詩句“不敢高聲語，恐驚天上人”中的“高”是指聲音的__________大；發(fā)出較強(qiáng)聲音的喇叭能使它前面的燭焰“跳舞”，說明聲波具有___________；聽不同樂器彈奏同一首歌曲時(shí)能分辨出所用樂器，是利用了聲音的_________不同．

一部科幻電影中有這樣的場面：一艘飛船在太空中遇險(xiǎn)，另一艘飛船前去營救的途中，突然聽到了遇險(xiǎn)飛船的巨大爆炸聲，然后看到了爆炸的火光。請你給導(dǎo)演指出這個(gè)場景中的科學(xué)性的錯(cuò)誤：（1）                                  ；（2）                                          。

小凡同學(xué)在4塊相同的玻璃板上各滴一滴質(zhì)量相同的水，進(jìn)行如下圖所示的實(shí)驗(yàn)探究，得出水蒸發(fā)快慢與水的溫度、水的表面積和水面上方空氣流動(dòng)快慢有關(guān)．
（1）通過Ａ、Ｂ兩圖的對(duì)比，可以得出水蒸發(fā)快慢與水的              有關(guān)．
（2）通過      、        兩圖的對(duì)比，可以得出水蒸發(fā)快慢與水的溫度有關(guān)．
（3）我們知道液體蒸發(fā)時(shí)要吸熱,請你舉一個(gè)應(yīng)用蒸發(fā)吸熱的事例:                   .

揚(yáng)聲器播放音樂時(shí)，放在紙盆上的小紙片會(huì)不斷地跳動(dòng)。這個(gè)實(shí)驗(yàn)是用來探究（  ）

A．聲音能否在真空中傳播	B．聲音產(chǎn)生的原因
C．音調(diào)是否與頻率有關(guān)	D．樂音與噪聲的區(qū)別

CCTV青年歌手大獎(jiǎng)賽中有道辨聽題：“先聽音樂，后判斷該音樂是用哪種樂器演奏的”。歌手能判斷出用哪種樂器演奏是依據(jù)聲音的（   ）

A．音調(diào)

B．音色

C．響度

D．頻率

南音以其獨(dú)特的民族風(fēng)格和濃郁的鄉(xiāng)土氣息，在閩南民間廣泛流傳。它的主奏樂器琵琶彈奏時(shí)那纏綿深沉的琴聲是靠琴弦         產(chǎn)生的；琴聲是通過         傳到人耳的。

在元旦文藝匯演上，小明彈奏電吉它時(shí)不斷用手指去控制琴弦長度，這樣做的目的是為了改變聲音的        ；琴弦越短時(shí)振動(dòng)越快，         越高。

Mr. Smith was an old miser (守財(cái)奴). He had a lot of   16  , but he never bought anything     17 . He and his wife lived in an old house outside the town. He often went to the shop  18  in order to save some money. In the   19 , as soon as it was dark in the room, he   20 . He had no TV but bought a cheap radio and often 21 the advertisements.
The old man had no   22 , his wife was often ill. He wouldn’t send her to the hospital. He thought he would   23  much to the doctors if they looked her over. He bought a few medical books and bought some  24  for her.
One night, Mrs. Smith felt unwell. She had got a bad headache. She asked her husband to      25 a doctor, but he didn’t agree. He brought out some pills and made her  26  them. But it was no use.
The old woman began to   27  at home. Mr. Smith locked the door and went in another room and     28  there. The next morning, when he woke up, he came into her   29 to see if she was all right. But he found the poor woman had died. He hurried to the telephone, but   30  his mind at once. He ran out and shouted to the servant (傭人), “Don’t cook breakfast for Mrs. Smith this morning, Linda!”

【小題1】

A．books B．shoes C．clothes D．money

【小題2】

A．bad B．good C．expensive D．cheap

【小題3】

A．on foot B．by car C．by taxi D．by motorbike

【小題4】

A．day B．a(chǎn)fternoon C．midnight D．night

【小題5】

A．went to dance B．went to the cinema C．read newspaper D．went to bed

【小題6】

A．listened to B．watched C．mended D．looked at

【小題7】

A．brothers B．sisters C．uncles D．children

【小題8】

A．pass B．tell C．pay D．sell

【小題9】

A．food B．medicine C．fruit D．vegetables

【小題10】

A．look for B．take care of C．catch up with D．send for

【小題11】

A．take B．drink C．to take D．to drink

【小題12】

A．laugh B．sing C．cry D．dance

【小題13】

A．slept B．played C．worked D．drank

【小題14】

A．workplace B．bedroom C．library D．office

【小題15】

A．kept B．finished C．changed D．forgot

After our hospital visit, my husband and I needed cheering up, so we thought we would treat ourselves to a big breakfast at our favorite restaurant. While we were waiting for our meals, we decided to use all our small change and make our wallets light, so we counted it out as we waited.
I vaguely(含糊地) remember seeing a man sitting nearby. When our meals arrived, we found a note. It read,” Your breakfast has been paid for. Hope you have a lovely day.”
It was a wonderful surprise as nothing like that had ever happened to us. He must have thought we could hardly pay the bill. We looked around to thank him, but he had left. As retirees(退休者)，we were grateful for the help like this, but it was the kindness of a total stranger that meant so much more to us.
【小題1】The old couple went to restaurant for a big breakfast in order to _______.

A．become happier	B．become healthier
C．become lighter	D．become younger

【小題2】What have you learnt from the story?

A．The old couple couldn’t afford the meal.

B．The old couple paid the meal by small change.

C．The old couple had a free meal in the end

D．The old couple bought the man a big breakfast

【小題3】Clearly, the man sitting near the couple was _______.

A．poor

B．rich

C．helpful

D．grateful

Mitzi Lost Wednesday evening French poodle(卷毛狗) called Mitzi Brown, 5 year old, good reward Phone Barbara 555-4140 anytime	Bluey Lost blue\ white Persian male cat 12months old, friendly nature Any info about Bluey Large reward Tom 555-2732 evenings
Pet-Cats Burmese kittens 11 weeks old 2 female 4 male 1 Red Others various colors Gentle and registered(注冊)＄250 Sandy 555-0001 mornings	Pet-Dogs Small dogs\short legs \long body 3 red 2 male 1 female 5 months old, registered Sale ＄280 Phone Carl 555-9019 afternoon

【小題1】If you want to buy a little dog, you can call _______.

A．555-9019

B．555-0001

C．555-4140

D．555-2732

【小題2】If you tell the owner where Bluey is, you will be give _______.

A．a(chǎn) gold medal	B．a(chǎn) large pet
C．a(chǎn) great prize	D．a(chǎn) lot of money

【小題3】Who is available to answer the call 24 hours a day?
A. Barbara                           B. Tom
B. Carl                              D. Sandy
【小題4】The above four notices are all about _______.

A．dogs

B．cats

C．pets

D．selling pets