阅读理解 Germs(细菌 ) are everywhere. You can"t see them, but they are on your d
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and even in the air !
Like people,germs move around the world. They fly with us on planes. When food, clothes, and
other things travel around the world,germs travel,too. Some germs are safe,but some are dangerous.
Germs cause illnesses like colds and the flu.
Warmer Weather Brings Germs
The world"s weather is changing. Cooler countries are getting warmer, so insects from hot countries
can move there. Some of these insects,like mosquitoes,carry dangerous germs. These germs cause
headaches, fever, and can even kill people.
Under Your Skin
Your skin protects you from germs. It stops some germs,but not all. They can enter your body when
you eat,or when you have a cut. Germs are on your hands, too. They enter your body when you touch
your eyes, nose , or mouth.
Fighting Germs
Your immune system(兔疫系统) protects you, too. When germs get inside your body,your immune
system finds and kills them. Special cells (细胞) move around your body and fight germs. They help you
stay healthy. Other cells make antibodies. Antibodies help your body
find and stop germs.
What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away.
B. carry germs
C. protect germs
D.love germs
B. hot countries
C. everywhere
D. the world
B. There are more germs in cold places.
C. Soap can kill all germs.
D. Germs can get into your body.
B. They find and develop germs.
C. They help protect us from germs.
D. They carry dangerous germs.
B. Weather Is Changing
C. Skin Stops Germs
D. Germs Are Developed
答案
举一反三
Scientists think that a weather pattern( 形式)calledE1 Nino( 厄尔尼诺现象)caused the drought( 干旱)in Australia. E1 Nino causes different weather in different parts of the world. It causes a lot of rain and floods in some places. It causes droughts in other places. Droughts can badly affect people and the land. Ill Nino lasts about a year.
In normal weather conditions, warm winds from South America blow from east to west across the Pacific Ocean. The winds early storms to Australia. These storms bring rain to Australia.
During an El Nino weather pattern the winds change direction. They blow from west to east across the Pacific Ocean. The storms no longer move across Australia. So Australia gets very little rain during El Nino.
The drought began in January , 1982. El Nino often Occurs at this time of year. But that year , El Nino was stronger than usual. There was very little rainfall(降雨量) in eastern Australia. There was also very little water in the rivers. The drought was at its worst in February ,1983 . At that time , the weather was very hot. The forests and fields were very dry. Cotton growers couldn"t plant their cotton. Sheep farmers had no grass for their animals to eat. So many of them died. Because the forests were dry. forest fires started quickly. Some of the fires burned for a month. Many forests were destroyed. Over 2 , 000 people lost their houses in the fires and 75 people died.
The Australian drought ofl982-1983 affected thousands of people and animals. The drought cost the country over $ 3，000，000，000. It was a reminder(提示)to Australians of how the weather could change their lives.
In normal weather conditions, warm winds from South America blow from east to west across the Pacific Ocean. The winds early storms to Australia. These storms bring rain to Australia.
During an El Nino weather pattern the winds change direction. They blow from west to east across the Pacific Ocean. The storms no longer move across Australia. So Australia gets very little rain during El Nino.
The drought began in January , 1982. El Nino often Occurs at this time of year. But that year , El Nino was stronger than usual. There was very little rainfall(降雨量) in eastern Australia. There was also very little water in the rivers. The drought was at its worst in February ,1983 . At that time , the weather was very hot. The forests and fields were very dry. Cotton growers couldn"t plant their cotton. Sheep farmers had no grass for their animals to eat. So many of them died. Because the forests were dry. forest fires started quickly. Some of the fires burned for a month. Many forests were destroyed. Over 2 , 000 people lost their houses in the fires and 75 people died.
The Australian drought ofl982-1983 affected thousands of people and animals. The drought cost the country over $ 3，000，000，000. It was a reminder(提示)to Australians of how the weather could change their lives.
B. a place in Australia
C. a weather pattern
B. 发展
C. 消失
B. Many forests were destroyed in the Australian drought.
C. The Australian government paid over ;3,000,000,000 for this drought.
B. El Nino caused a great drought in Australia.
C. Australia got much rain during El Nino
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| The Japanese Macaca monkey has been studied in the wild for over 50 years. In 1952 ,on one small Japanese island,scientists dropped some 1 dirt for the monkeys. The monkeys liked their taste,but they found the dirt 2 . One clever 18-month-old monkey 3 the problem by washing the sweet potatoes in a nearby river. She taught this to her mother. Her 4 also learned this new way and they taught their mothers too. All the younger monkeys 5 learned to wash the dirty sweet potatoes to make them 6 to eat. But many found it very hard to learn this and still ate the 7 sweet potatoes. Then something 8 .In the autumn of 1958,scientists found that the monkeys on other nearby 9 began washing their sweet potatoes too. Scientists still don"t fully understand how this knowledge was 10 from one island to another. | ||||||||
( )1.A. sweet potatoes | B. green plants B. terrible B. reach B. brothers B. easily B. smaller B. large B. took off B. islands B. dropped | C. hard stones C. difficult C. solve C. sisters C. angrily C. lighter C. new C. took place C. beaches C. passed | D. fresh nuts | |||||
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