Which of the following animals lives only in water?
九年级英语单项填空中等难度题
Which of the following animals lives only in water?
九年级英语单项填空中等难度题查看答案及解析
Which of the following animals lives only on grass?
A. B. C. D.
九年级英语单项填空中等难度题查看答案及解析
1.Which of the following needn’t be included in this experiment(实验)?
A.String. B.Water. C.Glass. D.Pipe.
2.According to the instruction, which of the following order is correct?
① run the string from the pitcher to the glass
② soak the string in water for a few minutes
③ hold the pitcher slightly higher
④ tilt the pitcher until water pours out
⑤ fill the pitcher with water
⑥ tie the string to the handle of the pitcher
A.②⑥③⑤④① B.②⑥⑤③①④ C.①⑥⑤③②④ D.①⑥③⑤②④
3.When water runs along the string, _________.
A.there is surface tension to make sure water can roll down
B.the string can be winding(弯曲的) or loose
C.the tiny water can’t form a sort of skin
D.the pitcher and the glass must be put at the same height
九年级英语阅读单选中等难度题查看答案及解析
Now the senior people in our country live a happy life.Which of the following is correct for the underlined word in the sentence?
A. [læv] B. [liv] C. [li:v] D. [laiv]
九年级英语单项填空简单题查看答案及解析
The panda is a kind of animal _____ can be found only in China.
A. who B. whose
C. which D. where
九年级英语单项填空中等难度题查看答案及解析
The panda is a kind of animal _____ can be found only in China.
A. who B. whose C. which D. where
九年级英语单项填空简单题查看答案及解析
The panda is a kind of animal _____ can be found only in China.
A. who B. whose C. which D. where
九年级英语单项填空简单题查看答案及解析
A fish that lives in America can live out of water for months at a time, similar to how animals got used to land millions of years ago, a new study shows.
The Mangrove Rivulets, a kind of little fish, lives in small pools of water. When their living place dries up, they live on the land, said Scott Taylor, a researcher in Florida.
The fish can grow as large as three inches. They group together and breathe air through their skin before they can find water again.
The new scientific discovery came during a trip.
“We were travelling for fun. and one day I kicked over a log (圆木) and the fish came out.” Taylor told reporters by telephone. He said he would make his study on the fish known to the public in an American magazine early next year.
In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.
Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish (肺鱼) found in Australia, Africa and South America can live out of water, but only in a not active (活波的) way. But no other known fish can be out of water as long as the Mangrove Rivulets and keep active, according to Patricia Wright, a biologist at a Canadian University.
More studies of the fish may tell how animals changed over time.
“These animals live in conditions similar to those millions of years ago, when animals began to move from water onto land.” Wright said.
1.. The Mangrove Rivulets is a type of fish that_________.
A. lives on land in Africa
B. can stay alive for months out of water
C. prefers living in dry places
D. is the longest living fish on earth
2.. Who will write a report on Mangrove Rivulets?
A. Scott Taylor. B. Some reporters. C. Patricia Wright. D. Scientists from Europe.
3.. According to the passage, lungfish can___________.
A. breathe through its skin B. be found in Asia
C. keep alive out of water D. keep alive and walk on land
4.. Which one of the sentences below is not true?
A. The Mangrove Rivulets fish can live out of water as long as other animals if it has something to eat.
B. Millions of years ago, animals began to live onto land from water.
C. Lungfish found in Australia, Africa and South America can live out of water in a not active way.
D. The walking catfish found in Southeast Asia can stay on land for hours at a time.
5.. What can we say about the discovery of Mangrove Rivulets?
A. ft was made by Scott Taylor, a researcher in New York.
B. It was helped by an American magazine.
C. It was helped by Patricia Wright.
D. It was made by a researcher while travelling.
九年级英语阅读理解困难题查看答案及解析
Frogs are animals that can live both in water and on land. There are more than 5,000 kinds of frogs on the earth. The earliest known frogs lived about 190 million years ago and the frogs today still look the same. Here are some fun things that you might not know about frogs. Enjoy!
The Biggest and the Smallest Frogs
Some frogs can be very big. The biggest kind of frog is the Goliath Frog in West Africa. Its body can be nearly 30cm long, about the size of a large cat. The Gold Frog and the Poison Frog are the smallest frogs in the world. They are less than 1cm long. Though the Poison Frog is very small, it is not weak at all. It is dangerous. Any animal that eats it will die very soon.
The Best Jumpers
Frogs are very good at jumping. They developed jumping legs so that they would not be eaten by other large animals. Using their big strong legs, more frogs can jump over 20 times their own length. The Australian Rocket Frog can even jump over 2m, which is 50 times its body length (5.5 cm). That might be the reason why frogs are called the best jumpers on the earth.
The Cryogenic Animal
Some frogs like the Common Wood Frog have a special ability to live in very cold places. When the temperature goes down, they become ice frogs. 2/3of their body water freezes. Their hearts stop, and their breathing stops too. You may think they are dead, but in fact they are not. Maybe we humans can learn the way that the frogs do for medical purpose.
1.The earliest frogs lived about ________ million years ago.
A.20
B.30
C.50
D.190
2.________ can jump over 2m.
A.The Goliath Frog
B.The Common Wood Frog
C.The Poison Frog
D.The Australian Rocket Frog
3.What will happen to a Common Wood Frog at very low temperature?
A.It will die very soon.
B.It will be an ice frog.
C.It will become dangerous.
D.It will become very small.
九年级英语阅读理解中等难度题查看答案及解析
World Water Day is on March 22 every year. Which of the following is the symbol of it?
九年级英语单项填空简单题查看答案及解析