In many parts of the world, birds start their spring migration (迁徙). Most of them fly north, back to their homes. They cross oceans, mountains and snowy places. They get through bad weather, hunger and changer. No difficulties (困难) stop them.
There are nearly 10, 000 kinds of birds migrate in the world. Migration needs skills (技术). Birds usually fly in a team. They ride the wind and follow patterns (模式). Wild geese often fly in V shape. Strong birds are in the front of the team. They take turns to be the leader. So other wild geese can save some energy (能量).
Their travel is a fight between life and death. Some get hurt and fall behind. Some can succeed.
Amazing migrating birds ·The longest migration bird fly more than 90,000 km between the north pole(北半球) and the south pole  ·The longest non-stop flight fly more than 12,000 km between the US and New Zealand  ·The flightless bird walk or swim about 13,000 km through Antarctica  |
1. How many kinds of birds migrate does the article (文章) mention(提及)? ( )
| A．About 12, 000. | B．About 1, 000. | C．About 10, 000. |
A． | B． | C． |
| A．Bar-tailed godwit | B．Adelie penguin | C．Arctic terns |
( )| A．① | B．② | C．③ |
| A．Birds migration needs skills and they usually fly in a team. |
| B．Adelie penguins can fly about 13, 000km through Antarctica. |
| C．Bar-tailed godwits will stop for a rest and have something to eat during their migration. |
相似题推荐
Thank you for your new umbrella. It’s quite hot in Wuhan. And it rains a lot. I often take it.
I don’t like the food here. It’s very hot(辣) . And it’s expensive. The food in our hometown(家乡) is nice and cheap.
I miss my cat, Mimi. She is cute and friendly. How many baby cats does she have now?
Please write soon.
Love, Wang Li.
1. Wang Li has a ________. ( )| A．a new hat | B．an old umbrella | C．a new umbrella |
| A．hot and sunny | B．cold and rainy | C．hot and rainy |
| A．expensive and hot | B．nice and cheap | C．cheap and hot |
| A．hot food | B．the food in her hometown | C．the food in Wuhan |
A． | B． | C． |
【推荐2】Nocturnal Animals
Animals that are awake at night and sleep during the day are called nocturnal.
Listen to the “Hoot, Hoot” of an owl. Look! There it is! The owl is up in that tree. The owl’s yellow eyes shine in the moonlight. Now look up at the sky. Bats are flying here and there. They wake up at night and look for bugs to eat. Look! A red fox is hiding in the woods. It jumps out of a bush and runs away. Some foxes hunt at night and rest during the day.
Nocturnal animals sleep during the day for various reasons. Most nocturnal animals sleep during the day and are active at night in order to avoid predators (捕食者) that are active during the day. Most nocturnal animals live in the desert (沙漠). They stay out of the hot sun during the day.
1. Bats wake up at night and look for bugs to eat.2. Most nocturnal animals sleep during the day because they are afraid of their predators.
3. Most nocturnal animals live in the sea.
4. Some nocturnal animals sleep during the day because they want to stay out of the moon.
【推荐3】America Black Bears
America black bears are shy animals. They are cowardly by nature, and will usually run away if they see or hear people. Because of this, it can be difficult for scientists to learn about these animals.
In order to study black bears, researchers from New Jersey, USA catch bears and use drugs to help them go to sleep. Researchers then work out the size and the weight of the bear, take blood to test for diseases, remove a tooth and take it to the lab to find out its age. From these studies, researchers want to find out how many bears live in New Jersey, how long they live, and how many babies they produce.
But in Minnesota, USA, researchers study bears that are completely awake. The bears know the researchers' voices and they are not afraid of the research team. With the help of a few grapes to keep the bears busy, researchers can touch them to check their hearts, look at their teeth, and do other jobs. Researchers can also walk or sit with bears for hours and make videos to learn about their everyday lives.
In both places, the main purpose is the same—to make sure there is a healthy population of black bears. But research methods and the kinds of information that researchers are able to collect are quite different.
1. We can learn that North American black bears are______ in Paragraph 1. ( )| A．shy and cowardly animals | B．not found today |
| C．well known to scientists | D．not afraid of people |
| A．拔下 | B．移植 | C．清洗 | D．修补 |
| A．The age. | B．The way of their communication. |
| C．The weight. | D．The numbers of babies they produce. |
| A．can never get close to the bears | B．study the bears while they are asleep |
| C．use grapes to make the bears full | D．learn a lot about the bears' everyday lives |
| A．Research places. | B．The main purpose. |
| C．Research methods. | D．Collected information. |
