万思乐学V-Learn小西妈双语工程@201801期406Max@20181209@Day282

卡丁

🎵Peppa pig S2

ORT L5-6

📽Peppa pig S2E7-8

🇨🇳早读晚诵

The teeter-totter, also known as a seesaw, is a common playground fixture. Although there are many different ways to construct one, they all use the same principle.The lever principle.

A teeter totter is a long plank or platform which is suspended on a fulcrum.

Look at this tire teetertotter，we can make a plan to make a tire teetertotter at next spring.Remind me to add this item on our spring.bucket list.

I considered Max's construction is an Ark.But Max thought it is a Amphibious aircraft.

Where could you see the teetertotter?

The amusement arcade,the adventure playground,the penny arcade,the recreation ground,school yard.

Anyother rides that you can see at these places?

The climbing frame,the jungle jym,paddling pool,wading pool,playpen,roundabout,wendy house.

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Amphibians are defined as those species of animals that live both on land and water. Such animals are typically ectothermic or cold blooded. Typical examples of amphibian animals include frogs and toads, newts and salamanders, caecilians (that resemble earthworms) etc. 
Amphibians can be found in every continent on earth except Antarctica. Rainforests, rivers, alpine basins, deserts are the varied habitats within which amphibians can be found.
Frogs are born with a large mouth and sticky tongue that help them catch their prey. Frog meals are swallowed whole, similar to that of snakes as without teeth frogs are unable to chew. 

Amphibians are a class of animals like reptiles, mammals, and birds. They live the first part of their lives in the water and the last part on the land. 

When they hatch from their eggs, amphibians have gills so they can breathe in the water. They also have fins to help them swim, just like fish. Later, their bodies change, growing legs and lungs enabling them to live on the land. The word "amphibian" means two-lives, one in the water and one on land. 
Amphibians are Cold-blooded
Like fish and reptiles, amphibians are cold-blooded. This means their bodies don't automatically regulate their temperature. They must cool off and warm up by using their surroundings.
Growing up from Egg to Adult
Most amphibians hatch from eggs. After they hatch, their bodies are still in the larvae stage. In this stage they are very fish like. They have gills to breathe under water and fins to swim with. As they grow older, their bodies undergo changes called metamorphosis. They can grow lungs to breathe air and limbs for walking on the ground. The transformation isn't the same in all amphibians, but they all go through some sort of metamorphosis.

Stages of a Frog
As an example of metamorphosis, we will look at the frog:
Lifecycle of a frog
a) after hatching the frog is a tadpole with a tail and gills
b) it becomes a tadpole with two legs
c) a tadpole with four legs and a long tail
d) a froglet with a short tail
e) a full grown frog

Types of Amphibians
Frogs - Frogs are amphibians of the order anura. They generally have a short body, webbed fingers and toes, bulging eyes, and no tail. Frogs are good jumpers with long powerful legs. Toads are a type of frog. Two species of frogs are the American bullfrog and the poison dart frog.
Salamanders - Salamanders look a bit like lizards. They have skinny bodies, short legs, and long tails. Salamanders can re-grow lost limbs and other body parts. They like wet, moist areas like wetlands. A newt is a type of salamander.
Caecilians - Caecilians are amphibians that don't have legs or arms. They look a lot like snakes or worms. Some of them can be long and reach lengths of over 4 feet. They have a strong skull and a pointed nose to help them burrow through dirt and mud.

Where do they live?
Amphibians have adapted to live in a number of different habitats including streams, forests, meadows, bogs, swamps, ponds, rainforests, and lakes. Most of them like to live in or near water and in damp areas.
What do they eat?
Adult amphibians are carnivores and predators. They eat a variety of food including spiders, beetles, and worms. Some of them, like frogs, have long tongues with sticky ends that they flick out to catch their prey.
The larvae of many amphibians mostly eat plants.

A group of frogs is called an army.

Stationery shop ，文具再磨一遍

Max drew a freckled boy,said "I am very good at drawing myself."

Peppa pig Retell S2E6 Mystery