keep the enemy out of his empire, Emperor Qin Shi Huang had all the walls joined up 查看更多

 

题目列表(包括答案和解析)

阅读下列应用文及相关信息,并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑。

首先请阅读关于不同月份天气特征的信息。

A. February – it’s one of the most pleasant months of the year. Most days have clear, sunny skies and the average temperature is a very cool 14°C. With an average monthly rainfall of only 20mm it is also one of the driest months.

B. April – it’s a warm spring month with moderate temperatures averaging around 21°C, and it is very wet, with 200mm rainfall on average for the month.

C. June – although it is the start of summer with average temperatures reaching a hot 28°C, you will not see much sun as it is usually very cloudy. It is also one of the wettest months of the year with frequent rain and average monthly rainfall of 240mm.

D. August – it is the hottest month of the year with average temperatures of 30°C. Generally very sunny during the day, but with frequent heavy rain showers in the evening that make it the wettest month of the year with an average monthly rainfall of 280mm.

E. October – this mid-autumn month is still pleasantly warm with average temperatures of 20°C. Days are mostly cloudy and overcast although rainfall levels are relatively low, averaging 70mm for rain for the month.

F. December – it is one of the coldest months of the year with average temperatures of 13°C. Night can be very cold. Mostly sunny, with a moderate average monthly rainfall of 60mm.

以下是五种蔬菜的种植指引,请把蔬菜与适宜种植的月份匹配起来。

1.Corn – it requires a warm weather for strong and rapid growth. As it needs very wet soil, choose a time when there will be plenty of rain. High temperatures will cause corn to lose its sweet flavour.

2.Tomatoes – these popular plants are easy to grow as they can resist most pests and diseases. They require low temperatures, plenty of direct sunlight and dry conditions for best results.

3.Onions – these are a cold-season crop, easy to grow in the right conditions. They need a moderate amount of rain to keep the soil damp, but too much will cause them to rot. They should be planted during sunny period, as they grow best with plenty of direct sunlight.

4.Eggplants – these are tropical or subtropical, hot-season vegetables that need lots of direct sunlight. They grow best when the weather is very hot and there is plenty of water in the soil.

5.Potatoes – the taste of home-grown potatoes is far superior to store bought ones. They need a mild to warm conditions and relatively dry soil for best growth. They also require cloudy, overcast conditions for most of the time to prevent sunburn.

 

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Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants Produce volatile compounds, chemicals that easily change from a liquid to a gas. A flower’s sweet smell, for example, comes from volatile compounds that the plant produces to attract insects such as Bugs and bees.
Plants can also detect volatile compounds produced by other plants. A tree under attack by Hungry insets, for instance, may give off volatile compounds that let other trees know about the Attack. In response, the other trees may send off chemicals to keep the bugs away ——or even  Chemicals that attract the bugs’ natural enemies.
Now scientists have created a quick way to understand what plants are saying: a chemical Sensor(传感器)called an electronic nose. The “e-nose” can tell compounds that crop plants make When they’re attacked Scientists say the e-nose could help quickly detect whether plants are being Eaten by insects. But today the only way to detect such insects is to visually inspect individual Plants. This is a challenging task for managers of greenhouses, enclosed gardens than can house Thousands of plants.
The research team worked with an e-nose than recognizes volatile compounds. Inside the device, 13 sensors chemically react with volatile compounds Based on these interactions, the e-nose gives off electronic signals that the scientists analyze using computer software.
To test the nose, the team presented it with healthy leaves from cucumber, pepper and tomato plants, all common greenhouse crops. Then scientists collected samples of air around damaged leaves from each type of crop, These plants had been damaged by insects, or by scientists who made holes in the leaves with a hole punch(打孔器). The e-nose, it turns out, could identify healthy cucumber, pepper and tomato plants based on The volatile compounds they produce, It could also identify tomato leaves that had been damaged. But even more impressive, the device could tell which type of damage ---- by insects or with a hole Punch ---- had been done to the tomato leaves.
With some fine-tuning, a device like the e-nose could one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A device like this could also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareva, a biochemist at Purdue University in West Lafayette, Ind. who studies smells of flowers and plants. Hopefully, scientists believe, the device could bring large benefits to greenhouse managers in the near future.
【小题1】We learn from the text that plants communicate with each other by____.

A.making some soundsB.waving their leaves
C.producing some chemicalsD.sending out electronic signals
【小题2】What did the scientists do to find out if the e-nose worked?
A.They presented it with all common crops.
B.They fixed 13 sensors inside the device.
C.They collected different damaged leaves.
D.They made tests on damaged and healthy leaves.
【小题3】According to the writer, the most amazing thing about the e-nose is that it can___.
A.pick out ripe fruits
B.spot the insects quickly
C.distinguish different damages to the leaves
D.recognize unhealthy tomato leaves
【小题4】We can infer from the last paragraph that the e-nose_____.
A.is unable to tell the smell of flowers
B.is not yet used in greenhouses
C.is designed by scientists at Purdue
D.is helpful in killing harmful insects

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Getting your children to study can be a little like getting them to eat their vegetables.

__1.__ Make a study time and have it at the same time every day. This will help your kids to learn to schedule their day and will give them a sense of control over how they spend their time.

Allow them to study in blocks of time,such as for half an hour with a five-minute break in the middle.__ 2.__ Ideal (理想的) study times are after dinner or right after school before dinner.

Never allow your children to study in front of the television,as that will encourage passive activity.__ 3.__

You’ll also need to help your kids find the right place to study. After you’ve set up a good study time for little learners,set up a good place where they can get those creative juices flowing.

__4.__ Make sure there is a table or a desk and a comfortable chair.

_5.__ This includes helping them out with their homework sometimes and being there for them with the answers to any questions. The input you give your children during study periods will help form a bond and help make studying enjoyable.

 

A. Pick a place where your children can study properly.

B. Hold them to the schedule (时间表) they create for themselves.

C. Finally, spend time with your kids when they're studying.

D. Keep the atmosphere light and offer lots of encouragement,too.

E. Instead,use TV as a treat or a reward when the homework is completed.

F. Try to stop this bad habit by offering some sort of reward.

G. One of the best ways to form good study habits for your kids is to design a schedule that they keep to.

 

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下面的短文缺了5句话。仔细阅读该短文,并从所给的6个句子中选出符合短文意思的5个句子,填入到短文中去。

  Like soccer, modern rugby began in Great Britain in the 19th century.It was played by many people in the countries of the Britain Empire, and was quite popular.(1)________ It is not part of Olympics.The countries that have professional rugby teams have a competition now and then, to decide the better team.But they do not have regular World Cup competition such as there is for soccer.

  (2)________ The shape of the ball is oval(椭圆的)rather than round as it is in soccer.Rugby is also different from soccer in that it is played by a larger number of players.An amateur(业余)rugby team has 15 players, while a professional team has 13.

  A rugby game usually lasts for 80 minutes.(3)________ Rugby teams also have substitutes(替补队员)just as soccer team do.This helps all the players by giving them a chance to rest during the games.Rugby is somewhat more complex(复杂)than soccer.It may be easy to follow when you are watching it, but it is hard to explain.

  The scoring of a rugby game, for example, is complicated(复杂).(4)________ The first way to score points in rugby is through “tries”.A “try” happens when a member of the team touches the ball down over the opponents’(对方)goal line.A try is worth three points.After a try has been scored, a goal may be attempted.(5)________ The goal is worth two points.A third way of scoring points in rugby is by scoring a field goal.A team can get three points by kicking the ball through the goal from anywhere on the field.Each team in rugby game tries to score more points than the other team.Each team tries to keep the other team from scoring.The team with more points at the end of the game wins.

A.The playing time is divided equally into two halves.

B.Now it is not so popular.

C.Football is a sport that more people watch than play.

D.There are three ways to score points in rugby.

E.This goal is scored by kicking the ball over the goal line from a particular place on the field.

F.The major difference between rugby and soccer is that rugby players may use their hands to move the ball.

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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。
It’s normal to wake briefly during the night.  【小题1】 But if you’re waking up during the night and having trouble falling back asleep, the following tips may help.
Stay out of your head. The key to getting back to sleep is continuing to prepare your body for sleep, so remain in bed in a relaxed position. Hard as it may be, try not to stress over the fact that you’re awake , because that very stress and anxiety encourage your body to stay awake. 【小题2】
 【小题3】 If you are finding it hard to fall back asleep, try a relaxation technique such as visualization, deep breathing, or meditation, which can be done without even getting out of bed. Remind yourself that although they’re not a replacement for sleep, rest and relaxation still help refresh your body.
Do a quiet, non-stimulating activity. If you’ve been awake for more than 15 minutes, try getting out of bed and doing a quiet, non-stimulating activity, such as reading a book. Keep the lights dim so as not to think that it’s time to wake up.  【小题4】 A light snack might help relax you, but be careful not to eat so much that your body begins to expect a meal at that time of the day.
 【小题5】 If you wake during the night feeling anxious about something, make a brief note of it on paper and postpone worrying about it until the next day when you are fresh and it will be easier to resolve.

A.Make relaxation your goal, not sleep.
B.Put off worries and troubles.
C.Use a flashlight to go to the bathroom at night.
D.In fact, a good sleeper won’t even remember it .
E. Also avoid screens of any kind —computers, TVs, cell phones, iPads.
F. You’ll be much more productive and creative after a good night’s rest.
G. A good way to stay out of your head is to focus on the feeling in your body.

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