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Traveling can be expensive. But we can _________ to save money when traveling.

¢Ùget the best room for the best view

¢Úbook a room with a kitchen to cook by ourselves

¢Ûfind the best time to book the cheapest ticket

¢Ütake the bus or subway whenever possible

¢Ýlook for the most expensive local restaurants

A.¢Ù¢Ú¢Û B.¢Ú¢Û¢Ü C.¢Ú¢Ü¢Ý

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When you use crayons, you can color things any way you want. Life wasn¡¯t always so colorful, though. A hundred years ago, all crayons were black. They were used in factories and shipyards. Kids couldn¡¯t use them because they were toxic.

Then a company called Binney & Smith had an idea. They decided to make Crayola crayons for kids and teachers to use in schools. They figured out a formula£¨Åä·½£©that was safe, and they also decided to add colors. The first box of eight Crayola crayons included black, brown, blue, red, purple, orange, yellow, and green. The box cost five cents. The crayons were a huge hit!

Today, many companies make crayons, but Crayola is still the biggest. They take crayons very seriously especially when it comes to colors.

For example, Crayola has a team of seven chemists and chemical engineers who do nothing all day but develop new crayon colors. Their laboratory adds the unique, secret formula to every crayon color. They blend£¨»ìºÏ£©different colors to come up with new shades£¨É«¶È£©. Once the engineers discover a new color they like, they test it on hundreds of kids and parents to make sure it¡¯s really useful. Only then is a crayon ready for the box.

Then comes the hard part¡ª¡ªfiguring out what to name a new color. In 1993, Crayola introduced 16 new colors for its ¡°Big box¡± of 96 crayons. More than two million kids and adults wrote in to advise on the names of the colors. Some winners were tickle me pink (bright pink), timber wolf (gray), purple mountains majesty (purple), tropical rainforest (bright green), granny smith apple (light green), and mauvelous (light pink).Over the years, Crayola has changed the names of some colors.

Around the globe, kids still say that red and blue are their favorite crayon on colors.

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1.The underlined word ¡°toxic¡± in the passage means ¡°___________¡± in Chinese.

A.°º¹óµÄ B.¶à²ÊµÄ C.Óж¾µÄ

2.The second paragragh tells us _______.

A.the first box of Crayola crayons

B.the colors of Crayola crayons

C.a company called Binney & Smith

3.What do the engineers do when they discover a new color they like?

A.They throw away all the other colors.

B.They test it on kids and parents.

C.They draw pictures with it.

4.Which of the following is TRUE according to the passage?

A.Colorful crayons existed a thousand years ago.

B.Crayola is the biggest crayon company.

C.Red and brown are kid¡¯s favorite colors.

5.What is the passage mainly about?

A.Some new color names suggested by kids.

B.The colors developed by engineers.

C.The making and naming of Crayola crayons.

Imagine you are taking a bus home at night. Suddenly your cellphone loses its signal. The television on the bus has no programs. Everything around us black-except for some strange colorful lights dancing in the sky. What is going on?

These are just the kinds of problems a solar storm might cause. Solar storms happen when solar flares (Ò«°ß)break from the sun and travel towards Earth quickly. Actually, since Sept.4, 2017, the sun has burst out two big solar flares, the most powerful ones since at least 2008 according to NASA. They hit Earth on Sept.7.

Normally, Earth is protected by its magnetic field (´Å³¡). But when strong solar storm mix with it, things change. On the one hand, the colourful lights of the aurora (¼«¹â)can be seen from the US and Europe, rather than just from polar (¼«µØµÄ)areas. But on the other hand, the storms can stop the satellite systems that control our computers, cell phones and GPS. They can even cause blackouts (¶Ïµç) for weeks or months.

, but they can put astronauts in danger. Spacewalking astronauts might have only minutes to hide. For this reason, NASA never plans spacewalks during solar storms.

Scientists now have a new tool called EEGGL, which can predict solar storms and hopefully give us warnings when they arrive. As for the recent storm, scientists say it is still too early to know its effect on our technology. They are closely watching for any long-term effects.

1.A solar storm might cause problems EXCEPT that ______.

A.the cell phone loses its signals B.we get hurt in the eyes suddenly

C.we have no TV programs D.everything around turns black

2.Which of the following statements is TRUE ?

A.Solar storms happen when solar flares travel toward the sun quickly.

B.The aurora can only be seen from polar areas during a solar storm.

C.Satellite systems can't work unless they're connected with solar storms.

D.It took two solar flares 3 days to come to Earth in September, 2017.

3.Which of the following sentence can be put in ¡° ¡±.

A.Solar storms are good for people on the ground

B.Solar storms have great effect on people on Earth

C.Solar storms hardly harm people on the ground

D.Solar storms can harm people on Earth seriously

4.The passage is written in a /an ______ tone(ÓïÆø).

A.angry B.serious C.crazy D.happy

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