Elephants are the largest land animals on the earth. They look very _________. They have long noses, large ears and thick legs. There are _________ two types of elephants: the Asian elephant and the African elephant. African elephants live in the rain forests of Central and West Africa. Asian elephants live in Nepal, India and Southeast Asia. African elephants are the _________ of the two types. They grow to between 2.5 and 4 meters tall and _________ 2,268 kg to 6,350 kg. Asian elephants are just a little smaller.

Elephants always live in _________ called herds（群）. All of the elephants in the herd _________ each other. The leader of the herd is an old mother elephant. She is the matriarch（族长）. A herd may have as few as eight or _________ 100 elephants. The other elephants follow the matriarch because she knows how to keep them _________ from the coming danger.

Elephants learn by watching and copying others, and also learn from life. They are smart animals with good _________. In the dry season, a matriarch can remember __________ water was found in the past. The head will follow her there. She can also remember the safest place for baby elephants to cross a fast-moving river. Baby elephants stay with their mothers until they are fully grown at about ten years old.

【推荐2】You see plants every day, but how much do you really know them? BBC documentary series The Green Planet shows the secret lives of _______ as we have never seen before. It _______ on Bilibili on Jan.10th. Thanks to groundbreaking technology, the series let us see plants’ lives from a new side.

With the help of time-lapse photography (延时摄影), lots of plants act differently in detail. For example, plants compete against each other to _______. In tropical forests, they _______ for sunlight. The forest floor is like a battlefield. Some plants try to spread their big leaves to reach _______ while other plants catch the leaves to get a ride. _______ the video is shown in just a few minutes, it took more than a year for the team to shoot (拍摄). To shoot _______ in the wild, the team used a computer-controlled robotic camera to help.

Behind the wonderful _______ of plants is a serious problem. As the series’ presenter David Attenborough said,the relationship between plants and animals and humans is becoming _______ than before. “Is it time for us to look after plants and make a better future together? ” he ________ in a TV show. What do you think?

【推荐3】The family woke up. The noise downstairs sounded like a battle. There were gunshots. A man’s voice screamed in horror and ______. There was snarling, growling (咆哮) and smashing and ______ of furniture and glass. It stopped after less than three minutes. The ______ family stood at the top of the stairs. Scott turned the lights _____. He and his father went down the stairs with guns in their hands.

The guns were not ______. White Fang had done his work. The man’s body lay with an arm ____ the face. Scott moved the arm.

“Jim Hall” said the Judge.

Then they saw White Fang. He was ______ on his side. His eyes were closed, ______ they opened a little when Scott came near. Scott patted him, and he growled a ______ growl.

“He’s _____,” said his master.

“I don’t believe that,” said the Judge, and went to the telephone.

“He has one ______ in ten thousand,” said the surgeon ______ working on White Fang for an hour and a half. “He has a broken back leg and three broken ribs. He’s lost nearly all his ______. And there are three bullet-holes right ______ him. He must be _____ like a sick child. I’ll come back at ten o’clock.

—Taken from White Fang