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Both globes and maps help you find where the places are£®Both show you the size and shape of the places£¬ too£® But maps are flat pictures£® Often£¬ they show just a part of the earth£® Globes are round like balls£® They are models of the earth£® They show the whole planet£® Maps are light and easy to carry£® Globes are heavier and harder to manage£® They usually stay in one place£® Maps and globes both show directions and distance.

Mercury and Venus are closer to the sun than the earth£® However£¬ Mercury is 36 million miles away from the sun£® Venus is 67 million miles away£® It takes Mercury 88 days to orbit£¨ÑعìµÀÔËÐУ©the sun£® Venus spends about 230 days orbiting once around the sun£®Venus is about the same size as the earth£® Mercury is much smaller£® Both Mercury and Venus get very hot£®Scientists do not think there is life on either planet£®

As dolphins and porpoises£¨Êóº£ëࣩare very similar£¬ people often cannot tell the differences between them£® Both dolphins and porpoises are mammals like lions and whales£® They can be seen in the oceans£¬ seas and rivers£®They are so intelligent that they have the ability to think£¬ understand£¬ and learn things quickly and well£® They have large£¬complex brains£®They make sound waves to help them know things well and find their ways in the water£®Dolphins and porpoises feed on fish£® The main difference is that dolphins like talking a lot and love to communicate with people as they are together£®They make whistling sounds through their blowholes to communicate with one another£® Porpoises are usually timid and shy£®

1.How are globes and maps alike£¿¡¡ ¡¡

A. They are flat pictures£®

B. They show the size and shape of the places£®

C. They are models of the earth£®

D. They are light and easy to carry£®

2.Which picture is true according to the passage£¿¡¡ ¡¡

A.  B.

C.  D.

3.What does the underlined word "timid" mean in the passage£¿¡¡ ¡¡

A. µ¨Ð¡µÄ

B. »îÆõÄ

C. ÎÂ˳µÄ

D. Ð׺ݵÄ

4.How are dolphins and porpoises different£¿¡¡ ¡¡

A. Dolphins live in the water£®

B. Porpoises feed on fish£®

C. Dolphins are friendlier£®

D. Porpoises have large brains£®

5.Which of the following is TRUE according to the passage£¿¡¡ ¡¡

A. Globes show just a part of the earth£®

B. Scientists think there is life on Mercury and Venus£®

C. It takes Mercury more time than Venus to orbit once around the sun£®

D. Dolphins and porpoises make sound waves to help find their ways£®

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