Listening
States of Matter
物質(zhì)狀態(tài)
Matter is made of atoms and molecules.
物質(zhì)是由原子和分子組成的爷抓。
Water, for example, is the H2O molecule.
例如肠阱，水就是水分子潦牛。
This means that a molecule of water has 3 atoms.
這意味著一個水分子有3個原子岳悟。
A water molecule has 2 hydrogen atoms and one oxygen atom.
水分子有兩個氫原子和一個氧原子声登。
Substances like sugar have many atoms in their molecules.
像糖這樣的物質(zhì)分子中有許多原子意蛀。
A molecule of sugar has many atoms, including carbon, hydrogen and oxygen.
糖分子有許多原子志于，包括碳突勇、氫和氧装盯。
Matter is made of molecules, such as H2O, which is the water molecule.
物質(zhì)是由分子組成的，例如水分子甲馋。
Matter can be in one of three states: solid, liquid or gas.
物質(zhì)可以是三種狀態(tài)之一：固體埂奈、液體或氣體。
Water and ice are the same substance, but they are in different states.
水和冰是相同的物質(zhì)定躏，但它們處于不同的狀態(tài)账磺。
These states depend on the temperature of the molecules.
這些狀態(tài)取決于分子的溫度。
When we heat a substance, the molecules move faster and try to take up more space.
當我們加熱物質(zhì)時痊远，分子移動得更快垮抗，并試圖占據(jù)更多的空間。
When we cool a substance, the molecules move more slowly.
當我們冷卻物質(zhì)時碧聪，分子移動得更慢冒版。
When we cool a substance to its freezing point, it becomes a solid.
當我們把物質(zhì)冷卻到冰點時，它就變成固體逞姿。
In a solid, the molecules move very little.
在固體中辞嗡，分子運動很少。
Their positions are almost fixed.
他們的位置幾乎是固定的滞造。
To be fixed means that their positions don’t change.
固定意味著他們的位置不變续室。
If we heat the molecules, they move faster and away from each other.
如果我們加熱分子，它們移動得更快谒养，彼此遠離挺狰。
The solid begins to melt, like ice cream on a hot day.
固體開始融化，就像熱天的冰淇淋。
At a certain temperature, the solid begins to change into a liquid.
在一定溫度下她渴，固體開始變成液體达址。
The temperature at which a solid changes into a liquid depends on the substances.
固體變?yōu)橐后w的溫度取決于物質(zhì)蔑祟。
For water, the solid begins to change into a liquid when its temperature rises to above 0 degrees Celsius.
對于水來說趁耗，當固體溫度上升到0攝氏度以上時，它就開始變成液體疆虚。
For some substances, such as steel, the temperature at which it becomes a liquid is much higher.
對于某些物質(zhì)苛败，如鋼，它變成液體的溫度要高得多径簿。
Steel often melts at around 1370 degrees Celsius.
鋼通常在1370攝氏度左右熔化。
If we continue to heat a liquid, the molecules move even faster.
如果我們繼續(xù)加熱液體，分子移動得更快揪阶。
At a certain temperature, the liquid begins to change into a gas.
在一定溫度下宙刘，液體開始變成氣體。
For water, the liquid begins to change into a gas at 100 degrees Celsius.
對于水译蒂，液體在100攝氏度時開始變成氣體曼月。
That is the boiling point of water.
這就是水的沸點。
Inside a star, such as our Sun, the temperature is very high.
在恒星內(nèi)部柔昼，比如我們的太陽哑芹，溫度很高。
Everything inside the Sun is a gas.
太陽內(nèi)部的一切都是氣體捕透。
According to scientists, there are over 65 elements inside the Sun.
據(jù)科學家稱聪姿，太陽內(nèi)部有65多種元素。
These include oxygen and iron.
其中包括氧氣和鐵乙嘀。
Over 90 percent of the Sun is hydrogen gas.
超過90%的太陽是氫氣末购。
聽力
Listening
Test Results
測試結(jié)果
Yesterday there was an important science test.
昨天有一次重要的科學測試。
Lisa, Tom and 20 other classmates took the test.
Lisa虎谢、Tom和其他20個同學參加了考試招盲。
The test was about the states of matter and how they are different.
測試是關(guān)于物質(zhì)的狀態(tài)以及它們是如何不同的。
There were 25 questions on the test, and they had 45 minutes to take it.
測試中有25個問題嘉冒，他們有45分鐘的時間來回答曹货。
Here are some of the test results.
以下是一些測試結(jié)果。
Two students got perfect scores.
兩個學生得了滿分讳推。
The lowest score was 68 out of a hundred.
最低的分數(shù)是68分顶籽。
The average score was 86.3.
平均分為86.3分。
Eleven students scored higher than average.
11名學生的分數(shù)高于平均分银觅。
Eleven students had below average scores.
11名學生的分數(shù)低于平均分礼饱。
Tom missed two questions on the test, so his score was 92.
Tom在考試中漏掉了兩個問題，所以他的分數(shù)是92分。
His score was the eighth highest in the class.
他的分數(shù)是全班第八名镊绪。
Lisa missed two and a half questions, so her score was 90.
Lisa漏了兩個半問題匀伏，所以她的分數(shù)是90分。
Her score was the tenth highest score.
她的分數(shù)是第十名蝴韭。
Her score was 4 points higher than the average score.
她的分數(shù)比平均分高4分够颠。
Lisa was disappointed with her test results.
Lisa對她的測試結(jié)果很失望。
She studied hard for the test, but she still didn't do well.
她為了考試刻苦學習榄鉴，但仍然沒有考好履磨。
As a result, she plans to study harder for the next test.
因此，她計劃在下一次考試中更加努力地學習庆尘。
The next test will be in about two weeks.
下一次測試將在大約兩周后進行剃诅。
Tom was surprised and happy with his test results.
Tom對他的考試成績感到驚訝和高興。
He didn't study hard, so his result was better than he expected.
他不太努力學習驶忌，所以他的成績比他預(yù)期的好矛辕。
He was also happy that he did better than Lisa did.
他也很高興自己做得比Lisa好。
詞匯
Vocabulary
Emotions
情感
She is screaming because she is really scared.
她尖叫是因為她真的很害怕付魔。
Something is chasing her so she is screaming for help.
有什么東西在追她聊品，所以她在尖叫求救。
He is shouting because he is angry.
他因為生氣而大喊大叫抒抬。
When he's really angry he often shouts like this.
當他真生氣的時候杨刨，他經(jīng)常這樣大喊大叫。
She's sleeping because she's tired.
她睡覺是因為累了擦剑。
Last night she didn't get enough sleep, so today she has no energy.
昨晚她睡眠不足妖胀，所以今天她沒有精力。
She's crying because she's sad.
她哭是因為傷心惠勒。
She got some bad news a few minutes ago.
幾分鐘前她收到了一些壞消息赚抡。
She's smiling because she's happy.
她笑是因為高興。
Her boyfriend just called and he is returning from a long trip.
她男朋友剛打電話來纠屋，他要長途旅行回來了涂臣。
詞匯
Vocabulary
Hobbies
業(yè)余愛好
This man is hiking up a mountain trail.
這個人正在爬山。
He is wearing hiking boots and is carrying a pack on his back.
他穿著登山靴售担，背著一個背包赁遗。
This man enjoys cooking.
這個人喜歡烹飪。
He attends a cooking class once a week.
他每周上一次烹飪課族铆。
This woman enjoys gardening.
這個女人喜歡園藝岩四。
She grows flowers, such as roses, and vegetables, such as tomatoes, in her garden.
她在花園里種花，如玫瑰哥攘，蔬菜剖煌，如西紅柿材鹦。
This boy loves playing games.
這個男孩喜歡玩游戲。
He likes all kinds of games, including this video game on his computer.
他喜歡各種各樣的游戲耕姊，包括他電腦上的這個電子游戲桶唐。
This old couple enjoys traveling.
這對老夫婦喜歡旅行。
They take several trips a year, often to different countries.
他們一年有幾次旅行茉兰，經(jīng)常去不同的國家尤泽。
對話
Dialogue
Ready for the Meeting
準備好開會
W: Oh, there you are, finally.
W：哦，終于到了邦邦。
M: Yeah, I'm sorry.
M：是的安吁，對不起醉蚁。
W: Why are you so late? You were supposed to be here 30 minutes ago.
W：你為什么這么晚燃辖？你應(yīng)該在30分鐘前到這里。
M: I got on the wrong subway by mistake.
M：我上錯地鐵了网棍。
W: Why didn't you call? I was really worried.
W：你為什么不打電話黔龟？我真的很擔心。
M: I don't have my phone. I left it in the office because I was in such a hurry to get here.
M：我沒帶電話滥玷。我把它忘在辦公室了氏身，因為我太急了。
W: OK, well, you're here now. We don't have much time.
W：好吧惑畴，你現(xiàn)在在這兒蛋欣。我們時間不多。
M: Yes, we'll have to hurry. The meeting starts in 15 minutes, right?
M：是的如贷，我們得快點陷虎。會議15分鐘后開始，對嗎杠袱？
W: Yes, it's supposed to, if everyone gets here on time.
W：是的尚猿，如果每個人都準時到的話，應(yīng)該是這樣楣富。
W: Did you read my presentation?
W：你看過我的報告了嗎凿掂？
M: Yes, I do. It's good, but it's a bit too long. I'm afraid there won't be enough time for questions.
M：看過了。很好纹蝴，但有點太長了庄萎。恐怕沒有足夠的時間提問塘安。
W: Do you have any suggestions?
W：你有什么建議嗎糠涛？
M: Yes, I do. I think the company introduction can be cut in half. They know what we do.
M：有。我認為公司介紹可以減半耙旦。他們知道我們在做什么脱羡。
W: OK, I won't show the video. It's about 2 minutes long.
W：好的萝究，我不播放這個視頻。它大約2分鐘長锉罐。
M: That's a good idea. The video is on our website and is not that good any way.
M：好主意帆竹。視頻在我們的網(wǎng)站上，無論如何都不太好脓规。
W: Do you have any other suggestions?
W：你還有其他的建議嗎栽连？
M: No, I don't. I'm sure you're doing a great job. Are you ready?
M：沒有了。我相信你做得很好侨舆。你準備好了嗎秒紧？
W: Yes, I'm ready. The meeting room is on the 21st floor.
W：是的，我準備好了挨下。會議室在21樓熔恢。
M: OK, let's go.
M：好的，我們走吧臭笆。
對話
Dialogue
Discussing Test Results
討論測試結(jié)果
Lisa: How did you do on yesterday's science test?
Lisa：你昨天的科學考試考得怎么樣叙淌？
Tom: I did better than expected. How about you?
Tom：我做得比預(yù)期的好。你呢愁铺？
Lisa: I didn't do very well. I expected to do better than I did.
Lisa：我做得不太好鹰霍。我希望比我預(yù)期的好。
Tom: What was your score?
Tom：你的分數(shù)是多少茵乱？
Lisa: I got a 90. What about you?
Lisa：我得了90分茂洒。那你呢？
Tom: I got a 92. I only missed two questions.
Tom：我得了92分瓶竭。我只漏了兩個問題督勺。
Lisa: So you did better than I did. And I really studied for it too.
Lisa：所以你做得比我好。但我也真的學習過的在验。
Tom: That is a surprise. You usually do better than I do.
Tom：真是個驚喜玷氏。你通常比我做得好。
Lisa: Yes, I wasn't careful. I made one really stupid mistake.
Lisa：是的腋舌，我不小心盏触。我犯了一個非常愚蠢的錯誤。
Tom: What was it?
Tom：是什么块饺？
Lisa: I said 90% of the sun is Helium instead of Hydrogen.
Lisa：我說太陽的90%是氦而不是氫赞辩。
Tom: Wow. That was a stupid mistake.
Tom：哇。那是個愚蠢的錯誤授艰。
Tom: What was the average score for the class, do you know?
Tom：你知道這門課的平均分是多少嗎辨嗽？
Lisa: The average score was 86.3 and the lowest was 68.
Lisa：平均分是86.3分，最低分是68分淮腾。
Tom: Do you know who got the lowest test score?
Tom：你知道誰的考試分數(shù)最低嗎糟需？
Lisa: No, I don't. I don't know who got the lowest score.
Lisa：不知道屉佳。我不知道誰的分數(shù)最低。
Tom: It's probably a secret. Did anyone get a perfect score?
Tom：這可能是個秘密洲押。有人得了滿分嗎武花？
Lisa: I think Ada and Sanjay both got perfect scores.
Lisa：我想Ada和Sanjay都得了滿分。
Tom: Yes, they always do well. I wish I were as smart as they are.
Tom：是的杈帐，他們總是考的很好体箕。我希望我和他們一樣聰明。
