Sue Hendrickson is a self-taught fossil（化石）hunter. As a kid, Sue Hendrickson often walked with her head down. “People said, ‘Look up. Smile!” she says. “Now, I realize I was born to look for things and just didn’t know it.”
Sue Hendrickson does more than look—she finds valuable things: Shipwrecks（沉船）with treasure, ancient sunken cities, and in 1990, she found Sue, the world’s largest, most complete Tyrannosaurus rex（霸王龙）. Is Hendrickson lucky? Well, maybe. But she also knows how to look.
“I limit the area where I’m going to look,” she says. No one knew the location of the sunken ship San Diego in the Philippines. For a year, Hendrickson and other researchers searched papers and sailors’ diaries. “The descriptions of the ship’s sailors led us to the wreck,” she says. The team also used a tool that can respond to metal. This tool found the San Diego. All the work paid off. The 400-year-old ship was complete, with valuable gold and silver coins.
To find the dinosaur she calls “the biggest animal that ever walked on earth,” Hendrickson started with maps made to search for oil. What Hendrickson found was the largest and most complete T-rex found to date. The T-rex is 42 feet long with 200 bones! Because it is so complete, scientists were able to infer that Sue walked at about 6 miles per hour and did not run faster than 15 miles an hour. Before Sue was discovered, they thought T-rex was much faster. To learn more about T-rex Sue, go to the Field Museum in Chicago.
There’s plenty left to be found, Hendrickson says, including answers to mysterious such as how T-rex lived. “I tell kids that they need to grow up and work them out because all of us old persons haven’t yet!”
1. What’s Paragraph 2 mainly about?| A．An ancient city. | B．Hendrickson’s hobby. |
| C．The world’s largest T-rex. | D．Hendrickson’s great findings. |
| A．With a self made tool. | B．By starting with research. |
| C．By following sailor’s lead. | D．With the help of oil maps. |
| A．It helped scientists learn new things about T-rex. |
| B．It ran faster than any other T-rex. |
| C．It let people know how T-rex lived. |
| D．It was the biggest dinosaur. |
| A．Find more details. | B．Explore mysteries. |
| C．Visit the Field Museum. | D．Respect scientific research. |
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【推荐1】China Aerospace Science and Industry Corp launched two Kuaizhou 1A solid-fuel carrier rockets on Dee. 7th, 2019, marking the first time two flights have been made in a single day by the same type of rocket. Both were carrying satellites.
A Kuaizhou 1A set off at 10: 55 am at the Taiyuan Satellite Launch Center in Shanxi province to place a optical remote-sensing satellite into orbit. About six hours later, another Kuaizhou 1A was fired at 4:52 pm, sending up six small satellites developed by three domestic private enterprises.
The two missions marked the Kuaizhou 1A's sixth and seventh flights since January 2017, when the rocket made its debut, the company said. It was also the first time for any Chinese launch center to carry out two launches within one day, a testament to China's strong launch capabilities, experts said.
Kuaizhou is the largest soli-propellant rocket family in China. The Long March series mainly relies on liquid fuel. Nine Kuaizhou series rockets have been used since the first mission in September 2013.
Solid-fuel models such as the Kuaizhou series feature shorter preparation time, better mobility and a higher level of mission flexibility than large, liquid-propellant rockets. That's why a launch center can handle multiple fights in a short time span with such rockets, provided its ground facilities are sufficient.
Yu Zhjjin, head of the Taiyuan Satellite Launch Center, told Xinhua News Agency that fulfilling two missions in a single day indicated that the center has made a breakthrough in its rapid launch capabilities.
A new manufacturing complex for Kuaizhou rockets will soon be built. After the complex starts operations, Expace Technology will be able to produce at least 10 Kuaizhou 1As and 10 Kuaizhou 11s annually.
Kuaizhou 11, a larger and more powerful model, is under development at Expace and is expected to make is maiden flight soon.
1. How many satellites did Kuaizhou 1A rockets send up on Dee. 7h, 2019?| A．2. | B．11. |
| C．7. | D．6. |
| A．It's a testament to China's strong launch capabilities. |
| B．It marks Kuaizhou 1A's sixth and seventh flights since January 2017. |
| C．It's the first time for any Chinese launch center to carry out two launches within one day. |
| D．All of above. |
| A．Liquid fuel. | B．Solid fuel. |
| C．Less preparation time. | D．Better mobility. |
| A．Kuaizhou 11 Is Fully Developed for the Market |
| B．Two Rockets Lift Quite A Few Sallies in A Single Day |
| C．Kuaizhou 11 - Larger and More Powerful than Kuaizhou |
| D．First Time for China to Cary out 2 Launches Within One Week |
【推荐2】In a few years you will be able to order a transcript of your entire genetic code for less than $1,000.
Prenatal (出生前的) whole-genome sequencing will provide volumes of information beyond the currently available tests exclusively for genetic disorders such as Down’s syndrome or Tay-Saches disease. The three billion units of code furnished in the new tests will also dwarf(使…相形见的) the relative trickle (零散) of information provided by consumer gene-testing services such as 23andMe, which currently look only at perhaps about one million locations in the genome.
Ultimately certain agency will need to develop a comprehensive policy on prenatal whole genome testing. Bioethics scholars wrote an analysis last summer that calls on the medical community to develop a guide to the most relevant genomic data for future parents.
| A．Unfortunately, there aren’t nearly enough trained genetics counselors to handle the coming upsurge in demand for this type of information. |
| B．Adults cannot do much to alter their biological lot, but what if parents could examine their unborn child’s genome? |
| C．Cancer has become the first killer these years. That’s why people tend to take overtreatment with the knowledge of family history. |
| D．Another fear is that a customer without discussing with genetics counselor can receive information via the Internet about a multifold greater risk of breast cancer. |
| E．Another problem arises whether it is moral to choose to stop pregnancy because of the genome problem. |
| F．Attitudes toward child rearing might change along with the new technology. |
【推荐3】Your next Saturday night takeaway could be brought to you by a robot after a major food delivery company announced plans to use automated vehicles to transport meals. Europe’s biggest online takeaway food company Just Eat has partnered with Starship Technologies to deliver food with robots on the streets of London later this month. “Nobody has ever done deliveries with land-based robots,” said Allan Martinson, the chief operating officer of Starship.
The robot courier can travel up to 4 miles per hour for about 10 miles. It uses a GPS signal and nine cameras to navigate (确定方向). Instead of a person arriving at their door, customers could find themselves receiving a notification on their phone that says a robot is on its way and a code to unlock the automated courier. “Put the code in, the robot opens up, and there’s your food,” said David Buttress, chief manager of Just Eat.
The robot, which has so far been tested in Greenwich, Milton Keynes and Glastonbury, costs £ 1 to transport within 3 miles, compared with the £3 to £6 it costs for a human courier. To date 30 robots have driven nearly 5,000 miles without getting into an accident or finding themselves picked on by passers-by. They have driven in more than 40 cities around the world, including London and Tallinn, Estonia.
An initial worry was how the public would react to robots. But Martinson said the public has been calm when passing the delivery machine on the streets. “The most surprising reaction has been the lack of reaction,” said Martinson.
Another significant fear was that people would disrupt (扰乱) the robots, or try to steal them and their contents. To prevent this, the robot is fitted with nine cameras, two way audio, and movement sensors that send a warning if it is lifted off the ground. And it opens only with a passcode provided to the customer via a notification. “It’s much easier to shoplift than it is to steal a robot,” said Martinson.
1. Which of the following can replace the underlined word “courier” in Paragraph 2?| A．deliverer | B．collector |
| C．provider | D．guide |
| A．opens up upon hearing the code |
| B．travels 10 miles per hour at most |
| C．finds its way by means of GPS and cameras |
| D．sends a message to the customer upon arrival |
| A．they are easy to operate |
| B．the robot delivery is appreciated in big cities |
| C．the robot delivery is cheaper than human delivery |
| D．they can travel for 10 hours continuously |
| A．Safety of the robot delivery. |
| B．Accuracy of the robot delivery |
| C．Peoples indifference to the robots. |
| D．People’s concern about public traffic. |
| A．Great Improvement of Just Eat |
| B．Global Trend of Food Companies |
| C．New Robots to Move on the road |
| D．Delivery Robots to Replace Takeaway Drivers |
