Across much of the United States, a warming c...

Across much of the United States, a warming climate has caused the early arrival of spring. This year is no exception. In parts of the Southeast, spring has arrived weeks earlier than usual and may turn out to be the warmest spring on record.

Apple trees blossoms in March and an earlier start to picnic season may seem harmless and even welcome.

1.

Rising temperatures in the springtime lead plants and animals to come alive. Across the United States and worldwide, climate has been changing over these years.2.

Records managed by the USA National Phenology Network and other organizations prove that spring has come earlier the long term.3.

Blueberries in Massachusetts have flowers three to four weeks earlier than in the mid-1800s. And over a recent 12-year period, over half of 48 bird species have been studied.4.

Warmer spring temperatures have also led bees, moths and butterflies to appear earlier than in recent years. Similarly, species like frogs and bears wake up from hibernation earlier in warm springs.5.When species that depend on one another don’t respond to changing conditions at the same time, the number of them will get smaller.

根据短文内容，从短文后选出能填入空白处的最佳选项。

A.It is affecting the arrival and interactions of plants, animals, insects and more.

B.All species don’t respond to warming the same way.

C.It shows that they arrived at their breeding(繁殖）grounds up to nine days earlier than before.

D.For example, the common yellow lily flowers come out nearly a week earlier in the Appalachian Mountain area than it did 100 years ago.

E.But the early arrival of springtime warmth has many downsides for the natural world and for humans.

九年级英语补全短文5选5困难题查看答案及解析

It is reported that some of the main causes(原因) of death in the United States, such as heart disease(疾病) and cancer(癌症) can often be prevented by improving personal health habits. Good habits can help you to stay healthy, such as eating properly, staying active and not smoking.

Eating the right food and the right amount(数量) of food can help you live a longer and healthier life. Getting the nutrients(营养物) that you need and keeping your weight under control can also help. Try to balance the calories[卡(热量)] that you get from food with the calories you use through physical(科学的，自然的) activity.

You should eat different kinds of foods, especially low-fat(低脂的) foods, such as vegetables, fruit, fish and milk.

Weighing too much or too little can lead to health problems. After the age of 45, many people become overweight. You can control your weight by eating healthy foods and being active.

Physical exercise can help to prevent at least six diseases. It will also help you feel better and stay at a healthy weight. So you should spend time on physical exercise. If the weather is bad, try an exercise show on TV, watch on exercise tape(磁带) at home or walk around the shopping center.

根据短文内容，判断句子正误，正确的写“T”，错误的写“F”。

1.If one eats properly, he or she will become healthier.

2.If you are forty years old, it is too late for you to control the amount of food you eat every day.

3.Fish doesn’t belong to low-fat foods.

4.People who are too thin may have health problems.

5.Physical exercise can help to prevent at most six diseases.

九年级英语阅读理解中等难度题查看答案及解析

Car accidents happen everywhere every day and are the main cause of injury in the United States. In order to control the increasing accidents, many states have passed tough laws. Also, car manufacturers(生产商) have been trying to make safer cars to save lives.

However, as there are more and more cars and drivers on the road, these safety measures are not enough to stop the increasing car accidents. The National Highway Traffic Safety Administration(管理部门) reports that a car accident happens every 10 seconds in the United States.

Car accidents may be caused by different reasons. Some accidents are caused by the driver's tiredness and illness or drunk driving. Some may be caused by speeding or running a red light. When this happens, by the time the driver realizes what has happened, it is usually too late. As for ages, young drivers usually don't have enough experience while elderly drivers react slowly. Mechanical defects(机械缺陷) such as a broken brake(刹车) are another cause of car accidents. Poor road and weather conditions can also be causes.

Talking about different causes of car accidents can help us know what precautions(预防措施) to take beforehand. We should tell our friends or family members not to drive in poor health or after drinking wine. We should tell teenage drivers to be careful with road and weather conditions and let elderly friends understand their driving limitation. Besides, we should have our cars checked regularly(规律地). The most important thing for us to remember, however, is that we should always follow the traffic rules.

1.What has the government done to try to control the increasing car accidents?

A. They try to make safer cars.

B. They try to build more roads.

C. They have passed tough traffic laws.

D. They make drivers have their cars examined every month.

2.What does the underlined word “elderly” possibly mean?

A. Middle­aged.　　 B. Young.

C. Rather old.　　 D. Teenage.

3.Which of the following causes is different from the other three?

A. Tiredness.　　 B. Illness.

C. Drunk driving.　　 D. A broken brake.

4.Which has nothing to do with a driver's age?

A. Teenage drivers.

B. Not knowing the traffic rules.

C. Reacting slowly.

D. Driving experience.

5.In order to avoid accidents caused by mechanical defects, we should ________.

A. ．not run a red light

B. drive the car when we are in good health

C. not drive when we are too old

D. have our cars examined regularly

九年级英语阅读单选中等难度题查看答案及解析

Car accidents happen everywhere every day and are the main cause of injury in the United States. In order to control the increasing（增长） accidents, many states have passed tough laws. Also, car manufacturers（制造商） have been trying to make safer cars to save lives.

However, as there are more and more cars and drivers on the road, these safety measure （安全措施）are not enough to stop the increasing car accidents. The National Highway Traffic Safety Administration （管理部门）reports that a car accident happens every 10 seconds in the United States.

Car accidents may be caused by different reasons. Some accidents are caused by driver’s tiredness and illness or drunk driving. Some may be caused by speeding or running a red light. When this happens, by the time the driver realizes what has happened, it is usually too late. As for ages, young drivers usually have enough experience while elderly drivers of react slowly. Mechanical defects （机械毛病）such as a broken brake（刹车） are another cause of car accidents. Poor road and weather conditions can also be a cause.

Talking about different causes of car accidents can help us know what precautions（预防措施） to take beforehand. We should tell our friends or family members not to drive in poor health or after drinking wine. We should tell teenager drivers to be careful with road and weather conditions and let elderly friends understand their driving limitation(局限性)。Besides, we should have our car checked regularly（规律地）. The most important thing for us to remember, however, is that we should always follow the traffic rules.

1.What has the government done to try to control the increasing car accidents?

A．They try to make safer cars.               B．They try to build more roads.

C．They have passed tough traffic laws.         D．They make drivers have their car examined every month.

2.What does the underlined word” elderly” possibly mean?

A．Middle-aged       B．Young            C．Rather old         D．Teenage

3.Which of the following causes is different from the other three?

A．Tiredness         B．Illness            C．Drinking          D．a broken brake

4.Which has nothing to do with a driver’s age?

A．Teenager drivers.                       B．Not knowing the traffic rules

C．Reacting slowly                         D．Driving slowly.

5.In order to avoid accidents caused by mechanical defects, we should ___________.

A．not run a red light.                      B．drive the car when we are in good health

C．not drive when we are too old.             D．have our cars examined regularly.

九年级英语阅读理解中等难度题查看答案及解析

–Do you know　　　　　　 the population of India is?

--No. I only know it’s much　　　　　　 of the United States of America.

A. what; more than that　　 B. what; bigger than that

C. how much; bigger than　　 D. how much; more than that

九年级英语单项填空中等难度题查看答案及解析

The United States is suffering its worst drought (干旱) in almost sixty years. The National Climatic Data Center also says high temperatures in June added to the warmest twelve-month period on record. Record-keeping began in 1895. The drought map showed that conditions improved in the Southeast in June compared to May. But the drought is expected to continue in large parts of the country. Last week, Agriculture Secretary Tom Vilsack met with President Obama. Mr Vilsack says the drought has seriously influenced some crops, such as corn and soybeans (大豆). And the United States is the world's leading producer.

The drought has made prices of com and soybeans increase. Both of them are used in food production and for animal feed. Last week the United Nations Food and Agriculture Organization reported that corn and wheat prices increased by 20% over the past three weeks.

In the United States, farmers may quickly reduce the size of their animals rather than pay higher feed prices to keep them. That increased supply of meat would reduce meat prices in the short term. But those prices could increase in several months.

Mr Vilsack says the effect of the drought is hard to predict(预测). Some areas are getting rain, and drought-resistant (抗旱的) seeds have helped crops grow well in some areas.

1.We can know the drought record of the USA has been kept for ________years of the USA up to now.

A. 97                                                        B. 207

C. 221                                          D. 117

2.Which of the following American presidents met with Tom Vilsack?

A. George Washington.                 B. Abraham lincon.

C. George Bush.                                  D. Barack Obama.

3. If the price of a kilo of corn was 3 dollars last December, how much is a kilo of corn now?

A. 2.4 dollars.                                        B. 3 dollars.

C. 3.6 dollars.                                         D. 3.9 dollars.

4.Why is the meat price lower than before?

A. Because there are more and more animals.

B. Because farmers kill them to save their food.

C. Because people don't like eating meat now.

D. Because the government (政府) asks the meat price lower.

5.What is the best title for the passage?

A. US faces the worst drought in almost sixty years.

B. Take action to help the USA.

C. What does the country do in the drought areas?

D. President Obama meets with Agriculture Secretary.

九年级英语阅读理解困难题查看答案及解析

The United States has always been a country of many cultures. Before Europeans came to North America, many groups of Native Americans lived here. Different Native American groups had different cultures. The first Europeans in the United States were from England and Holland, but immigrants（移民） came from all European countries. Many people also immigrated from Asia and Africa. Sadly, many Africans were brought to the United States to serve the Americans. The life there was hard for them. Many immigrants come from Latin America too. Today, the United States has people from more cultures than ever.

In the 19th century, people thought of the United States as a “melting pot”. People thought that all immigrants should forget their native cultures and languages and become English-speaking Americans. They felt that people should assimilate cultures. However, not everyone wanted to assimilate completely. Many people tried to keep parts of their cultures, such as foods, customs, and languages. However, their children often forgot their parents’ or grandparents’ language. But most Americans, even those whose families have been here for a long time, can tell the countries their relatives came from. And of course, new immigrants take great pride in their cultures and languages.

For all of these reasons, melting pot is no longer a good way to describe the United States. Instead, people now call the United States a “salad bowl”. They say salad bowl because in a salad, you can still see all of the individual parts （lettuce, tomato, and so on）, but all the different parts are mixed together and begin to take on the taste of one another.

1.The first paragraph mainly talks about_____________ .

A.how many immigrants the United States has

B.where the immigrants live in the United States

C.what culture and language the immigrants keep

D.why the United States is a country of many cultures

2.What can we learn from the passage?

A.Before Europeans came to North America, nobody lived there.

B.People spoke of the United States as a “melting pot” in the 19th century.

C.All the Africans were brought to the United States to serve the Americans.

D.The immigrants in the United States are only from England, Holland and Africa.

3.The underlined word “assimilate” in the second paragraph means “　　　　 ”.

A.make something similar B.make something special

C.make something different D.make something interesting

4.Why do people call the United States a “salad bowl” now?

A.Because Americans can make all the cultures into one culture.

B.Because Americans all want to eat salad to be healthy very much.

C.Because Americans want their country to be as “green” as “salad”.

D.Because Americans can make different cultures go together in one country.

九年级英语阅读单选中等难度题查看答案及解析

根据短文后所给的任务，完成小题.

Now the idea of “car sharing” has become popular in Europe and the United States. That’s to say, people share（分享） one car, not each person has one . (65)As we know, most cars are parked in garages for much time. In fact, we drive our own cars as long as one or two hours a day on average. When we don’t use them, We have to pay for parking and other things. (66)We spend too much money on that. If we share a car, we’ll only pay when we use it. (67)Because some people want to save money, they come up with the idea of “car sharing”. Now many people are starting to do car sharing. In Switzerland, almost 40,000 people have joined it. Japan is also trying to make “car sharing” popular around the country. (68)car, is, of, new, sharing, transportation, beginning, a, idea, the, in .（69）This is also very easy for us to travel here and there without buying cars. Do you love to share a car with others?

任务1：请将（65）处的句子翻译成汉语。

1.________

任务2：在下面的空白处填上一个适当的单词，使句意与（66）处相同。

2.That ________ us too much money.

任务3：对（67）处的划线部分提问。

3.?

任务4：请将（68）处的单词组合成一个完整的句子。

4.________

任务5：(69)处有一处错误，请找出错误并改在下面的横线上。（可用文字叙述）

5.________

九年级英语基础写作困难题查看答案及解析

Every year landslides cause 25 to 50 deaths and $2 billion in damage in the United States. And in December, a single event killed more than 2000 people in the Philippines. Sending workers to stabilize mountainsides using steel bars can help a lot, but it introduces new difficulties because of dust and loosen heavy, dangerous debris from the work. “It’s a quite dangerous job,” says Giorgio Pezzuto of D’ Appolonia, working with eight other companies. Now there may be an answer: a three-ton robot called Roboclimber.

“The idea is to operate a machine far away that can do the stabilizing job without a human being near,”says Pezzuto, manager for the project, which is supported by a European organization. Engineers say that the machine will be faster and cheaper than manual labor. The robot, a large radio-controlled four-legged spider, has cost at least $2 million so far. It should be able to climb mountainsides, drill holes and insert steel bars there. Testing should begin in May.

1.The underlined word “event” refers to_____

A. earthquake               B. debris             C. dust        D. landslide

2.The purpose in writing this text is _____

A. to tell people how serious the damage caused by landslides is

B. to tell people that sending workers to stabilize mountainsides is a dangerous job

C. to show people how to use a new robot

D. to introduce a new robot that can be used to stabilize mountainsides

3.What does the robot look like?

A. human being         B. spider            C. steel bar        D. a drill

4.A landslides cause _____________in damage in the United States Every year .

A. 25 to 50 deaths       B. more than 2000 people died

C. $2 billion           D. both A and C

5.The biggest advantage of this product is that____

A. it will be faster and cheaper than manual labor

B. it can climb mountainsides, drill holes and insert steel bars there.

C. it can do the stabilizing job without human beings near

D. it is like a spider

九年级英语阅读理解困难题查看答案及解析

Scientists who study the climate are still arguing about how fast the earth is warming and how much it will warm, but they do agree that the earth is warming and that it will keep warming if we don’t do anything about it.

Scientists agree that the burning of fossil fuels (化石燃料) like oil and coal cause greenhouse gases to escape into the air and that these gases are causing most of the warming. Another cause is deforestation (cutting down trees) . Trees soak up carbon dioxide, one of the greenhouse gases, from the air.

There are already some changes happening because of global warming. Sea level is rising and some animals are already moving to new homes. It’s already too late to stop global warming completely.

If the warming gets worse, as scientists expect, there may be some kinds of plants and animals that is disappearing because they can’t move to new homes. There may be more storms and floods. Sea level may rise so much that people have to move away from the coasts. Some areas may become too dry for farming.

Global warming is a very difficult problem to fix. People are having a hard time agreeing on what to do about it. For example, everyone agrees that wasting energy is a bad thing to do. But some people think that the federal government (联邦政府) should make laws about it, while other people think it should be up to each person or business to decide what to do.

Many states and businesses in the United States are not waiting until the federal government decides what to do. They have already started working on the problem.

1.What are the scientists arguing about in the passage?

A. How fast is the earth warming?                  B. How much will the earth warm?

C. The earth will keep warming if we don’t do anything about it.    D. Both A and B.

2.What does the underlined phrase “soak up” mean?

A．take in            B．grow up           C．take off           D．set up

3.What may be the causes of global warming?

A．The disappearance of plants and animals and the wasting energy.

B．The burning of fossil fuels and storms and floods.

C．The burning of fossil fuels and deforestation.

D．The rising of sea level and deforestation.

4.What is the best title of this passage?

A．The reason for global warming             B．How to stop global warming

C．The changes to the world                 D．The global warming

九年级英语阅读理解困难题查看答案及解析