题目内容
（1）It is a ________field on which many kinds of plants can grow well．
（2）These young trees are turning yellow．You'd better ________the soil by using manure．
（3）Bone powder（骨粉）and nitrates（硝酸盐）are common ________．
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解析：
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fertile形容词，意为“肥沃的，富饶的”；fertilize动词。意为“使肥沃，使丰饶”；fertilizer名词，意为“肥料”；fertilization名词，意为“肥沃，施肥”。 |
天天向上一本好卷系列答案
小学生10分钟应用题系列答案No one knows for certain why people dream, but some dreams misht be connected to the mental processes that help us learn. In a recent study, scientists found a connection between nap-time (午睡时间) dreams and better memory in people who were learning a new skill.
“I was astonished by this finding,” Robert Stickgold told Science News. He is a cognitive neuroscientist at Harvard Medical School who worked on the study of-how the brain and nervous system work, and cognitive studies look at how people learn and reason. So a cognitive neuroscientist may study the brain processes that help people learn.
In the study, 99 college students between the ages of 18 and 30 each spent an hour on a computer, trying to get through a virtual maze (虚拟迷宫). The maze was difficult, and the study participants had to start in a different place each time they tried - making it even more difficult. They were also told to find a particular picture of a tree and remember where it was.
For the first 90 minutes of a five-hour break, half of the particularity stayed awake and half were told to take a short nap. Participants who stayed awake were asked to describe their thoughts. Participants who took a nap were asked about their dreams before sleep and after steep - and they were awakened within a minute of sleep to describe their dreams.
About a dozen of the 50 people who slept said their dreams were connected to the maze. Some dreamed about the music that had been playing when they were working; others said they dreamed about seeing people in the maze. When these people tried the computer maze again, they were generally able to find the tree faster than before their naps. However, people who had other dreams, or people who didn’t take a nap, didn’t show the same improvement.
Stickgold suggests the dream itself doesn’t help a person learn - it’s the other way around.
【小题1】It is a cognitive scientists job to study__ .
| A．how people dream and learn |
| B．the structure of the nervous system |
| C．whether someone is reasonable |
| D．the process of understanding |
| A．find the hidden tree in the maze |
| B．test the design of a difficult virtual maze |
| C．train people’s memory |
| D．see how dreams and learning are connected |
| A．how people dream | B．what people dream |
| C．when people dream | D．where people dream |
| A．how learning process caused the dream |
| B．how a dream helps a person learn |
| C．how dreams and learning influence each other |
| D．how to improve people’s memory |
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Ancient Rome was one of the world’s most powerful empires more than 2,000 years ago. The Romans’ ideas about roads, laws, government and buildings still influence us today.
Italy is shaped like a boot.
The Colosseum in Rome was built during the time of the Roman Empire, in the first century A.D.__【小题1】___It is a popular tourist attraction today.
Italy is well-known for its designers, who create cars, handbags, clothes, shoes and other items that are in demand for their style and fine workmanship.
Today, the economy of Italy is stronger than in the past. 【小题2】 Today, manufacturing and tourism are the main sources of income. There are some big companies, but Italy has many smaller companies, too.
【小题3】 The southern part does not offer as many manufacturing jobs, so it is not as prosperous.
Italy is a member of the European Union, a group of countries that join together for better trade. The currency, or money, they use is called the “euro”.
Food and eating good meals are important to Italians. ___【小题4】____
Popular foods include pasta, risotto, minestrone and pizza．McDonald’s is also popular there. Many families still eat their main meal in the middle of the day. 【小题5】 Families spend a lot of time together.
| A．The family is very important to the Italian way of life. |
| B．The country used to depend on agriculture. |
| C．Mountains cover about three-fourths of the country. |
| D．It could seat about 50,000 people, who went to see fights between animals and people. |
F. Italy has several islands off the coast.
G. The northern part of the country is the main manufacturing center.
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多途选项。
Swimming cycling, jogging, skiing, dancing, walking or any of dozens of other activities can help your heart. 1. . Whether it is a structured exercise program or just part of your daily routine, all exercise adds up to having a healthier heart. Here are some tips for exercise success.
Choose activities that are fun and add variety. Develop several activities that you can
enjoy. 2.
Wear comfortable, properly fitted shoes and comfortable, loose—fitting clothing appropriate for the weather and the activity.
Find a convenient time and place to do activities. 3. . If you miss an exercise opportunity, work activity into your day another way.
Use music to keep yourself entertained.
4. Decide what kind of support you need. Do you want them to remind you to exercise? Exercise with you regularly or occasionally? Be understanding when you get up early to exercise? Spend time with the children while you exercise? Try not to ask you to change your exercise routine? Share your activity time with others. Ask your family members, friends or co—workers for help.
Don’t overdo it, especially at first. You can slowly increase the time and intensity (强度) of your activities as you become more fit. 5.
Keep a record of your activities. Reward yourself at times. Nothing will inspire you more than success!
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A．Try to make it a habit, but be flexible. |
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B．They all cause you to feel warm and breathe heavily without being out of breath. |
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C．Be an active role model for your children. |
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D．That way, exercise will never seem boring. |
E. If you are overweight or have a high risk of heart disease, see your doctor for medical advice before exercising.
F. Surround yourself with supportive people.
G. Gradually, work up to exercising on most days of the week for 30—60 minutes.