请认真阅读下面短文，并根据短文内容回答问题。
Black Friday
Thanksgiving is always on a Thursday. The day after it has been known as Black Friday. It is the start of the holiday shopping season, and it has been the busiest shopping day of the year in the US since 2005.
Most stores offer big sales on Black Friday. They open their doors quite early in the morning. They try to attract shoppers with big discounts (打折). Some items (商品)like TVs and cloths are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.
Black Friday is a great time to go shopping. However, there are problem. The biggest one is that there are not enough low-priced items. Each store may only have a few. These items are in great need, so people stand in long lines to get them. They may wait three to four hours before a store opens. They may be hoping to get a low price on a TV or computer, but not everybody can get one. Some people leave, disappointed.
The situation makes people worried. Some Black Friday events have been crazy. There have been fights over toys among shoppers. Some workers have even been hurt by large crowds. But most Black Friday events are safe and fun. Still, if you plan to go, you will expect large crowds and a bit of pushing.
So where does the name “Black Friday” come from? It was first used in Philadelphia in the 1950s. The police called this day Black Friday because of the heavy traffic it caused. In the 1960s, stores tried to rename the day “Big Friday”. It did not stick. The name “Black Friday” continued to spread across the country. It seems that it is here to stay.
Now people all over the country take part in Black Friday events. It is even spreading to other parts of the world. Stores have held Black Friday events in the UK, Australia, and Brazil since 2012. In Mexico, stores offer a weekend of discounts every year. They call it “El Buen Fin”, which means “the good weekend” in Spanish. I guess people everywhere like to buy things on sale.
Is Black Friday the start of the holiday shopping season?
_________________________________________________________________________What is the biggest problem with Black Friday?
_________________________________________________________________________How long may people have to wait before a store opens?
_________________________________________________________________________Where was the name “Black Friday” first used in the 1950s?
_________________________________________________________________________Why do people like going shopping on Black Friday? __________________________________________________________________________
阅读下面的图表，做1-3小题。
We can probably find the advertisement.
A. in a news report
B. on a website
C. in a TV programSara Myers is .
A. the mother of a child
B. the owner of a pet store
C. the name of a writerWhich of the following is NOT true ?
A. The book is written mainly for children
B. From the book , we can know what dogs eat.
C. The book came out in December, 2013 .
Do you know something about tree rings? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago?
A tree will grow well in a climate with lots of sunshine and rainfall. And little sunshine or rainfall will limit the growth of trees by studying the tree rings. For example, to find out the weather of ten years ago, count the rings of a tree from the outside to the inside. If the tenth ring is far from the eleventh ring, then we’re sure that it was sunny and rainy most of that year. If it is near to the eleventh ring, then the climate that year was bad.
Tree rings are important not only for studying the history of weather but also for studying the history of man. Many centuries ago, there lived a lot of people at a place in New Mexico. But now you can find only sand there－no trees and no people. What happened?
A scientist studied the rings of dead trees there. He found that the people had to leave because they had cut down all the trees to make fires and buildings. As all the trees had gone, the people there had to move.
Tree rings can tell ______ according to the passage.
A. whether a tree was strong or not.
B. whether the climate was good or not
C. how tall trees used to be.If you want to find out the weather of twenty years ago, you should study ________.
A. the twentieth ring
B. the tenth ring
C. the twenty-second ringWhat does the underline word “limit” mean?
A. 证实 B. 限制 C.促进Which of the following is NOT TRUE?
A. Trees can’t grow well in a climate with little sunshine and rainfall.
B. Tree rings grow far from each other in a bad climate.
C. The people left the place in New Mexico because the land became sand.The passage mainly tells us ________ .
A. how climate affects the growing of trees
B. the importance of the trees
C Tree rings can help us study the history of weather and man.
At most school, “going green” means less rubbish or recycling. But at New York’s Riverdale Country School, it means being advised to run and even jump in the hallways. And the students really enjoy doing that.
Why? It because the hallways were built with special kinetic(动能的)tiles. When students run or jump on the floor tiles, electricity will be generated(产生). The electricity can be used to power classroom lights, science projects and charge electronic products. 14-year-old Zach Halem tried to make the officials buy them. There are eight tiles near the school’s student center.
Besides providing fun green energy, it’s also a good way to teach the students to be creative. They will be inspired to be scientists, inventors and engineers in the future to find clean energy for all humans.
The tiles are mostly made from rubber and other recycled things. They were invented by an English man Laurence Kembell-Cook. While new to the US, They have been put in many places in Europe- from a London Underground Station during the 2012 Olympics to a marathon (马拉松)track in Paris. When Pavegen started getting popular in London schools, Laurence began to realize that his invention not only saved energy ,but was also fun!Why do the students of New York’s Riverdale Country School enjoy running in the hallways?
Who invented the special floor tiles?
What are the special floor tiles made of?
How can the kids at New York’s Riverdale Country School save energy from the floor tiles ?
What do you think of the invention?
The book is suitable for_____
A. Tom, 5 years old
B. Nick, 10 years old
C Sue, 7 years old______ customers like the book very much.
A. 32 B. 2 C. 8Which of the following is NOT true?
A. If we want to get the book, we should pay for＄12 .
B. The book was written in English and French..
C.There are more than 60 simple recipes show us how to make nice food.
Do you know why different animals or pests (昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves.
Some birds like eating locusts (蝗虫), but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters (猎人). This is because they have the colors much like the trees.
Have you ever noticed an even stranger act? A kind of fish in the sea can send out a kind of very black liquid (液体)when it faces danger. While the liquid spreads over (散开), its enemies (敌人)cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.From the passage we learn that locusts________.
A. are small animals
B. are easily found by birds
C. change their colors to protect themselvesHow can pests with different colors from plants keep out of danger?
A. They run away quickly.
B. They have the colors much like their enemies.
C. They hide themselves by day and appear at night. What does the underline phrase “crops” mean?
A. 灌木丛 B. 庄稼 C.水草Which of the following is NOT TRUE?
A. Bears and lions can keep safe because their colors are like the trees
B. Some pests can’t change their colors with the crops.
C. The kind of fish can live up to now because its black liquid can kill its enemies.Which is the best title for this passage?
A. The Change of Colors for Animals and Pests
B. The Main Use of Colors for Animals and Pests
C. Colors of Different Animals and Pests