题目内容
Almost all animals need to sleep to stay healthy. But sleeping can also be dangerous because other animals may hurt those who are sleeping. This leads to many different ways of sleeping that help them stay safe. Some of these ways may surprise you!
Almost all bats sleep upside down. They hang from a branch of a tree or the ceiling of a cave. Up high, bats are safe from most other animals. If they are in danger, they just fly away.
A dolphin sleeps with just half its brain at a time. It must stay awake to breathe and to watch for danger. Dolphin mothers and babies can go without sleep for as long as two months to stay safe.
Some ducks sleep with just half their brains, too. These ducks often sleep in a line. The ducks at both ends help to keep the group safe. They keep one eye open to watch for danger. The ducks in the middle sleep deeply with both eyes closed.
Seals breathe air, but that doesn’t stop some of them from sleeping underwater. They hold their breath and dive deep to sleep for up to twenty minutes at a time. Sleeping deep underwater helps these seals stay safe from animals that hunt them near the surface.
Horses often sleep standing up. Their legs lock in place so they don’t fall over. If a horse is lying down, it needs a long time to get up. A horse can run from danger more quickly if it is already standing.
A flamingo can sleep while standing on one leg. The standing leg locks so it stays straight. The other leg remains close to the flamingo’s body. Its head rests on its back. A flamingo lives (and sleeps) near many other birds to stay safe.
Some seabirds can sleep while they fly. These large birds spend most of their lives over the ocean. They are in danger on the water, but they are safe in the air. They fly for many hours without flapping（拍打）their wings. Sometimes they sleep while they are flying.
Would you like to sleep how they sleep?
1.The animals that sleep with half their brains are _______.
A. ducks and seals B. dolphins and ducks C. bats and dolphins D. flamingos and seabirds
2.Horses often stand up when they sleep because _______.
A. they can run from danger quickly B. they are afraid of falling over
C. this helps them to sleep deeply D. it takes them a long time to go to sleep
3. The underlined word “hunt” in Paragraph 5 probably means _______.
A. offer to help B. come to teach C. refuse to protect D. want to kill
4.Which of the following can be the best title for the passage?
A. How animals sleep B. Sleep to stay healthy C. Sleep as animals do D. What sleeping animals are like
天天向上一本好卷系列答案
小学生10分钟应用题系列答案
阅读下列短文，在空白处（71-75）填入与短文内容相符的信息，完成阅读摘记。
English is the first language of several countries. However, it has many differences. British, American, and South African English are all spoken differently. In many English language courses, the British and American differences are taught. One is not more correct than the other, but there are important differences between the two.
Probably the biggest difference between American and British English is the vocabulary. Different words and expressions are used to talk about the same thing. For example, in the United States, people throw their garbage into the trash can. In England, people throw their rubbish into the dustbin. In Britain, people take a lift to the fifth floor. In America, people take an elevator.
American and British grammar can be also different. For example, speakers of British English will ask “What did you do at the weekend?”, but Americans usually say “on the weekend.” In the United States people usually say “I’ve gotten a new car.”, but in the UK they will say “I’ve just got a new car.”
The pronunciation in American and British English is also different, even when the spelling is the same. The word “tomato”—pronounced “to-mah-to” in British English—is a classic example of this.
Vocabulary, grammar, and pronunciation are three ways English is different in different parts of the world. Learning all these is not easy, so English learners should just know that they are always there.
Differences | ||
Br E | Am E | |
Vocabulary | ? Throw the rubbish into the dustbin ? Take a 72 to the fifth floor | ? Throw the garbage into the 71 ? Take the elevator |
Grammar | ? At the weekend ? I’ve just 74 a new car. | ? 73 the weekend ? I’ve gotten a new car. |
75 | Tomato—pronounced “to-mah-to” | |
1.________ 2._______3._______ 4._______ 5.________
