问题 填空题

“让我们荡起双浆,小船儿推开波浪,海面倒映着美丽的白塔,四周环绕着绿树红墙,小船轻轻飘荡在水中,迎面吹来了凉爽的风……”。大多数同学是唱着这支优美的歌曲长大的,歌曲中含有许多物理知识。请回答:

(1)风使同学们感到凉爽,主要原因是流动的空气加快了人身上汗液的                

(2)题中倒映的白塔是光                射而形成的_____       像。

(3)小船静止在水面上时,它受到重力和                 力的作用,这两个力是一对________力。

(4)船浆向后划水,船向_____          运动,说明物体间力的作用是_____          的。

答案

(1)蒸发

(2)反,虚

(3)浮,平衡

(4)前,相互

阅读理解

MELBOURNE, Australia – A kangaroo frightened by a man walking his dog attacked the pair, throwing the pet underwater and hitting the owner in the stomach with its back legs. The Australian, Chris Rickard, was in stable condition Monday after the attack, which ended when the 49-year-old struck the kangaroo in the throat.

Rickard said he was walking his blue dog, Rocky, on Sunday morning when they surprised a sleeping kangaroo in Arthur's Creek northeast of Melbourne. The dog chased the animal into a pond, when the kangaroo turned and knocked the pet underwater.

When Rickard tried to pull his dog free, the kangaroo turned on him, attacking with its back legs and tearing a deep cut into his stomach and across his face.

"I thought I might take action to drag the dog out from under his grasp, but I didn't expect him to actually attack me," Rickard, 49, told The Herald Sun newspaper. "It was a shock at the start because it was a kangaroo, about 5 feet high, they don't go around killing people."

"I was stuck having to hold on to the dog with both hands because it was half drowned and I couldn't really see anything because the kangaroo just attacked me.”

He added, "All I could do was just keep pushing for the bank and he was trying to push me under the water, so at that point I struck him in the throat and that made him back off a little bit.

"I don't think I'll ever be able to watch kangaroo programs quite the same as I used to — it might bring back a couple of bad memories.”

Kangaroos rarely attack people but will fight if they feel threatened.

Dogs often chase kangaroos, which have been known to lead the pets into water and defend themselves there.

Rickard said he ended the attack by hitting the kangaroo in the throat adding Rocky was "half-drowned" when he pulled him from the water.

小题1:Rickard and his pet dog were attacked when _________.

A.he was teasing a kangaroo

B.he was walking his dog

C.swimming in the pond

D.dragging his dog out from water小题2:In Australia, kangaroos ________.

A.are only seen in zoos

B.frequently attack people and pets

C.get along rather peacefully with people

D.can be found swimming in ponds小题3:The kangaroo attacked the man and his dog probably because ________.

A.the man struck it in the throat

B.the dog chased it

C.the man wanted to drown it

D.it wanted to drown the dog小题4:As a result of the attack, ________.

A.the dog was drowned dead

B.the kangaroo was killed

C.kangaroos should be under stricter protection

D.Rickard was left a deep impression

单项选择题