L4-U1-P2-1 Listening : A Trip to Yosemite Park 1约塞米蒂公园之旅
Today, Christina and her friend are enjoying themselves. 今天，克里斯蒂娜和她的朋友玩得很开心。
This morning they got up very early and drove out of San Francisco. 今天早上，他们起得很早，开车离开了旧金山。
They crossed the Bay Bridge before the early morning commute and drovesouth. 他们在清晨上班前穿过海湾大桥，开车南下。
Because it was so early, there were almost no cars. 因为时间很早，几乎没有车。
After driving for an hour and a half, they stopped and had breakfast. 开车一个半小时后，他们停下来吃早饭。
They ordered pancakes and coffee. 他们点了煎饼和咖啡。
They also had some fresh fruit.他们还吃了一些新鲜的水果。
When they finished eating, it was 7 o’clock. 当他们吃完的时候，已经7点了。
Then they got back into the car and drove south. 然后他们上了车，向南开去。
Christina wanted to listen to music, so they turned on the radio. 克里斯蒂娜想听音乐，所以他们打开了收音机。
An hour later they stopped for gas. 一小时后，他们停下来加油。
They noticed that there was also a charging station for electric cars. 他们注意到那里还有一个电动汽车充电站。
It’s now 1:15 and they are in Yosemite Park. 现在是1:15，他们在约塞米蒂公园。
They have been there for two hours, since 11:15. 从11点15分开始，他们已经在那里待了两个小时了。
They are looking at Yosemite Falls, which is the highest waterfall in the park. 他们正在看约塞米蒂瀑布，这是公园里最高的瀑布。
The water drops a total of 740 meters from the top of the upper fall to
the base of the lower fall. 从上瀑布的顶部到下瀑布的底部，水总共下降了740米。
L4-U1-P2-2 Listening: A Trip to Yosemite Park 2
In another 15 minutes, they plan to eat lunch at a magnificent old hotel in the park. 15分钟后，他们计划在公园里的一个宏伟的老酒店吃午餐。
It was built in 1927 and has a great view. 它建于1927年，风景很好。
They wanted to stay there, but they couldn’t get reservations. 他们想待在那里，但没能订到位子。
To get a room at that hotel you usually need to make reservations several months in advance. 要在那家旅馆订房间，你通常需要提前几个月预订。
They play to stay in the park until around 4 o’clock. 他们在公园里玩到四点钟左右。
By then they will have been in the park for nearly 5 hours. 到那时他们已经在公园里呆了将近5个小时了。
Then they’ll get back into the car and drive back to San Francisco. 然后他们会回到车里，开回旧金山。
They plan to eat dinner somewhere along the way. 他们计划在沿途的某个地方吃晚餐。
If the traffic isn’t too bad, they should be back in San Francisco by 10 o’clock. 果交通不太糟的话，他们十点钟应该能回到旧金山。
Early tomorrow morning they are going to cross the Golden Gate Bridge and go north along the coast. 明天一早，他们将穿过金门大桥，沿着海岸向北走。
From some places, you can look out on the ocean and see whales and other sea life. 在一些地方，你可以眺望大海，看到鲸鱼和其他海洋生物。
Christina has never seen a whale before, so she’s looking forward to it. 克里斯蒂娜从没见过鲸鱼，所以她很期待。
And tomorrow night they have something special planned. 明晚他们有特别的安排。
They are going to watch a baseball game. 他们要去看棒球比赛。
Christina has never seen a baseball game, but she has heard that it is very popular in the US. 克里斯蒂娜从未看过棒球比赛，但她听说棒球在美国很受欢迎。
And the San Francisco baseball team is one of the best. 旧金山棒球队是最好的球队之一。
L4-U1-P2-3 Vocabulary: Science科学
A force is a push or a pull on an object. 力是对物体的推力或拉力。
A force changes the motion of a moving object. 力改变运动物体的运动。
A force can be strong or weak, and it always has a direction. 力可以强也可以弱，它总是有方向的。
The Earth is a planet that goes around the sun in a circular orbit. 地球是一颗以圆形轨道围绕太阳运转的行星。
The Earth has a layer of gas above its surface, which helps to support life. 地球表面有一层气体，帮助维持生命。
Atoms are the building blocks of matter. 原子是物质的基本组成部分。
At the center of an atom is its nucleus, which has a positive electric charge. 原子的中心是原子核，它带一个正电荷。
Outside the nucleus are electrons, which have a negative charge. 原子核外是带负电荷的电子。
Asteroids and comets are objects that orbit our Sun but are smaller than planets. 小行星和彗星是绕太阳运行但比行星要小的物体。
Asteroids that pass close to the Earth are called near-earth objects. 靠近地球的小行星被称为近地天体。
The layer of gases just above Earth’s surface is our atmosphere. 地球表面上方的气体层是我们的大气层。
The atmosphere is made up of gases such as oxygen and nitrogen. 大气是由氧、氮等气体组成的。
Without an atmosphere, there would be no life on Earth. 没有大气层，地球上就不会有生命。
L4-U1-P2-4 Vocabulary: Geometry几何
The two lines on the left intersect each other at a right angle, which is 90degrees. 左边的两条线相交成直角，即90度。
The 2 lines on the right are parallel, which means they never cross. 右边的两条线是平行的，这意味着它们不会相交。
The adjacent sides of a rectangle are perpendicular, which means they meet at a 90-degree angle. 矩形的邻边是垂直的，这意味着它们相交成90度角。
The opposite sides of a rectangle are equal and parallel, which means they never cross. 矩形的对边是相等平行的，这意味着它们永不相交。
The area of a rectangle is the length times the width. 矩形的面积是长乘以宽。
A circle is a 2-dimensional figure with a radius and a circumference, which is the distance around the circle. 圆是一个有半径和周长的二维图形，周长是绕圆的距离。
The area of a circle is pi r squared, where r is the radius and pi is the ratio of a circle’s circumference to its diameter. 圆的面积是r的平方，其中r是半径，pi是圆的周长与直径之比。
A sphere is a three dimensional figure with a radius and a volume, which is 4/3 pi r cubed. 球是一个有半径和体积的三维物体，它是4/3 r的立方。
All points on the surface of a sphere are equidistant from its center. 球面上所有点到圆心的距离都是相等的。
A right triangle is a 2-dimensional figure with 4 sides, 2 of which are perpendicular. 直角三角形是一个二维图形，有三条边，其中两条是垂直的。
To find its area, multiply the lengths of the 2 perpendicular sides, a and b, and divide by 2. A = 1/2 ab. 求出它的面积，将两条垂直边a和b的长度相乘，然后除以2。A = 1/ 2ab。
L4-U1-P2-5 Dialogue: Dinner Conversation晚餐谈话
M: Have you finished eating yet? 你吃完了吗?
F: No, I haven’t. 没有Why are you in such a hurry? 你为什么这么着急?
M: I’m sorry, but you are such a slow eater. 对不起，你吃得太慢了。
F: A slow eater? 吃得慢的人？Well I try to enjoy my food. 我试着享受我的食物。
You just eat and swallow. 你只是吃和吞咽。
I don’t see how you can even taste it. 我不知道你怎么能品尝它。
M: Ok, I’m sorry. 好吧,我很抱歉。
Do you mind if I get another glass of wine? 你介意我再来一杯酒吗?
F: No, go ahead. 不,请便。
I don’t want you to sit there putting pressure on me. 我不想你坐在那里给我施加压力。
I thought we were going to have a relaxing evening. 我以为我们会度过一个轻松的夜晚。
M: Yes, you are right. 是的，你说得对。
I’d like to relax, but I have a lot on my mind. 我很想放松一下，但是我脑子里有很多事。
F: Work related? 与工作有关？
M: Yes, it is.是的
I’ve been getting some strange emails from my boss. 我老板给我发了一些奇怪的邮件。
He wants me to cut down on my expenses. 他要我削减开支。
Maybe he wants to fire me.也许他想炒了我。
F: Is business bad? 是生意不好吗?
M: Yes, it is. But I don’t want to talk about it. 是的，但我不想谈这个。
F: Ok, but I’m a good listener. 好吧，但我是个很好的倾听者。
You can tell me if you’d like to. 你愿意的话可以告诉我。
M: Thanks, maybe some other time. 谢谢，也许改天吧。
I’ll try to stop thinking about it and deal with it tomorrow. 我尽量不去想它，明天再处理。
F: Good idea.好主意
You need to take a break from work. 你需要停下工作休息一下。
Your health is important and so am I. 你的健康很重要，我也很重要。
Yes you are.是的。
I don’t know what I would do without you.我不知道没有你我该怎么办。
