假定你是李华，你校来自爱尔兰的外教Peter因病回国休假。请给他写一封电子邮件，内容包括:1. 询问近况；2. 分享班级最新消息；3. 表达祝愿。
注意:1. 词数80左右；2. 可适当增加细节，以使行文连贯。
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阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Some time after 10，000 BC，people made the first real attempt to control the world they lived 1. ，through agriculture. Over thousands of years，they began to depend less on 2. could be hunted or gathered from the wild，and more on animals they had raised and crops they had sown.
Farming produced more food per person 3. hunting and gathering，so people were able to raise more children. And，as more children were born，more food 4.(need). Agriculture gave people their first experience of the power of technology 5.(change)lives.
By about 6000 BC，people 6. (discover)the best crops to grow and animals to raise. Later，they learned to work with the 7. (season)，planting at the right time and，in dry areas， 8. (make)use of annual floods to irrigate(灌溉)their fields.
This style of farming lasted for quite a long time. Then，with 9. rise of science，changes began. New methods 10. (mean)that fewer people worked in farming. In the last century or so，these changes have accelerated. New power machinery and artificial fertilizers(化肥)have now totally transformed a way of life that started in the Stone Age.
I’ve been farming sheep on a hillside for 54 years. I use a small tractor to get about. My dog Don always sits beside me in the passenger scat.
One morning I _______ a lost lamb when I was in the top field，near where a motorway cuts through my land. The lamb had become separated from its _______ , so I jumped out of the tractor to _______ it while Don stayed in his scat.
Lamb and mother _______ , I turned back to the tractor only to see it move suddenly away from me. This was so _______ because I had put the handbrake on when I jumped out. _______ Don had somehow made the _______move.
My heart froze in my chest as I _______ the tractor heading towards the _______ .I ran desperately but failed to __________. It crashed through a wooden fence and disappeared. The __________ thing I saw was Don’s face, looking calmly back at me.
Heart in mouth, I __________ the fence and looked over. The tractor was __________against the crash barrier in the central reservation, having miraculously(奇迹般地) crossed the __________ road with fast-flowing traffic. I couldn’t see Don, but as I __________ the tractor he jumped out onto the road, apparently __________ , and dashed back to me.
The police __________ and the motorway ran normally again. I couldn't quite believe my __________ it turned out no one got badly hurt, but the outcome could have been __________ .Don was given a special __________ that night—I didn’t want him thinking I was angry with him.
1.A.dropped B.spotted C.carried D.returned
2.A.kids B.friends C.owner D.mother
3.A.ask about B.play with C.tend to D.run into
4.A.freed B.switched C.reunited D.examined
5.A.unexpected B.dangerous C.embarrassing D.difficult
6.A.Fortunately B.Generally C.Immediately D.Obviously
7.A.lamb B.vehicle C.seat D.fence
8.A.saw B.stopped C.remembered D.drove
9.A.crowd B.motorway C.field D.hill
10.A.take off B.catch up C.hold back D.get out
11.A.real B.best C.basic D.last
12.A.fixed B.noticed C.reached D.closed
13.A.resting B.running C.parking D.turning
14.A.sleep B.long C.rough D.busy
15.A.abandoned B.approached C.recognized D.repaired
16.A.unclean B.uncertain C.unhurt D.unhappy
17.A.arrived B.replied C.survived D.waited
18.A.ability B.dream C.luck D.idea
19.A.common B.confusing C.desirable D.awful
20.A.meal B.test C.job D.lesson
I experienced years of loneliness as a child. 1. His friends teased him about babysitting his sister and his interests were far different from mine. With no other kids of my age in the neighborhood, I had to spend hours by myself.
A bright spot for me turned out to be reading. My love of the written word began early as my mother read to me every evening. 2. I started reading books on my own before age 5 and my mother took me to the public library once a week to borrow several books. I quickly graduated from typical children’s books to ones with fewer pictures and longer chapters. Reading opened new worlds to me. 3.
My mother also encouraged me to make what I wanted. I tried making toy cars with cardboard boxes and constructing buildings from leftover cardboard and bits of wood my father gave me. When my mother saw my creations, she told me how creative my designs were. 4. I learned a lot about how to extend the life of objects and transform them into something new and useful. It was a trait(特点) others found helpful, and I soon had friends who wanted to make things with me.
5.My parents made it a point for their two kids to spend time outside, no matter the weather or season. My brother, of course, raced off to be with his friends, while I had plenty to do myself. There was making leaf houses in autumn, ice skating in winter, and so much more. They’re all memories I treasure today.
A.I wasn't alone any longer.
B.I enjoyed reading stories aloud.
C.I was invited to play with another kid.
D.I loved the colorful photographs in the books.
E.Another habit I formed early was being outdoors.
F.Thus, I began my lifelong interest in making things.
G.My older brother couldn’t be bothered to play with me.
Challenging work that requires lots of analytical thinking, planning and other managerial skills might help your brain stay sharp as you age, a study published Wednesday in the journal Neurology suggests.
Researchers from the University of Leipzig in Germany gathered more than 1, 000 retired workers who were over age 75 and assessed the volunteers’ memory and thinking skills through a battery of tests. Then, for eight years, the scientists asked the same group to come back to the lab every 18 months to take the same sorts of tests.
Those who had held mentally stimulating(刺激), demanding jobs before retirement tended to do the best on the tests. And they tended to lose cognitive(认知) function at a much slower rate than those with the least mentally challenging jobs. The results held true even after the scientists accounted for the participants’ overall health status.
“This works just like physical exercise, ” says Francisca Then, who led the study. “After a long run, you may feel like you’re in pain, you may feel tired. But it makes you fit. After a long day at work-sure, you will feel tired, but it can help your brain stay healthy. ”
It's not just corporate jobs, or even paid work that can help keep your brain fit, Then points out. A waiter’s job, for example, that requires multitasking, teamwork and decision-making could be just as stimulating as any high-level office work. And “running a family household requires high-level planning and coordinating(协调), ” she says. “You have to organize the activities of the children and take care of the bills and groceries. ”
Of course, our brains can decline as we grow older for lots of reasons-including other environmental influences or genetic factors. Still, continuing to challenge yourself mentally and keeping your mind busy can only help.
1.Why did the scientists ask the volunteers to take the tests?
A.To assess their health status. B.To evaluate their work habits.
C.To analyze their personality. D.To measure their mental ability.
2.How does Francisca Then explain her findings in paragraph 4?
A.By using an expert’s words. B.By making a comparison.
C.By referring to another study. D.By introducing a concept.
3.Which of the following is the best title for the text?
A.Retired Workers Can Pick Up New Skills
B.Old People Should Take Challenging Jobs
C.Your Tough Job Might Help Keep You Sharp
D.Cognitive Function May Decline As You Age
The traffic signals along Factoria Boulevard in Bellevue, Washington, generally don't flash the same length of green twice in a row, especially at rush hour. At 9:30am, the full red/yellow/green signal cycle might be 140 seconds. By 9:33am, a burst of additional traffic might push it to 145 seconds. Less traffic at 9:37am could push it down to 135. Just like the traffic itself, the timing of the signals changes.
That is by design. Bellevue, a fast-growing city just east of Seattle, uses a system that is gaining popularity around the US: intersection(十字路口) signals that can adjust in real time to traffic conditions. These lights, known as adaptive signals, have led to significant declines in both the trouble and cost of travels between work and home.
“Adaptive signals can make sure that the traffic demand that is there is being addressed, ” says Alex Stevanovic, a researcher at Florida Atlantic University.
For all of Bellevue’s success, adaptive signals are not a cure-all for jammed roadways. Kevin Balke, a research engineer at the Texas A&M University Transportation Institute, says that while smart lights can be particularly beneficial for some cities, others are so jammed that only a sharp reduction in the number of cars on the road will make a meaningful difference. “It’s not going to fix everything, but adaptive signals have some benefits for smaller cities,” he says.
In Bellevue, the switch to adaptive signals has been a lesson in the value of welcoming new approaches. In the past, there was often an automatic reaction to increased traffic: just widen the roads, says Mark Poch, the Bellevue Transportation Department’s traffic engineering manager. Now he hopes that other cities will consider making their streets run smarter instead of just making them bigger.
1.What does the underlined word “that” in paragraph 2 refer to?
A.Increased length of green lights. B.Shortened traffic signal cycle.
C.Flexible timing of traffic signals. D.Smooth traffic flow on the road.
2.What does Kevin Balke say about adaptive signals?
A.They work better on broad roads.
B.They should be used in other cities.
C.They have greatly reduced traffic on the road.
D.They are less helpful in cities seriously jammed.
3.What can we learn from Bellevue’s success?
A.It is rewarding to try new things. B.The old methods still work today.
C.I pays to put theory into practice. D.The simplest way is the best way.
