发布时间 : 星期日 文章北京市海淀区2019届高三第一学期期末练习 英语(1)更新完毕开始阅读ff69c92c3a3567ec102de2bd960590c69ec3d8c2
Sweat rolled off my forehead as my younger brother and I sat under the tree.
“Hi, Jason,” said my brother, Chad. “Do you hear the train?” I listened, but I heard only thunder in the distance. It was still miles away, but I heard it. It grew stronger and louder as it gained speed and got closer. How could that be? I wondered.
We were about to grab our bikes to see what it actually was when we stopped. What looked like a flock of birds darkened the sky overhead. When I looked at it closer, I realized it wasn’t birds. It was a tornado(龙卷风). The hairs on the back of my neck stood up as the air turned green and heavy. The sun disappeared. The wind strengthened and roared. I grabbed Chad’s arm and pulled him toward the house.
I tried to open the door, but it was as if an invisible force pushed against me. The door refused to open. When we finally managed to get inside, we found it was as dark as night. Our family had practiced a tornado safety plan many times. But I had never imagined that it would be just Chad and me at home the first time we needed to use it.
“Inside the closet!” I yelled. It was small and crowded, but we got in it anyway. Chad began to cry. “It’s going to be all right.” I told him. But I was worried about Mom. I hope she’d found a safe place to wait out the storm.
The storm continued to rage. I heard a thud on the roof. The whole house creaked and groaned. Then it was quiet. I opened the door and we inched our way out of the closet. Rain had got in through the open window and wet the carpets. A kitchen window had shattered, its screen blown away. I looked at the backyard. The tree was uprooted, and broken branches lay on the ground.
“Jason, I can’t get service,” Chad said as he held the phone in his hand. We had no electricity, either. I glanced at the wall clock. Had it been only 20 minutes since we’d first heard the thunder?
Then I heard footsteps toward the house. Mom had made it home safely. “Boys!” she yelled. “Are you all right?”
We ran out and hugged her. The sun came out, and this time it shone bright and clear.
56. When the tornado struck, ________.
A. the boys felt terrified and asked for help B. a flock of birds darkened the sky overhead C. the boys protected themselves in a safe place D. the sound of the train grew stronger and louder 57. What can we learn from the passage? A. Mom had trouble in finding the boys. B. Jason knew how to deal with a tornado. C. The tornado lasted for over half an hour. D. Their house was flooded by the heavy rain. 58. Which of the following words can best describe Jason? A. Calm and thoughtful.
B. Cautious and curious.
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C. Dependent and sensitive. D. Creative and active.
B
While your competitors are still waiting for the water to warm up, you could be giving your dragon boat season a jump-start with a paddling vacation in Orlando, Florida. Spring camp is suitable for all ages and levels, perfect for those looking for a break from the ordinary (or cold) while enjoying the sport of dragon boat with like-minded people.
The 2019 Florida Training Camp promises to be a week of fun and fitness on and off the water. Register as a team, small group or individual, with customizable(定制的) add-ons for those looking to give an edge to their personal performance.
The week will close out on Saturday with a camp BBQ and a racing regatta! Opening festivities begin on the evening of Sunday April 15th with camp check-in. Training begins on Monday April 16th and ends on Saturday April 21st.
GWN FLORIDA TRAINING CAMP Dates: Monday April 16th to Saturday April 21st, 2019 Price: $395 USD, $370 before January 19th, 2019 Features include: ? Daily schedule
? Twice daily dragon boat training sessions ? Daily video analysis
? Individual help (twice weekly) ? Additional daily group sessions ? Camp-sponsored socials
CUSTOMIZE YOUR CAMP EXPERIENCE The options outlined below are available during the week of camp and can be booked as an add-on. Add-ons can be included in your initial registration or purchased at a later time through the online registration system.
Option 1: High Performance Program, Cost: $75 USD
If you want to learn how to move your boat faster, then the High Performance program is for you! This option consists of three progressive one-hour sessions completely focused on racing techniques, strategies, and drills, with the goal of increasing your overall speed.
Option 2: Coaching Community Dragon Boat (Level 1), Cost: $175 USD
This course is intended for anyone interested in entry-level coaching. Expect the material included in the course to cover safety, ethics(道德) in coaching, coach-athlete communication, basic dragon boat technique, basic physiological requirements of dragon boat racing, race and practice planning, plus more.
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59. According to the passage, in this camp.
A. you will enjoy a BBQ at the opening B. you need to be over 18 C. you should have some dragon boat skills A. $ 370.
B. $ 395.
D. you can have fun on land C. $ 445.
D. $ 470.
60. How much does the camp with Option 1 cost if you pay at the end of 2019? 61. We can learn from the passage that _____. A. Option 1 includes a three-hour session B. add-ons can be bought during registration C. Option 2 is for those fond of advanced coaching D. video analysis is covered in the coaching course 62. The purpose of the passage is to ______. A. recommend an upcoming training camp B. introduce the options in a training camp C. provide ideas about how to spend a vacation D. offer advice on how to win in dragon boat races
C
As the world’s population grows, farmers will need to produce more and more food. And large farms are increasingly using precision farming to increase yields (产量), reduce waste, and reduce the economic and security risks that inevitably accompany agricultural uncertainty.
Traditional farming relies on managing entire fields—making decisions related to planting, harvesting, irrigating, and applying pesticides and fertilizer (农药和化肥)—based on regional conditions and historical data. Precision farming, by contrast, combines sensors, robots, GPS, mapping tools and data-analytics software to customize the care that plants receive without increasing labor. Robot-mounted sensors and camera-equipped drones (无人机) wirelessly send images and data on individual plants to a computer, which looks for signs of health and stress. Farmers receive the feedback in real time and then deliver water, pesticide or fertilizer in adjusted doses(剂量) to only the areas that need it. The technology can also help farmers decide when to plant and harvest crops.
As a result, precision farming can improve time management, reduce water and chemical use, and produce healthier crops and higher yields—all of which benefit farmers’ bottom lines and conserve resources while reducing chemical runoff.
Many small businesses are developing new software, sensors, and other tools for precision farming, as are large companies such as Monsanto, John Deere, Bayer, Dow and DuPont. The U.S. Department of Agriculture, NASA and the National Oceanic and Atmospheric Administration all support precision farming, and many colleges now offer course work on the topic.
In a related development, seed producers are applying technology to improve plant characteristics. By
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following individual plants over time and analyzing which ones flourish in different conditions, companies can relate the plants’ response to their environments with their genomics(基因组学). That information, in turn, allows the companies to produce seed varieties that will grow well in specific soil and weather conditions. This advanced technology may also help to improve crop nutrition.
Farmers do not universally welcome precision agriculture for various reasons, such as high equipment costs and lack of access to the Internet. The technology may bring great challenges to experienced farmers who are not good at computers. And large systems will also be beyond the reach of many small farming operations in developing nations. But less expensive, simpler systems could potentially be applied. For others, though, cost savings in the long run may reduce the financial concerns. And however reticent some farmers may be to adopt new technology, the next generation of farmers are likely to warm to the approach.
63. Precision farming differs from traditional farming partly because it ________. A. provides real time information about target crops B. relies on regional conditions and historical data C. offers plenty of water, pesticides and fertilizer D. guarantees high yields with more labor
64. About precision farming, we can learn that________. A. the government holds a cautious attitude B. it draws positive responses from businesses C. seed producers have already made huge profits D. large systems will soon be built in developing nations
65. The underlined word “reticent” in the last paragraph probably means ________. A. disappointed
B. confused
C. shocked
D. unwilling
66. What is the best title for the passage? A. Precision Farming Increases Crop Yields B. More Challenges Faced by Modern Farmers C. Development of Farming Systems in the U.S. D. Traditional Farming is Gradually Disappearing
D
Is Technology Moving Too Fast?
Differing fundamentally from the prior technologies such as telephone, television and automobile, which are better known as lock-in, the new technologies—computers, biotechnology and nanotech (纳米技术)—are self-accelerating. This means that the products of their own processes enable them to develop even more rapidly. Since they drive almost whole sectors of society, creating unstable, unpredictable and
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