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(不超过三个词)。
People eat rice all over the world
Rice 1. (believe) to have been first grown in China or possibly somewhere else in eastern Asia around 10,000 years ago. 2. earliest evidence of rice farming comes from a 7,000-year-old site near the lower Yangtze River village of Hemudu in Zhejiang province in China.
Rice is a kind of food which requires much labor. In developed countries, the planting and harvesting is done 3.(most) with machines. 4., in much of the world, these things are still largely done by hand. It takes one farmer 1,000 to 2,000 working hours5.(raise)a rice crop on 2.5 acres of land. The fact that rice needs so much labor means 6.(keep) a lot of the population on the land.
Rice is also a crop 7. need of lots of water. The wet rice grown in most of Asia needs hot weather after a period of rain and conditions provided by the rainy seasons affect many of the places 8. rice is grown.
Rice straws(稻杆）9.(leave) in the fields add nutrients(营养物) to the soil after rice is harvested(收割). For the next crop, rice farmers can often enjoy a good harvest by adding little 10. no fertilizer.(肥料)
根据汉语提示及首字母，写出所缺单词。
1.If you have any questions, please don’t h________to ask me.
2.He doesn’t make friends with others. As a c__________, he is rather lonely..
3.The women made an a_______ to the saleswomen for being so impolite.
4.His _______(缺乏) of mind during driving nearly caused an accident.
5.It's impolite to keep _________ (打断) a speaker during a lecture
6.He is a celebrity now. But can you imagine the difficulties he o________ before success.
7.He jumped up in ______(恐慌) at the sight of the big snake.
8.Try to act _______(自信地), even if you feel nervous.
9.The f_________ of the ear is to listen.
10.He is a _______(天才的) artist.
Giving a gift that will stand the test of time is always a challenge,but giving plants is one way to try.Whatever type of plant you choose,it’s sure to last longer than cut flowers1.
The most important thing to consider is where it will live.If your friend’s place is bright and sunny,a succulent(多肉植物)makes sense. 2.Succulents naturally grow in desert-like environments,while orchids(兰花)grow in damp forests.
3.It can help you understand what conditions it prefers.So,while picking out plant gifts,ask the salesperson for more information to ensure what you choose is a match for where it will end up.
Whatever plant you choose,make peace with the fact that it may or may not survive.After all,a house’s inside is pretty dissimilar to where that plant naturally grows.So we can all only do our best.4.If their leaves dry up,they’re not getting enough water.If they’re reaching their leaves toward the light,they may need more of it.So offer that advice to your friend,and then let it go.
If you have a plant-interested friend on your gift list,why not choose a plant which is easy to keep alive in his place and looks lovely?You don’t need to wrap it,as a simple bow is enough.5.It’s a way to ensure your gift gets a good start in life.
A.You can always put them inside a paper bag.
B.But you can consider giving a nice pot and bag of soil.
C.Knowing the natural history of a plant is equally important.
D.Even relatively experienced green thumbs sometimes lose
E.The key is to pay attention to plants-really look at them each day..
F.If you want to choose plants as gifts,the ideas below will help you on your way.
G.If your friend has a cool home with no direct sun,an orchid is probably a better choice.
Researchers have been looking forward to using tiny flying robots to settle important tasks. The various machines could be used to help astronauts on space missions, and even to help bees with plant pollination(授粉). However, fitting the heavy electric equipment that is used to power and control the wings into the tiny robot has been challenging. Now thanks to RoboBee X-Wing—the world’s lightest aerial vehicle that can fly not tied to a power source.
Made by Harvard researchers, the insect-inspired robot weighs only 259 milligrams, has four wings whose distance is 3.5 centimeters, and stands 6.5 centimeters high. Its four small wings, which can flap up(拍动) to 170 times a second, are controlled by actuators(驱动器). They become small when the electricity passes through them. Six small solar cells, fitted above the wings to prevent them from disturbing the flight, provide the power.
RoboBee X-Wing is powered by six solar cells. To test its flying abilities, the team, led by doctor Noah Jafferis and PhD student Elizabeth Helbling, exposed the RoboBee X-Wing’s solar cells to LED lighting. To their delight, the tiny robot’s wings began to flap, and it rose, keeping a flight for about half a second. Though the robot lost its flight ability as soon as the power source was turned off, its short flight was cheered for its huge effect on the future of tiny flying robots.
However, though the current RoboBee X-Wing is a step in the right direction, it is not quite ready for main time. The researchers also hope to experiment with other power sources, such as batteries, sun light or radio frequency signals, and to add more advanced “brains” and sensor systems to navigate and complete tasks independently.
1.What can we know about small flying robots according to the first paragraph?
A.They are made to do ordinary tasks by scientists.
B.They can be used only for very dangerous task.
C.They can be powered directly by the energy of the sun.
D.It’s not easy to fit the heavy electric equipment into them.
2.Why is RoboBee X-Wing considered having a big effect on the future of tiny flying robots?
A.Because it is ready for the instant use.
B.Because it can take off and fly out of control.
C.Because it can fly not tied to a power source.
D.Because it can settle important tasks.
3.Which of the following is TRUE about RoboBee X-Wing?
A.It can’t be used in crowded places.
B.It can be used for giving directions.
C.It can use radio signals to power itself.
D.It still can’t be used widely at present.
4.In which section of a newspaper may this text appear?
A.Entertainment. B.Science.
C.Education. D.Health.
The United States has about 475,000 school buses ---all painted yellow. Each day they carry more than 25,000,000 children, half of all schoolchildren in the country. But these buses, on average, use four liters of diesel （柴油） fuel to travel less than sixteen kilometers. When the school year began last fall, diesel averaged 55 cents a liter nationally. The price nearly doubled, to a dollar and 8 cents, by the end of school in June.
Bob Riley speaks for the American School Bus Council. He says fuel prices for schools are not much lower than others have to pay. As a result, schools are looking for ways to reduce transportation costs. Bus routes are being redrawn or, in some cases, canceled. Some areas are buying buses that use natural gas or other alternative fuels. Other steps include fewer field trips and less travel by sports teams. And some school districts may end any bus service not required by law.
Studies show that school buses are the safest form of transportation to and from school. The American School Bus Council says cuts in bus service are bad for children and possibly the environment. It says removing buses from the road will mean an increase in other vehicles transporting students. Spokesman Bob Riley says another concern is that reducing bus services might reduce attendance.
But it could also get more children to walk or bicycle to school. And that would surely make people happy at the National Center for Safe Routes to School. More kids walking or biking safely to school is the aim of a three-year-old federal program, part of an international movement. The goal is to increase physical activity and reduce air pollution. The United States will celebrate Walk to School Day on October eighth this year. But for some students, high fuel prices could make every day a walk-to-school day.
1.What does this passage mainly tell us?
A.High fuel prices’ influences on school buses.
B.New measures to transport school students.
C.The safest form of student transportation.
D.The origin of Walk to School Day.
2.What can we learn from Paragraph 3?
A.Cuts in bus service will have negative results.
B.The US government is encouraging cuts in bus services.
C.The US schools are searching for the safest transportation means.
D.Reducing bus service will do a lot of good to the environment.
3.In order to cut down transportation cost, many schools take the following measures EXCEPT__.
A.changing some bus routes
B.stopping some bus routes
C.asking parents to drive children to and from school
D.using other types of fuels
4.The National Center for Safe Routes to School encourages more children to walk or bike to school in order to ____.
A.save more fuels and diesel for the country
B.keep the children safe on their way to school
C.make the children live a simple life
D.keep the children healthy and the environment clean
Most people know that Marie Curie was the first woman to win the Nobel Prize, and the first person to win it twice. However, few people know that she was also the mother of a Nobel Prize winner.
Born in September, 1897, Irene Curie was the first of the Curies’ two daughters. Along with nice other children whose parents were also famous scholars, Irene studied in their own school, and her mother was one of the teachers. She finished her high school education at the College of Sévigné in Paris.
Irene entered the University of Paris in 1914 to prepare for a degree in mathematics and physics. When World War I began, Irene went to help her mother, who was using X-ray facilities (设备) to help save the lives of wounded soldiers. Irene continued the work by developing X-ray facilities in military hospitals in France and Belgium. Her services were recognised in the form of a Military Medal by the French government.
In 1918, Irene became her mother’s assistant at the Curie Institute. In December 1924, Frederic Joliot joined the Institute, and Irene taught him the techniques required for his work. They soon fell in love and were married in 1926. Their daughter Helene was born in 1927 and their son Pierre five years later.
Like her mother, Irene combined family and career. Like her mother, Irene was awarded a Nobel Prize, along with her husband, in 1935. Unfortunately, also like her mother, she developed leukemia because of her work with radioactivity (辐射能). Irene Joliot-Curie died from leukemia on March 17, 1956.
1.Why was Irene Curie awarded a Military Medal?
A. Because she received a degree in mathematics.
B. Because she contributed to saving the wounded.
C. Because she won the Nobel Prize with Frederic.
D. Because she worked as a helper to her mother.
2.Where did Irene Curie meet her husband Frederic Joliot?
A. At the Curie Institute.
B. At the University of Paris.
C. At a military hospital.
D. At the College of Sévigné.
3.When was the second child of Irene Curie and Frederic Joliot born?
A. In 1932. B. In 1927.
C. In 1897. D. In 1926.
4.In which of the following aspects was Irene Curie different from her mother?
A. Irene worked with radioactivity.
B. Irene combined family and career.
C. Irene won the Nobel Prize once.
D. Irene died from leukemia.
