-Could you tell me ? -To push for the research and development of the new medicine.A.what was the meeting held B.why was the meeting heldC.when the meeting was held D.what the meeting was he 题目和参考答案——青夏教育精英家教网—

题目内容

—Could you tell me________?

—To push for the research and development of the new medicine.

A.what was the meeting held B.why was the meeting held

C.when the meeting was held D.what the meeting was held for

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A.looks B.tastes C.smells D.sounds

根据短文内容及首字母提示，补全空格内单词，使短文完整、通顺。

Camilla Chomp was a strange little girl. She h1. had any friends because she thought it was much more fun to spend her time a2. eating chocolate.

Camilla left the house to look for some chocolate. She found a small house f3. with glasses. Among all the glasses, a blue glass c4. Camilla’s attention. It was full of chocolate. There was also a card in it, saying “C5. tears into chocolate.”

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阅读下面的短文，根据短文内容回答问题。

The idea that red means stop and green means go has influenced our lives in more ways than just traffic signals (信号). 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 important 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 (波长) 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.

Answer the following question with no more than 8 words.

1.How many colours have been used for traffic signals since the very beginning?

2.What did one train mistake for a white light?

3.Did the colour yellow mean go at first?

4.Why does red mean danger?

5.When were stop signs yellow?

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Many of the original(最初的) Halloween traditions have developed today into funny activities for children. _______ popular one is "Trick or treat". On Halloween night, children dress up _______ costumes and go to their neighbors. When someone answers the door，the children cry out, "Trick or treat!" _______ this means is, "Give us a treat, _______ we'll play a trick on you!" The people at each house then give candy or fruit or sometimes _______ coins.

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3.A.plants B.weather C.season D.rice

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