1 . A “Quick Response Code”, also known as QR code is a type of barcode that Denso Wave developed, a Japanese barcode developer, in 1994.
The use of technology saves people's efforts in labor. In the early 1960s, the economy of Japan entered high economic growth. During this period, supermarkets and convenience stores thrived and were selling a wide variety of goods ranging from food to clothing. To keep up with the demand for checkout counters, cash registers（收银机）were widely used. Due to the heavy workload, cashiers on the checkout counters experienced numbness on their wrists and developed a kind of disease. As a solution to the problem, the Point of Sales (POS) system was developed and included the use of barcodes.
In the long run, developers noticed the problem barcodes held. The limit of 20 alphanumeric characters was not long enough in holding a product's information and the position of how a barcode is scanned leads to scan failures. Denso Wave stepped in and invented a new type of barcode that could hold more information and could be scanned in any scanner direction. Thus, QR code was introduced in 1994 and has made history up to today.
Today, QR codes are generally used in advertising, business, health care, and education. There are two types of QR codes: Static QR codes and Dynamic QR codes. Static QR codes are QR codes that are free and permanent. This type of QR code is not modifiable （可修改的） and therefore cannot change the data stored in the QR code. Dynamic QR codes are QR codes that are modifiable in content and can store more data even after you have printed it into the paper.
1. What's the author's main purpose in writing this text?| A．To explain how QR codes work. |
| B．To promote the use of QR codes. |
| C．To praise the efforts of Denso Wave. |
| D．To introduce the development of QR codes. |
| A．Remained stable. | B．Developed rapidly. |
| C．Slowed down. | D．Started off. |
| A．The lack of counters. | B．Barcodes' scan failures. |
| C．Cashiers' physical suffering. | D．The limited information in barcodes. |
| A．The types of QR codes. |
| B．The importance of QR codes. |
| C．The advantages of Dynamic QR codes. |
| D．The characteristics of Static QR codes. |
2 . Children should spend at least one hour playing and spending time in nature each day, according to the Wildlife Trusts （野生生物基金会）.
The children showed a great increase in personal health.
| A．Parents care much about their kids' nature time. ” |
| B．However, parents on their own aren't giving kids that time. |
| C．81 percent said they had better relationships with their teachers. |
| D．The calling comes from a study by University College London. |
| E．The students are asked to study in University College London for one day. |
| F．The UK organization speaks for 46 groups and 2,300 nature protection areas. |
| G．And they also showed a sense of connection with the natural world and high levels of enjoyment. |
