A disease called “Panama” is threatening supplies of the world's most popular fruit—banana.Two years ago,the United Nations warned that the "Panama disease" could destroy "much of the world's banana crop."Since then,things have not gotten better.A new outbreak was discovered last year in Australia.The disease started in Asia in the 1990s, and later spread to Africa and the Middle East.
World health officials worry the disease could travel to Latin America,one of the top banana producers in the world.All this is a big concern because bananas are an important source of income and nutrients for millions of people.They are grown in 135 tropical nations.The United Nations lists bananas as one of the most important foods, along with rice,wheat and corn.
Randy Ploetz is a professor at the Tropical Research & Educational Center at the University of Florida.Many consider him as America's top banana expert.As he explained,Panama disease affects the Cavendish banana.The Cavendish is one of more than 500 kinds of bananas.But it is the most popular.
“The industry is waking up to the problem,”Ploetz said.“They are pretty scared.”He was speaking Thursday by telephone from Miami,Florida,where he is among 1,000 people attending the International Banana Congress.The meeting was supposed to take place in Costa Rica,but was moved at the last minute.There were concerns banana growers could spread Panama disease from dirt collected on their shoes,Ploetz said.
Ploetz said reports that Cavendish banana production could end are not correct.But if the disease spreads to Latin America,it could hurt the world’s economy along with food supplies for millions of people.Still,he said there is reason for hope.Scientists in Australia are working on a genetically engineered banana that might not be at risk of getting Panama disease.
1.What makes World health officials worried about the disease?
A. Making the banana disappear.
B. Spreading to another continent.
C. No effective medicine to kill it.
D. No ways to stop it spreading.
2.What do you know about professor Randy Ploetz?
A. He is the best scientist studying banana in America.
B. He helps farmers grow various bananas.
C. He found more than 500 kinds of bananas.
D. He will find a better way to protect bananas.
3.What’s the possible measure to defeat the disease?
A. Using clone technology to kill the disease.
B. Inventing new medicine to prevent the disease.
C. Looking for effective ways to make banana healthy.
D. Developing a new type of banana free of the disease.
4.What can be a suitable title for the text?
A. Scientists Try to Protect Banana Trees.
B. Disease Spreads Quickly to Latin America.
C. Disease Threatens World Banana Supplies.
D. Banana Plays an Important Role in Economy.
高一英语阅读理解中等难度题
A disease called “Panama” is threatening supplies of the world's most popular fruit—banana.Two years ago,the United Nations warned that the "Panama disease" could destroy "much of the world's banana crop."Since then,things have not gotten better.A new outbreak was discovered last year in Australia.The disease started in Asia in the 1990s, and later spread to Africa and the Middle East.
World health officials worry the disease could travel to Latin America,one of the top banana producers in the world.All this is a big concern because bananas are an important source of income and nutrients for millions of people.They are grown in 135 tropical nations.The United Nations lists bananas as one of the most important foods, along with rice,wheat and corn.
Randy Ploetz is a professor at the Tropical Research & Educational Center at the University of Florida.Many consider him as America's top banana expert.As he explained,Panama disease affects the Cavendish banana.The Cavendish is one of more than 500 kinds of bananas.But it is the most popular.
“The industry is waking up to the problem,”Ploetz said.“They are pretty scared.”He was speaking Thursday by telephone from Miami,Florida,where he is among 1,000 people attending the International Banana Congress.The meeting was supposed to take place in Costa Rica,but was moved at the last minute.There were concerns banana growers could spread Panama disease from dirt collected on their shoes,Ploetz said.
Ploetz said reports that Cavendish banana production could end are not correct.But if the disease spreads to Latin America,it could hurt the world’s economy along with food supplies for millions of people.Still,he said there is reason for hope.Scientists in Australia are working on a genetically engineered banana that might not be at risk of getting Panama disease.
1.What makes World health officials worried about the disease?
A. Making the banana disappear.
B. Spreading to another continent.
C. No effective medicine to kill it.
D. No ways to stop it spreading.
2.What do you know about professor Randy Ploetz?
A. He is the best scientist studying banana in America.
B. He helps farmers grow various bananas.
C. He found more than 500 kinds of bananas.
D. He will find a better way to protect bananas.
3.What’s the possible measure to defeat the disease?
A. Using clone technology to kill the disease.
B. Inventing new medicine to prevent the disease.
C. Looking for effective ways to make banana healthy.
D. Developing a new type of banana free of the disease.
4.What can be a suitable title for the text?
A. Scientists Try to Protect Banana Trees.
B. Disease Spreads Quickly to Latin America.
C. Disease Threatens World Banana Supplies.
D. Banana Plays an Important Role in Economy.
高一英语阅读理解中等难度题查看答案及解析
The Colorado River is the lifeblood of the American Southwest. It supplies water to more than 36 million people, has changed the desert into farmland, and allows cities like Los Angeles, Phoenix, and Las Vegas to develop. But satisfying the region’s need for water has come at a price.
The river once traveled all the way from Colorado’s Rocky Mountains to the Gulf of California. Now, dams (水坝) control the river’s water for human use. As a result, the river no longer reaches the ocean. Without water, the delta (三角洲) at the river’s mouth has become dry and poor.
To bring the delta back to life, engineers recently opened the Morelos Dam near the US-Mexico border to free a temporary burst of water. This pulse flow allowed the Colorad River to reach the sea for the first time in 16 years, helping the river’s delta come alive.
The dams built by the US government form a system of man-made lakes. These lakes can store four times the river’s yearly flow. “The lakes are like the river basin’s bank accounts,” says Taylor Hawes. “They provide a place to save up water for not-so-rainy days — like right now”.
In wetter times, on and off since the 1960s, the Colorado managed to complete its journey to the sea. During those rare times, spring floods temporarily brought life back to the delta. Seeing the difference a little water could make gave scientists the idea for this year’s pulse flow.
“Just add water and you get an amazing recovery,” says Eloise Kendy. “The project serves as a model of how to manage rivers sustainably (可持续) for both people and nature. A lot of rivers in the West have problems. We used them to make the deserts bloom and build cities. We didn’t think about the environment. But it’s possible to restore them. If we can do it in the Colorado River Delta, we can do it anywhere.”
1.What can we lean from the first two paragraphs?
A.The Gulf of California is flooding.
B.The Colorado River’s delta is dying
C.The American southwest is becoming poor.
D.The water in the Colorado River is running out.
2.Taylor mentioned the bank accounts to show that ________.
A.lakes have stored much of the river water
B.many banks provided money to build dams
C.the money made from the lakes are kept in banks
D.people can borrow money from banks to buy lake water
3.What does Kendy want to express in the last paragraph?
A.Restoring deserts is sustainable for nature.
B.Many cities are built on deserts in the West.
C.Rivers in the West have been polluted seriously.
D.Environmental protection must go with development.
4.What is the main idea of the passage?
A.An effort to protect the Colorado River from drying.
B.An experiment to make the Colorado River flow freely.
C.A plan to bring the Colorado River’s delta back to life.
D.A way to make full use of the water from the Colorado River.
高一英语阅读理解中等难度题查看答案及解析
All ________is needed is a Supply of oil．
A．the thing B．that C．what D．which
高一英语单项填空中等难度题查看答案及解析
（题文）Niagara Falls is a great tourist ________ drawing millions of visitors from all parts of the world every year.
A. attraction B. scene
C. view D. interest
高一英语单项填空简单题查看答案及解析
It is the prevention of disease______its successful treatment that has led to the rapid increase of the world’s population.
A. rather than B. less than C. in addition to D. in the direction of
高一英语单项填空简单题查看答案及解析
Heart disease is the most common cause of death in the United States. Over a million people each year will have a heart attack and 25% will die before they get to the hospital or in the Emergency Department. _1_ Prevention is the best way so it does not damage your heart and limit your ability to enjoy life. Simple ways might help reduce your risk:
Don’t smoke
This means that you should stop smoking as soon as possible if you already smoke, and if you live with a smoker , you should put limits on the smoker. _2_
Get moving
__3_ Find a form of exercise you enjoy enough to want to do it regularly and stick to it. If you have health issues that limit exercise, see your doctor for suggestions and make sure you begin with a program that will not be too challenging for you to keep with it.
__4__
Make sure you follow a heart prevention diet, even if you don’t have any symptoms (症状) of heart disease. _5_ You should eat a high-fiber, low-fat diet rich in fruits, vegetables and whole grains. Meats should be lean (瘦的)，and fats should be limited to heart healthy fats such as olive oil. Sugars and processed foods should be limited, and fruits and vegetables should make up a large part of your daily meals.
| A．Eat healthy foods |
| B．Manage your weight |
| C．A heart attack is a very frightening event. |
| D．The key is to prevent the disease before it starts |
E. It’s best if you can get in 30 minutes a day of exercise.
F. If you feel any of these heart attack symptoms, do not ignore.
G. If you haven’t started smoking, be sure never to start this habit.
高一英语信息匹配中等难度题查看答案及解析
Heart disease is the most common cause of death in the United States. Over a million people each year will have a heart attack and 25% will die before they get to the hospital or in the Emergency Department.1.Prevention is the best way so it does not damage your heart and limit your ability to enjoy life. Simple ways might help reduce your risk:
Don’t smoke
This means that you should stop smoking as soon as possible if you already smoke, and if you live with a smoker , you should put limits on the smoker.2.
Get moving
3.Find a form of exercise you enjoy enough to want to do it regularly and stick to it. If you have health issues that limit exercise, see your doctor for suggestions and make sure you begin with a program that will not be too challenging for you to keep with it.
4.
Make sure you follow a heart prevention diet, even if you don’t have any symptoms (症状) of heart disease.5.You should eat a high-fiber, low-fat diet rich in fruits, vegetables and whole grains. Meats should be lean (瘦的)，and fats should be limited to heart healthy fats such as olive oil. Sugars and processed foods should be limited, and fruits and vegetables should make up a large part of your daily meals.
A. Eat healthy foods
B. Manage your weight
C. A heart attack is a very frightening event.
D. The key is to prevent the disease before it starts
E. It’s best if you can get in 30 minutes a day of exercise.
F. If you feel any of these heart attack symptoms, do not ignore.
G. If you haven’t started smoking, be sure never to start this habit.
高一英语七选五困难题查看答案及解析
The following is the story of a SARS patient named Wang and his fight with the disease.
I woke up around 6 : 30 this morning, on my ninth day in hospital since I caught SARS. Glancing over at my roommate, Xiao Huang, a 27-year-old employee of a Beijing software company, I saw he was also awake.
After a light breakfast, a nurse came in and took my temperature. It was 36.6 centigrade. We’re at Changxindian Hospital in southwestern Beijing, a newly named SARS patient hospital. It seems I am now recovering as my fever has gone down in recent days. When I first got the disease , I spent four days with a temperature above 39.5 centigrade—at one point it reached 40. 1 centigrade.
At 8 : 30 am, a nurse took a blood sample and X-ray of my chest. Then my daily treatment began with the help of the experts from Guangdong and WHO.
Before the first bottle finished, my wife rang me. I talked with her on my mobile phone. It has become a major connection with the outside world. Several friends also called me in the morning.
I am feeling great these days—no fever, no headache and no pain in the chest, which are all symptoms(症状)of SARS. My slight cough is gone since I began taking a new round of medicines yesterday. The doctor told me that I may be set free from hospital in two weeks and a half.
1.Where is the hospital the writer stays at?
A. In the south of Beijing.
B. To the east of Beijing.
C. In the southwest of Changxindian.
D. In the southwest of Beijing.
2.How long does the writer have to stay altogether in the hospital before he is sent home?
A. Seventeen days.
B. Nine days
C. More than thirty days.
D. More than twenty-five days.
3.According to the passage, which of the following statements is true?
A. When he first got the disease, his temperature once reached1 41.5 centigrade.
B. His medical treatment came after he had breakfast.
C. He lived in a room of the hospital alone.
D. He talked with his wife by fax.
4.According to the passage, which of the following is NOT the symptoms of SARS?
A. Having a high fever.
B. Having a headache.
C. Feeling pain in the chest.
D. Feeling cold all day.
高一英语阅读理解中等难度题查看答案及解析
Heart disease is the leading cause of death in the United States, _____ a research report.
A.according to B.because of
C.thanks to D.instead of
高一英语单项填空中等难度题查看答案及解析
Smoking is one of the ______ of heart disease and it kills lots of people every year.
A. causes B. reasons C. excuses D. results
高一英语单项填空简单题查看答案及解析