Ⅰ. 阅读判断
根据短文内容判断正误(正确“T”，错误“F”)。
Birds live in trees. Squirrels(松鼠) live in trees. But do you know that some frogs live in trees too? Tree frogs are hard to find. They can change colours. On green leaves, they stay green. On a branch, they keep brown. Some tree frogs can change from green to gold or blue.
Tree frogs have legs and wide feet. They have sticky pads(爪垫) at the ends of their toes. These sticky pads keep tree frogs from falling off trees.
Tree frogs have different colours and markings on the skin(皮肤). Their eyes are different too. Some have green eyes, and some have grey ones. Some frogs' eyes are gold, and some are bright red.
The sounds they make in spring and summer are different too. One frog makes a sound like a dog barking. Another frog makes a loud noise like a snore(打呼噜声). There is even a frog that whistles(吹口哨).
()1. Tree frogs are hard to find because they can change colours.
()2. Sticky pads can make frogs fall off trees.
()3. Different frogs make different sounds in spring and summer.
()4. Both birds and squirrels live in trees.
()5. The main idea of the passage is that people all like tree frogs.

1. T
2. F
3. T
4. T
5. F

1. 根据短文第一段“Tree frogs are hard to find. They can change colours.”可知树蛙很难被发现是因为它们可以变色，该题正确。
2. 从文中“They have sticky pads at the ends of their toes. These sticky pads keep tree frogs from falling off trees.”可知爪垫是让树蛙不从树上掉下来，而不是使树蛙从树上掉下来，该题错误。
3. 由“The sounds they make in spring and summer are different too.”可知不同的树蛙在春夏发出不同的声音，该题正确。
4. 文中开头提到“Birds live in trees. Squirrels live in trees.”，该题正确。
5. 文章主要介绍了树蛙的特点，如变色、爪垫、颜色和叫声等，而不是人们都喜欢树蛙，该题错误。

Ⅱ. 阅读理解
The polar bear is a very big white bear. We call it the polar bear because it lives inside the Arctic Circle near the North Pole. There are no polar bears at the South Pole.
The polar bear lives in the snow and ice. You cannot see the polar bear in the snow because its coat is white. It has a very warm coat because the weather is cold in the Arctic Circle.
The polar bear can stand up on its back legs because it has very wide feet. It can use its front legs like arms. The polar bear can swim well. It can swim very far in the water. It catches fish and sea animals for food. It goes into the sea when it is afraid.
Some people want to kill the polar bear for its beautiful white coat. The governments of Canada, the USA and Russia say that no one can kill polar bears now. They do not want all of these beautiful animals to die.
()1. Where does the polar bear live?
A. At the South Pole.
B. Near the North Pole.
C. In warm countries.
D. Everywhere.
()2. Which of the following is true?
A. The polar bear is small and white.
B. The polar bear can't swim.
C. The polar bear can't stand up on its back legs.
D. The polar bear goes into the sea when it's afraid.
()3. How does the polar bear get food?
A. It catches land animals.
B. It catches fish and sea animals.
C. It looks for trees.
D. It looks for fruit and vegetables.

1.B 2.D 3.B

1. 根据第一段“We call it the polar bear because it lives inside the Arctic Circle near the North Pole.”可知北极熊生活在北极附近。2. 根据第三段“It goes into the sea when it is afraid.”可知D选项正确；A选项“small”错误，第一段提到“very big”；B选项“can't swim”错误，第三段说“can swim well”；C选项“can't stand up”错误，第三段说“can stand up on its back legs”。3. 根据第三段“It catches fish and sea animals for food.”可知北极熊以鱼和海洋动物为食。