一、从方框中选择适当的词并用其正确形式填空。
weigh land butterfly rose wing
1. The plane at the airport ten minutes ago.
2. Among all the flowers in the world, Anna thinks are the most beautiful.
3. An adult panda up to 150 kilograms.
4. The bird got hurt and it couldn't move its .
5. Colourful are flying among the flowers in our garden.

1. landed 2. roses 3. weighs 4. wings 5. butterflies

1. 由“ten minutes ago”可知用一般过去时，“land”的过去式是“landed”。
2. “rose”表示“玫瑰”，根据“are”可知用复数“roses”。
3. 句子陈述事实用一般现在时，主语“An adult panda”是第三人称单数，“weigh”用三单形式“weighs”。
4. “wing”表示“翅膀”，鸟有两只翅膀，用复数“wings”。
5. “butterfly”表示“蝴蝶”，根据“are”可知用复数“butterflies”。

二、用括号内所给词的正确形式填空。
1. This apple is the (big) one in the basket.
2. Which animal do you think is the (cute) in the world?
3. Of all the subjects, science is (interesting) to me.
4. Among all the books on the desk, this one is (good) choice for improving your English.
5. Mount Qomolangma is (high) mountain in the world.

1. biggest
2. cutest
3. the most interesting
4. the best
5. the highest

1. 题目有比较范围“in the basket”，且“the”后常接形容词最高级，所以用“big”的最高级“biggest”。
2. “in the world”表明是众多动物比较，“the”后接形容词最高级，“cute”的最高级是“cutest”。
3. “Of all the subjects”表示在所有科目中比较，“the”后接形容词最高级，“interesting”的最高级是“the most interesting”。
4. “Among all the books”表示在所有书中比较，“the”后接形容词最高级，“good”的最高级是“best”。
5. “in the world”表明是世界范围内比较，“the”后接形容词最高级，“high”的最高级是“highest”。

三、根据要求完成下列各题,每空一词。
1. It is the most interesting plant in the world.(改为同义句)
It is any other plant in the world.
2. Tourists usually come to see the old ginkgo tree in October.(对画线部分提问)
to see the old ginkgo tree?
3. Some elephant birds stand up to three metres tall.(改为一般疑问句并作肯定回答)
— some elephant birds up to three metres tall?
—, .
4. Ginkgo trees first appeared over 200 million years ago.(对画线部分提问)
ginkgo trees first ?
5. I think the lotus flower is the most beautiful flower in the world.(对画线部分提问)
the most beautiful flower in the world?

1. more interesting than
2. When do tourists usually come
3. Do; stand; Yes; they do
4. When did; appear
5. What do you think is

四、阅读短文,用括号内所给词的正确形式填空,将短文内容补充完整。
Here are some interesting facts about amazing animals and plants in the world. Let's have a look.
The African elephant is the 1. ______ (big) land animal in the world. It can weigh up to 12 tons! The cheetah is the 2. ______ (fast) land animal, and it can reach the speed of up to 100 kilometres per hour. The giraffe is the 3. ______ (tall) animal, and some can reach over 5 metres in height. The blue whale is the 4. ______ (heavy) animal on earth, and it's heavier than the elephant. The ant is one of the 5. ______ (small) animals in the world. When it comes to the 6. ______ (clever) animal, it may be the dolphin, because it can solve maths problems. The lion is the 7. ______ (dangerous) animal because it's at the top of the food chain. As for the 8. ______ (friendly) animals, dogs should be on the list, because they are so loyal (忠诚的) to humans.
1.
2.
3.
4.
5.
6.
7.
8.

1. biggest 2. fastest 3. tallest 4. heaviest 5. smallest 6. cleverest 7. most dangerous 8. friendliest

1. 由"in the world"可知用最高级，big的最高级是biggest。
2. 由"land animal"范围可知用最高级，fast的最高级是fastest。
3. 由"animal"范围及常识可知用最高级，tall的最高级是tallest。
4. 由"on earth"可知用最高级，heavy的最高级是heaviest。
5. "one of the+形容词最高级+名词复数"，small的最高级是smallest。
6. 由"animal"范围可知用最高级，clever的最高级是cleverest。
7. 由"because it's at the top of the food chain"可知用最高级，dangerous的最高级是most dangerous。
8. 由"animals"范围可知用最高级，friendly的最高级是friendliest。