有十二層，因此用基數(shù)詞；表法第十二層，用其序數(shù)詞的形式。故選 D