题目内容
(七)
Do you know what the s (1) bird in the world is? If your a (2) is “ hummingbird (蜂鸟) ”,you are right. Let's learn more about hummingbirds.
Hummingbirds are really small. Some are less than three inches (英寸) 1 (3) ! There are some different k (4) of hummingbirds such as the Mellisuga helenae,the Archilochus colubris and the Patagona
gigas. A (5) all the hummingbirds,the Patagona gigas is the largest. Its w (6) is only about 20 grams (克).
Hummingbirds are beautiful. They have colorful feathers (羽毛 ) . What's more,their feathers look shiny. Most of the hummingbirds have s (7) beaks (鸟嘴). But some hummingbirds have curly beaks.
Hummingbirds get their name from the s (8) that their wings (翅) make. Hummingbirds flap their wings as many as 80 times per second!This makes a humming sound. A hummingbird's wings are long and
thin. The wings 1 (9) like the oar (船桨) of the boat. The shape of its wings let it f (10) fast.What's more,the hummingbirds can fly in any direction. They can fly backwards. They can e (11) fly upside down!These are things that other birds cannot do.
(七)
1. smallest 2. answer 3. long 4. kinds 5. Among
6. weight 7. straight 8. sound 9. look 10. fly 11. even