L4-U3-P4-1 Listening : Dream Jobs 理想工作
What kind of careers are the best, and what are the qualifications? 最好的职业有哪些，需要什么资格？
One of the most popular careers for kids is to become an astronaut. 孩子们最向往的职业之一就是成为宇航员。
Many kids dream of going into space when they grow up. 许多孩子梦想着长大后能进入太空。
They dream of working on a space station or exploring deep space. 他们梦想着在空间站工作或探索深空。
To become an astronaut, it's important to have the right background. 要成为宇航员，拥有正确的背景很重要。
Many astronauts have a background in engineering, physics or medicine. 许多宇航员都有工程学、物理学或医学的背景。
Sometimes they have a military background, such as flying military aircraft. 有时他们还有军事背景，比如驾驶军用飞机。
As for pay, astronauts can earn a good salary but not great. 至于薪酬，宇航员可以赚取不错的薪水，但并不是非常高。
习题：
Many kids dream of going into space when they grow up.
To become an astronaut, it's important to have the right background.
Another popular career is to become a musician or actor. 成为音乐家或演员是另一个受欢迎的职业选择。
Many kids dream of becoming famous singers or movie stars. 许多孩子梦想着成为著名的歌手或电影明星。
However, most musicians and actors don't become famous. 然而，大多数音乐家和演员并没有成名。
They are usually paid by the hour or by the performance. 他们通常按小时或按演出获得报酬。
Only a very few earn lots of money. 只有极少数人能赚很多钱。
So the best advice is not to become a musician or actor unless that's your real passion. 因此，最好的建议是，除非你真的热爱，否则不要成为音乐家或演员。
习题：
They are usually paid by the hour or by the performance.
Becoming a professional athlete is another dream job for many. 成为职业运动员是许多人梦寐以求的工作。
It's nice to imagine playing a favorite sport and getting paid for it. 想象一下，从事自己喜欢的运动并且还能获得报酬，这是很美好的。
However, becoming a professional athlete takes a lot of work and practice. 然而，成为职业运动员需要大量的工作和练习。
Great athletes practice for hours a day with teammates and coaches. 优秀的运动员每天要和队友及教练一起练习数小时。
They also work regularly with trainers to keep their bodies strong. 他们还经常与训练师合作，以保持身体强壮。
The level of pay for athletes depends on the success and level of their performance. 运动员的薪酬水平取决于他们的成功程度和表现水平。
Athletes often have short careers because of the physical requirements of their sport. 由于运动的体能要求，运动员的职业生涯通常很短暂。
When they are no longer able to compete at a high level, some athletes become coaches. 当他们不再能够在比赛中保持高水平时，一些运动员会成为教练。
习题：
The level of pay for athletes depends on the success and level of their performance.
Athletes often have short careers because of the physical requirements of their sport.
Firefighters and police officers are important jobs that help and protect people. 消防员和警察是帮助和保护人们的重要职业。
These careers require applicants to complete training programs and pass written and physical tests. 这些职业要求申请者完成培训项目，并通过书面和体能测试。
These jobs can be exciting and dangerous, so they require courage and sometimes sacrifice. 这些工作可能既刺激又危险，因此需要勇气，有时甚至需要牺牲。
习题：
These jobs can be exciting and dangerous, so they require courage and sometimes sacrifice.
Many astronauts have a background in engineering, physics or medicine.
Most musicians and actors don't become famous .
Great athletes practice for hours a day with teammates and coaches.
L4-U3-P4-2 Listening : Jobs and Wages工作和工资
When considering salary and benefits, some of the lowest paying jobs are in the hospitality and beauty industries. 在考虑薪资和福利时，一些薪酬最低的工作出现在酒店和美容行业。
For example, food service workers and hair stylists generally have low salaries. 例如，餐饮服务人员和发型师通常薪资较低。
These kinds of jobs don't require much education or training. 这类工作通常不需要太多的教育或培训。
But again, if you enjoy what you are doing, that may be good enough. 但是再次强调，如果你喜欢你正在做的事情，那可能就足够了。
For example, you may really enjoy talking with you customers. 例如，你可能真的很享受与顾客交谈。
Spending your life doing something you dislike can be very unsatisfying, even if the salary is high. 即使你不喜欢你的工作，但如果你能够从中获得乐趣，那么即使薪水不高，也可能比从事高薪但不喜欢的工作要来得更令人满意。
Some of the highest paid professions include doctors, lawyers and scientists. 一些薪酬最高的职业包括医生、律师和科学家。
However, these professions require high levels of education and training. 然而，这些职业需要高水平的教育和培训。
The path to becoming a doctor, for example, is a long one. 以成为医生为例，这是一条漫长的道路。
Doctors require a university degree, several years in medical school and several more years of experience. 医生需要大学学位、数年的医学院学习以及更多的实践经验。
Only then are they certified as a medical doctor, or MD. 只有在经历了这些之后，他们才能获得医学博士（MD）的认证。
So it doesn't make sense to consider these professions, unless you are willing to work hard for many years. 因此，除非你愿意为之努力工作多年，否则考虑这些职业是没有意义的。
And of course, you should really care about doing the work well. 当然，你确实应该真正关心把工作做好。
习题：
Some of the lowest paying jobs are in the hospitality and beauty industries . 一些薪酬最低的工作出现在酒店和美容行业。
Some of the highest paid professions include doctors, lawyers and scientists.
L4-U3-P4-3 Vocabulary : Types of Wars 战争的种类
Civil wars are fought between citizens of the same country and are fought within the country. 内战是同一国家的公民之间在国内进行的战争。
If citizens of a country disagree about a policy or leader, they may fight a civil war. 如果一个国家的公民对某项政策或领导人有分歧，他们可能会进行内战。
A world war is fought when countries form alliances, and these alliances fight each other. 世界大战是当国家结成联盟，这些联盟之间相互对抗时发生的。
A world war involves many or most of the world's most powerful countries. 世界大战涉及世界上许多或大多数最强大的国家。
There were two world wars in the 20th century. 20世纪发生了两次世界大战。
Terrorism involves groups of individuals rather than countries. 恐怖主义涉及的是团体而非国家。
Terrorists may come from different countries and they may share the same beliefs. 恐怖分子可能来自不同国家，他们可能有共同的信仰。
Terrorists often use car bombings and suicide attacks oninnocent people. 恐怖分子经常使用汽车炸弹和自杀式袭击来攻击无辜民众。
A terrorist attack can happen at any time and any place. 恐怖袭击可以在任何时间和任何地点发生。
An invasion occurs when one country attacks another. 侵略是指一个国家攻击另一个国家。
It sends its army into the other country and attempts to take control. 它派遣军队进入另一个国家并试图控制。
One of the most famous invasions was when France invaded Russia in 1812. 最著名的侵略之一是1812年法国入侵俄罗斯。
A defensive war occurs when a country is attacked and needs to defend itself. 防御战是指一个国家遭到攻击并需要自卫时发生的战争。
Most countries have a military so that it can defend itself if it's attacked. 大多数国家都有军队，以便在遭到攻击时能够自卫。
When France invaded Russia in 1812, the Russian army fought a defensive war and defeated the French army. 当1812年法国入侵俄罗斯时，俄罗斯军队进行了防御战并击败了法国军队。
习题：
If citizens of a country disagree about a policy or leader, they may fight a civil war.
A terrorist attack can happen at any time and any place.
When France invaded Russia in 1812, the Russian army fought a defensive war and defeated the French army.
Over 60 million people were killed in World War 2 .
A world war involves many or most of the world's most powerful countries.
An invasion occurs when one country attacks another.
L4-U3-P4-4 Vocabulary : Biology Terms 生物学术语
A cell is the basic unit of life.
A cell is the smallest structure that can live and reproduce.
Cells grow and develop, reproduce and interact with the environment.
Photosynthesis is one of the most important biological processes.
It allows plants to capture and use light as an energy source.
Photosynthesis is the process of converting light energy into chemical energy.
A virus is a small biological structure that attacks and enters cells.
Once inside a cell, a virus reproduces and makes many copies of itself.
Some diseases such as influenza are viruses.
Bacteria are one-celled forms of life that are all around us.
Although they have a single-cell structure, they are very important.
Many bacteria are inside us and help us digest our food.
DNA is a complex molecule that stores information and can make copies of itself.
Nearly every cell in a person's body has the same DNA.
The information stored in DNA tells cells what to do and is necessary for reproduction.
习题：
A cell is the smallest structure that can live and reproduce.
The influenza virus spreads through the air when people cough or sneeze.
Bacteria are one-celled forms of life that are all around us.
It allows plants to capture and use light as an energy source.
Some diseases such as influenza are viruses.
Nearly every cell in a person's body has the same DNA.
L4-U3-P4-5 Dialogue : Hotel Complain 酒店投诉
(W: Hotel Reception C: Customer M: Manager)
W: Good evening, sir. How can I help you? 晚上好，先生。我能为您做些什么？
C: Yes, we just checked in and our room is unacceptable. It's room 1810 (eighteen ten). 是的，我们刚刚登记入住，但是我们的房间令人无法接受。是1810号房间（十八十）。
W: Is there something wrong with the room? 房间有什么问题吗？
C: Yes, there certainly is. We requested a non-smoking room, but the room smells of smoke. 确实有。我们要求的是无烟房间，但房间里有烟味。
W: Let me check. Yes, that room is supposed to be a non-smoking room. 让我查一下。是的，那个房间应该是无烟房间。
C: Well, somebody certainly didn't follow the rules. The curtains smell like cigars. We can hardly breath, and the windows won't open. 嗯，肯定有人没有遵守规则。窗帘上有雪茄的味道。我们几乎无法呼吸，而且窗户也打不开。
W: Right, the windows don't open, sir. I'm really sorry about this. Let me see if I can find you another room. 是的，先生，窗户确实打不开。对此我非常抱歉。让我看看是否能为您换另一个房间。
C: Yes, please. We certainly can't stay in that room. Both of our kids have asthma, so the smell of smoke can cause breathing problems. 好的，请帮忙。我们当然不能住在那个房间里。我们的两个孩子都有哮喘，所以烟味会导致呼吸困难。
W: Yes, I understand your concern. 是的，我理解您的担忧。
习题：
They can't stay in that room because it can cause breathing problems for for their kids.
Let me see if I can find you another room.
W: Sir, I'm afraid we don't have any other rooms with two double beds. If you'll excuse me, I'll speak with my manager. Sorry about this. 先生，恐怕我们没有其他配有两张双人床的房间了。如果您不介意，我得和经理谈谈。对此我感到抱歉。
C: We're really tired and we would like to get some rest as soon as possible. 我们真的很累，希望能尽快休息。
W: Yes, I understand. If you don't mind, could you wait in the lounge near the elevators? I shouldn't be long. 是的，我理解。如果您不介意，能否请您在电梯附近的休息室稍等？我不会太久的。
C: Sure, I hope it doesn't take time. 好的，希望不会太久。
习题：
If you'll excuse me,I'll speak with my manager .
Let me see if I can find you another room.
The hotel stuff member is being polite and understanding.
Yes, that room is supposed to be a non-smoking room.
M: Good evening sir, I'm the manager here, I'm sorry to hear about your room. 晚上好，先生，我是这里的经理，听说您的房间有问题，我深感抱歉。
C: Yes, we are not happy, and we are really tired. I hope you can help us. 是的，我们很不满意，而且我们真的很累。希望您能帮我们解决。
M: I'm sure we can. Since we don't have another non-smoking room for you, I'll upgrade you to a suite. Would that be ok? 我相信我们可以解决。由于我们没有其他无烟房间可供您换住，我将为您升级到套房。这样可以吗？
C: Yes, that would be fine. There is no extra cost, right? 好的，那可以。没有额外费用吧？
M: No sir. There will be no extra charge. 不，先生。不会有额外收费。
C: And it's non-smoking, right? 而且是无烟房间，对吧？
M: Yeah sir. I've confirmed that it's non-smoking. 是的，先生。我已经确认这是无烟房间。
C: Thanks. I really appreciate your help. 谢谢。我非常感谢您的帮助。
M: It's my pleasure, sir. I hope you and your family have a wonderful stay with us. Here is my card. If there is anything else I can do for you, please let me know. 这是我的荣幸，先生。希望您和您的家人在我们这里度过一个愉快的入住体验。这是我的名片。如果还有其他我能帮忙的，请随时告诉我。
C: I will. Have a good evening. 我会的。祝您晚上愉快。
M: Thank you sir, and once again, let me apologize for the same inconvenience. 谢谢您，先生，再次对给您带来的不便表示歉意。
习题：
The manager apologizes for the inconvenience.
There is no extra cost, right?
The manager apologizes for the inconvenience.
He upgrades them to a suite.
