【題目】佛山市三水健力寶廠生產(chǎn)的“魔水”馳名中外．“魔水”內(nèi)溶有一定量的二氧化碳氣體．打開瓶塞，“魔水”會自動噴出；喝了“魔水”后常會打嗝，說明氣體在水中的溶解度與壓強、溫度有關(guān)．以下關(guān)于氣體溶解度的說法正確的是（ ）

A．壓強增大，氣體溶解度不變

B．壓強減小，氣體溶解度增大

C．溫度升高，氣體溶解度減小

D．溫度降低，氣體溶解度減小

【題目】The question is not easy. It’s very_______ .

A. difficult B. difficulty

C. relaxing D. not difficult

【題目】“化學來源于生活”，圓夢中學的化學興趣小組做了以下趣味實驗：一定溫度下，

有一杯食鹽水，杯底尚有大量食鹽固體不能溶解，現(xiàn)將新鮮的蘿卜塊放入其中，放置一段時

間。小組同學分別得出了以下說法，其中說法錯誤的是 （ ）

A．原食鹽水一定是飽和溶故 B．蘿卜塊質(zhì)量一定減少

C．杯中的食鹽固體一定全部溶解 D．溶液的質(zhì)量一定增加

【題目】

【1】—你有乒乓球拍嗎?

—是的，我有。

—Do you__________ a ping-pong bat?

—Yes，I__________.

【2】—Jane有網(wǎng)球嗎？

—不，她沒有。

— ________Jane _________a tennis ball?

—No, she___________,

【3】讓我們走吧！我們遲到了。

Let’s_______ ! We’re ________________.

【題目】下列有關(guān)溶液的說法中，正確的是（ ）

A．已達到飽和的氯化鈉溶液中不能再溶解其他物質(zhì)

B．20℃時，50g水中最多溶解18g氯化鈉，則20℃時氯化鈉的溶解度為18g

C．任何物質(zhì)的飽和溶液在升高溫度時，一定會變成該物質(zhì)的不飽和溶液

D．相同溫度時，同種溶質(zhì)的飽和溶液一定比它的不飽和溶液濃

【題目】一杯20℃的NaNO3溶液，能證明它是飽和溶液的是（ ）

A．蒸發(fā)10g水有NaNO3晶體析出

B．降低10℃時，有NaNO3晶體析出

C．加入10gNANO3晶體，仍有NaNO3晶體未溶解

D．在該溫度下，加入少許NANO3晶體，晶體質(zhì)量不減少

【題目】My name is David. I’m an American boy. For me, sports are fun. I have a collection of sports things. I have six basketballs, three tennis rackets, nine volleyballs, four soccer balls, and five baseballs. I play sports and I watch them on TV. Do you play sports? Do you have a sports collection?

根據(jù)短文內(nèi)容，回答下列問題。

【1】Is David American?

_______________________________________

【2】Are sports fun for David?

______________________________________

【3】Does David have a collection of sports things?

______________________________________

【4】How many baseballs does he have?

______________________________________

【5】Where does David watch sports?

______________________________________

【題目】t℃時，有一杯接近飽和的硝酸鉀溶液，下列做法一定不能使其變?yōu)轱柡腿芤旱氖牵?/span> ）

A．恒溫蒸發(fā)溶劑

B．降低溶液的溫度

C．向溶液中加入硝酸鉀

D．向溶液中加入t℃時硝酸鉀的飽和溶液

【題目】Mila：Let’s play computer games.

Ella：That sounds interesting. Where’s your computer?

Mila：I don't have a computer. Do you have a computer?

Ella：No, I don't. But I have a TV. Let's watch TV.

Mila：No，that sounds boring (無趣的）.Let’s play tennis. I have a tennis racket.

Ella：Good. Where is it?

Mila：On the sofa. Do you have a racket?

Ella：No, I don't. Does your brother have a racket?

Mila：Yes, he does. And he has tennis balls.

【1】Does Mila have a computer?

A. She has two computers.

B. Yes, she does.

C. No, she doesn’t.

D. She has a TV.

【2】Mila has a tennis racket. Where is it?

A. It’s on the sofa.

B. It’s under the table.

C. It’s under the bed.

D. It’s on the table.

【3】Does Ella have a tennis racket?

A. Yes，she does.

B. Yes, she has.

C. No, she doesn’t.

D. No, she hasn’t.

【4】Mila’s brother has___________.

A. a football

B. a baseball

C. a basketball

D. a tennis racket and tennis balls

【5】_______ have a tennis racket.

A. Mila and Ella

B. Ella and Ella’s brother

C. Mila and Mila’s brother

D. Ella and Mila’s brother

【題目】A：What’s this in English?

B：【1】

A：【2】

B：Yes, I do.

A：【3】

B：It’s in my room.

A：Do you play ping-pong?

B：No. 【4】

A：Haha. I have two bats but I don't have a ping-pong ball.

B：【5】

A：Great! Let’s go.

A.Do you have a ping-pong ball?

B.I don’t have a ping-pong bat.

C.It’s a ping-pong ball.

D.Well，let’s play ping-pong now.

E.Where is it?