Look at your classmates around you. You all wear the same uniform and similar sneakers. Do you want to stand out among them? A fashionable and useful backpack can be a great idea!
Backpacks are lightweight and easy to carry.
They are great tools for students. They help you to stay organized. You can keep school things, books and personal items like cell phones and keys neatly (整洁地). With a unique backpack, you can also stand out among your classmates.
Tourists also love backpacks. With convenient backpacks, backpackers can move freely from one place to another. Meanwhile, they can also free their hands to do other things like taking photos.
But in the very beginning backpacks were not what we see today.
It is thought that US hiker Dick Kelty invented the first modern backpack in 1951. He used nylon (尼龙) and aluminum tubing (铝制管型材料) to make backpacks lightweight. Then he added shoulder straps (带子) and waist straps to transfer(转移) much of the weight to the hips (臀部).
Today, backpacks come in different styles.
Rolling (滚动的) backpacks have wheels on the bottom. Users can pull them along the ground if they are too heavy to carry on their shoulders.
And with more people bringing laptops to school and work, backpacks also offer space for lightweight electronics.
【小题1】 Backpacks are useful for tourists because_____.

Look at the light and beautiful snowflakes（雪花） falling．Do you want to hold them in your hands? They are always lost when they meet your hands．

Well, this isn’t just a problem for you．It was a problem for Wilson Bentley, too．

In the 1870s, Wilson Bentley was just a teenager．His family lived in a small town in northeast America．Winters there were long and hard．Bentley’s mother was once a schoolteacher．She taught him at home．Bentley didn’t go to school until he was 14．He was a quiet boy, and loved reading his mother’s books．

But it was his mother’s microscope（显微镜） that interested him．When the other boys were playing with balls, little Bentley was studying the things like drops of water, flowers and snowflakes．Bentley loved watching snowflakes．For the next two years, young Bentley spent many winter days in a cold room watching these ice crystals（晶体） through the microscope．

The boy thought they were so beautiful that he started to draw pictures of them．But there were so many snowflakes that he couldn’t draw them all．

How could he keep their beauty forever? Bentley thought of buying a camera．

The boy and his mother asked his father to buy one．But his father didn’t agree．He thought the whole thing was a bad idea．He thought the only thing a farmer should do was farming．

But finally Bentley did get a camera．For more than a year he tried to take pictures of snowflakes．On January 15, 1885, during a snowstorm, Bentley took the first ever photo of an ice crystal with his camera．“It was the greatest moment of my life,” Bentley said later．

For 13 years, Bentley worked quietly and took thousands of photos of ice crystals．Later he became known as “Snowflake” Bentley．

1．The best title for this passage is “______”．

   A．Snowflake Photos                              B．“Snowflake” Bentley

   C．Long and Hard Winters                    D．Teenage Photographer

2．What kind of person do you think Wilson Bentley was?

   A．He was outgoing                                B．He was too serious

   C．He was interested in learning                D．He was very warm-hearted

3．The “ice crystals” in the fourth paragraph refers to “______”．

   A．water drops      B．rain drops       C．flowers                D．snowflakes

The iPhone is a line of smartphones designed and marketed by Apple Inc. It runs Apple's iOS mobile operating system, known as the "iPhone OS" until mid-2010, shortly after the release of the iPad. The first generation iPhone was released on June 29, 2007, the most recent iPhone, the seventh-generation iPhone 5S, on September 20, 2013. The user interface is built around the device's multi-touch screen, including a virtual keyboard. The iPhone has Wi-Fi and cellular connectivity (2G, 3G, 4G, and LTE).

An iPhone can shoot video (though this was not a standard feature until the iPhone 3GS), take photos, play music, send and receive emails, look through the web, send texts, and receive visual voicemail. Other functions—games, reference, GPS navigation, social networking, etc.— can be enabled by downloading apps; as of 2012[update], the App Store offered more than 775,000 apps by Apple and third parties.

There are six generations of iPhone models, each accompanied by one of the six major releases of iOS. The original 1st generation iPhone was a GSM phone, and established design precedents, such as a button placement that has persisted through all models and a screen size maintained until the launch of the iPhone 5 in 2012. The iPhone 3G added 3G cellular network capabilities and A-GPS location. The iPhone 3GS added a faster processor and a higher-resolution camera that could record video at 480p. The iPhone 4 featured a higher-resolution 960 × 640 "retina display", a VGA front-facing camera for video calling and other apps, and a 5-megapixel rear-facing camera with 720p video capture. The iPhone 4S upgrades to an 8-megapixel camera with 1080p video recording, a dual-core processor, and a natural language voice control system called Siri. IPhone 5 features the new A6 processor, increases the size of the Retina display to 4 inches, and replaces the 30-pin connector with an all-digital Lightning connector.

The resounding sales of the iPhone have been credited with reshaping the smart phone industry and helping make Apple one of the world's most valuable publicly trading companies in 2011–12. However, there has been criticism of the company's outsourcing and move of jobs from the US to China. Apple and its manufacturing contractor Foxconn have received criticism due to poor working conditions at the assembly plant in China.

1.An iphone is from __________.

A. the USA??? ???????????????????????????? B. South Korean

C. the UK?? ?????????????????????????????? D. Australia

2.What is the newest kind of iphone at present?

A. iphone 4??????? ?? B. iphone 4S ????????? C. iphone 5??? ??? D. iphone 5S

3.How many generations of iphone models are there now?

A. Five?? ?????????? B. Six???????????????? C. Seven?? ?????? D. Eight

4.What are the features of iphone 5?

A. The new A6 processor??? ??????????

B. increases the size of the Retina display to 4 inches

C. replaces the 30-pin connector with an all-digital Lightning connector?? ????????? ?????

D. A, B and C

The iPhone is a line of smartphones designed and marketed by Apple Inc. It runs Apple's iOS mobile operating system, known as the "iPhone OS" until mid-2010, shortly after the release of the iPad. The first generation iPhone was released on June 29, 2007, the most recent iPhone, the seventh-generation iPhone 5S, on September 20, 2013. The user interface is built around the device's multi-touch screen, including a virtual keyboard. The iPhone has Wi-Fi and cellular connectivity (2G, 3G, 4G, and LTE).

An iPhone can shoot video (though this was not a standard feature until the iPhone 3GS), take photos, play music, send and receive emails, look through the web, send texts, and receive visual voicemail. Other functions—games, reference, GPS navigation, social networking, etc.— can be enabled by downloading apps; as of 2012[update], the App Store offered more than 775,000 apps by Apple and third parties.
There are six generations of iPhone models, each accompanied by one of the six major releases of iOS. The original 1st generation iPhone was a GSM phone, and established design precedents, such as a button placement that has persisted through all models and a screen size maintained until the launch of the iPhone 5 in 2012. The iPhone 3G added 3G cellular network capabilities and A-GPS location. The iPhone 3GS added a faster processor and a higher-resolution camera that could record video at 480p. The iPhone 4 featured a higher-resolution 960 × 640 "retina display", a VGA front-facing camera for video calling and other apps, and a 5-megapixel rear-facing camera with 720p video capture. The iPhone 4S upgrades to an 8-megapixel camera with 1080p video recording, a dual-core processor, and a natural language voice control system called Siri. IPhone 5 features the new A6 processor, increases the size of the Retina display to 4 inches, and replaces the 30-pin connector with an all-digital Lightning connector.
The resounding sales of the iPhone have been credited with reshaping the smart phone industry and helping make Apple one of the world's most valuable publicly trading companies in 2011–12. However, there has been criticism of the company's outsourcing and move of jobs from the US to China. Apple and its manufacturing contractor Foxconn have received criticism due to poor working conditions at the assembly plant in China.
【小题1】An iphone is from __________.