Foralongtime,humanshaveusedtec-优题课

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 ring
What 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. 8
Which 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 themselves
How 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

Two men from different worlds — a BuzzFeed editor(编辑) from New York and a man in southern China known as “Orange Brother” — have been friends after social media(媒体) helped them know each other over a stolen iPhone.
The story of a guy named Matt in New York City who had his iPhone stolen last year has become famous on Chinese social media. Matt said his phone was stolen from a bar in the East Village last February. He bought a new phone and carried on with his life. It wasn't until this January, however, that he was going through his photo stream and noticed tons of photos that weren’t his, including several pictures of an unknown man posing next to an orange tree. More photos of food menus, fireworks and something strange kept appearing in his photo stream in the following days.
Matt later learned that his phone, stolen almost a year ago, had ended up in China and that the new owner was still logged(登陆) into his iCloud account(账户).
After Matt wrote about the cross-seas connection on BuzzFeed, a web user translated it and posted it to Weibo. He started getting tons of attention from people in China about the story. They thought it was romantic like a fairy tale and perfect for the spirit of the Spring Festival.
In typical Chinese netizen(网民)-fashion, they were able to track down the information of “Orange Brother”. He lived in Meizhou, Guangdong province. Web users loved this, and urged Matt to come to China and connect with his “long-lost brother”.
Orange brother made the first move. “Matt, I welcome you to come to Meizhou and try some local food,” he said on Weibo, China’s micro blogging platform. That post was “liked” over 12,000 times. Matt quickly accepted. Matt began learning Chinese, while Brother Orange posted videos of himself learning English. But when they finally met, the smiles and hugs said it all.
In this passage, we cannot know _________.

A．who stole Matt’s iPhone.	B．how Matt knew Orange Brother
C．what Matt’s job is	D．where Orange Brother comes from

Matt learned some information about his stolen iphone when__________.

A．he went through the magazine

B．the new owner logged to his iCloud account

C．Orange Brother connected with him

D．Orange Brother used the stolen iphone to call him

Which of the following is TRUE?

A．Matt himself translated his story into Chinese and posted it to Weibo.

B．Orange Brother urged Chinese netizens to look for the owner of the iPhone.

C．Orange Brother is the new owner of the iPhone that used to belong to Matt.

D．They didn’t meet each other until last February.

The article probably comes from ___________.

A．A music magazine	B．a guide book
C．website news	D．a history textbook