Let's see the lions. 我们去看狮子吧。 “let's” 是let us的缩写。Let's do… 常用来建议一起去做…。如：Let's go home. Let's go to see the film.
He can walk on two legs. 他会立起用两条腿走路。 “on”表示用…接触地面。如：He stands on his head. 他倒立着。 He stands on one foot. 他单腿独立。He lies on his back. 他仰躺着。 He lies on his stomach. 他俯卧着。
Well, because she's kind of boring. 因为她有点儿烦人。 “kind of” 有点。
People say that “an elephant never forgets. 人们说，大象从不忘事。
Elephants can walk for a long time and never get lost. 大象能够长时间行走而且从不迷路。 “get lost” 迷路。第二单元出现过 “get dressed” 穿好衣服。以后我们还会遇到很多这种结构。“get + 过去分词”，我们只要翻译后面一个单词的意思就行了。
People also kill elephants for their ivory. 人们也为象牙而猎杀大象。“kill…for…” 为了…而猎杀…。一般来説，长在大象身上的象牙叫 tusk. 用来作为工艺品的才叫ivory.
They can also remember places with food and water. 它们还能记住那些有食物和水的地方。 “with foof and water” 是介词短语作定语，修饰places.
We must save the trees and not buy things made of ivory. 我们必须拯救树木，拒买象牙制品。 “made of ivory” 是过去分词短语作定语。“made of” 是 “用…制的”。
重点句子归纳：
Let's see the lions.
He can walk on two legs.
She is kind of boring.
Elephants can walk for a long time and never get lost.
They can also remember places with food and water.
原因状语从句 用一个从句来说明事情发生的原因，这个从句就叫做原因状语从句。原因状语从句由从属连词because(因为), since(既然), now that(既然), as(由于)等引导。例如：
I like pandas because they are very cute. 我喜欢熊猫是因为他们很可爱。
I don't like tigers because they are really scary. 我不喜欢老虎是因为他们真的很吓人
Now that‘everybody is here, let's begin our discussion. 既然大家都到了, 我们就开始讨论吧.
As the weather was fine, we decided to climb the mountain. 由于天气很好, 我们决定爬山。
Since he is busy, I won't trouble him. 既然他很忙, 我就不打扰他了。
课堂在线小测验
一、课文理解检测
Elephants are animals. They can soccer or music. They can also draw very . People say that "an elephant forgets". Elephants can walk a long time and never get . They can also remember places food and water. This helps them to . But elephants are in great . People cut many trees so elephants are losing their homes. People also kill elephants their ivory.
参考答案：
smart, play, well, never, for, lost, with, live, danger, down, for
课后听力练习
(单击放音键开始放音)
These are my parents.
My name is Betty King. These are my parents. We're American. My father is an actor, and my mother is the manager of a theatre.
My name is Tony Smith and I'm English. This is my mother. She's an English teacher at a school. This is my father. He's a hotel manager.
我叫贝蒂?金。这是我的父母。我们是美国人。我爸爸是一名演员，我妈妈是剧院的经理。
我叫托尼?史密斯，我是英国人。这是我妈妈。她是学校的英语老师。这是我爸爸。他是酒店的经理。
补充阅读
Pandas
Pandas are lovely animals. Most of them live in the deep forests of Sichuan Province in China. They have white fur, though their shoulders, legs, ears and eyes are black. Pandas are usually very heavy, some of them can be about 1.5 meters tall and weigh about 100 kilograms. However, pandas are very agile, they can climb trees as easily as some other creatures do. Pandas have big, sharp teeth and live mainly on bamboo leaves. Every day each grown-up panda eats about 15-30 kilograms of bamboo leaves and they usually spend 10-12 hours eating. Pandas also have spare-time hobbies. Two of their hobbies are climbing trees and sleeping. Sadly, there are not many pandas left in the world because some people keep cutting down trees, and bad hunters are trying to kill them for money. The Chinese government is doing its best to protect pandas from being harmed or killed.
