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

To be a good teacher, you need some of the abilities of a good actor. You must be able to__1___ the attention and interest of your audience. You must be a clear speaker with a good voice which is fully under your _2___. And you must be able to act what you are teaching in order to make its meaning clear.
Watch a good teacher, __3___ you will see that he stands the whole time he is teaching, he walks about using his arms, hands and fingers to help him in his explanations and his face to express feelings. When you listen to him, you will hear the loudness and the musical note of his voice __4__changing according to what he is talking about.
The __5__ that a good teacher has some of the talents of a good actor does not mean that he will indeed be able to act well on the stage for there are very important differences between the teacher’s work and the actor’s. The actor has to __6___ the same words which he has learnt by heart every time he plays a certain role. What he has to do is to make all these carefully learnt words and actions seem __7__ on the stage.
The good teacher works in a quite different way. His audience take an active part in his play. They ask questions when they do not understand something. So the teacher has to suit his act to the __8___ of his audience which is his class. He cannot learn his part by heart, but must ___9___ it as he goes along.
I have known many teachers who were fine actors in class but were __10___ to take part in stage-play because their brains (大脑) could not keep strictly to what another had written.

I like ________ but my brother likes ________

1. A.
   play football; play piano
2. B.
   playing the football; playing the piano
3. C.
   playing football; playing the piano
4. D.
   play the football; play piano

—Which team are you going to play _______ the day after tomorrow?
—A team from No.7 Middle School. I hope we will win.
A.about     B.with    C.against