小西妈双语工程2007期58号Eason打卡Day140【1a Unit 2】

鲍鲍

英语: 1a unit 2

汉语: 汉三第七单元&汉二第六单元复习

识字：学前快读600字第二册

理解性阅读：海尼曼中，牛津树3

listening：0a，0b，1a，peppa pig s1

video：1a unit1-12, peppa pig s1

Letters:

古诗:

Activities

1.Parts of the cow牛的身体部位

2.Family of cows奶牛成员

3.make your own farm农场DIY

4.Sort animals动物分类

5.Cow food奶牛食物

6.Milk a cow挤牛奶游戏

Parts of the cow身体部位

p: look at the picture. What’s this?

k: Cow.

p: Right. It’s a cow. What color is it

k: it’s brown and white

p: Cows vary in all different colors, some are brown, tanned, white, black, brown-white patched or black-white patched. This one is brown and white

horns

p: Look at here. They are horns. Bulls have big horns, and some female cows may have small horns.

ears

p: a cow's ears are very flexible and can turn in any direction. Can your ear turn in any direction?

k: no. I can’t

p: we can't. we don't know how to control out ears

nose/nostril and muzzle/mouth

p: This is his nose and mouth. A cow's mouth is big and adapted for grazing, grazing means eating grass. Cows have 32 teeth in all, and you have 20 teeth now.

legs and feet/hoof

p: These are cow's legs and feet. How many legs and feet does a cow have

k: four legs and four feet

p: Cows have cloven-hoofed feet, this means they are divided into two parts.

tail

p: cows have long tails which they use to make the bugs go away like the horse does. When the bugs are going to sting the cow. What will the cow do

k: the cow will slap it’s tail to make the bugs go away

p: that’s right

udder and teats

p: look at here. It's udder. Udder is a bag with four teats that hang down near the back legs and we can get the milk from the udder. What’s in the udder

k: milk

p: yes. The milk is stored in the udder and the milk will come through the teats. Do you want to play a game to milk the cow

k: yes

p: ok. We will play it later.

Family of cows奶牛成员

Daddy = Bull

Mummy = Cow

Big Sister = Heifer

Baby = Calf

• the only cow that should be called a cow, are female ones.
• The male cow is actually a bull
• a young male cow is called a bull calf.
• A young female cow who hasn’t had any calves yet is called a heifer.

p: look at the picture. which one is the daddy cattle

k: this one.

p: what’s its name

k: bull

p: which one is the mommy cattle.

k: this one. It’s a cow

p: which one is the baby

k: this one. It’s a calf

p: let’s see we are a cow family. So you will be a calf.

p: how about daddy

k: daddy is the bull

p: how about mommy

k: mommy is a cow

区分：

• cattle:是牛这种哺乳动物的总称
• bull:用于配种的公牛
• cow:以挤奶为目的的奶牛
• ox:经过阉割后的公牛
• buffalo:水牛
• yak:牦牛

Bull

Cow

Calf

Cow and calf

Yak

Buffalo

Make your own farm农场DIY

p: here are some farm animals. Do you know what they are.

k: yes, cow/sheep/horse/rooster/duck/pig......

p: ok. Now start to make your own farm. Choose the animals you want to put into your farm.

Animals provide us with many daily food that is very important to our lives

Sort animals动物分类

Here are some animals. Let’s sort them and match with the foods.

1. pets: dog/cat
2. wild animals: alligator, giraffe, tortoise, tiger.....
3. farm animals: cow, horse, sheep, pig.....

简单的比较一下三类动物的区别

p: talk about the differences between the pets and wild animals and farm animals.

k: the pets get live at its owner’s home. The wild animals live in the wild. The farm animals live at the farm

k: the pets get food from their owners. The wild animals get food from themselves. The farm animals get foods from the farmers.

Cow food奶牛食物

Prepare some foods and make a paper cow

p: do you know what cows like to eat?

k: it likes to eat grass, hay and grains

p: yes. Cows are herbivores which means they do not eat any meat, but only grass, hay and grains.

p: Cows are ruminant animals which means they have more than one stomach. Cows have a four part stomach, each part used for a different process.

p: Cows swallow their food without chewing it too much at first. Cows later regurgitate a 'cud' which is then chewed well and swallowed.

p: the cow is hungry. he wants to eat something. Let’s start to feed it.

k: ok

p: here are some foods, such as rice, corn, wheat, soybean, oats, barley and meat/fish. remember that cow does not eat any meat or fish.

p: is your cow full

k: no. It’s not full.

P: but you don’t have anymore food. If it eats the meat or fish, it will be sick. Look. the cow has eaten all the foods, I think he is full now.

k: no. He is still hungry.

P: ok. I’ll get more foods for it.

hay

barley

grass

The anatomy of a cows stomach

1. The Rumen – this is the largest part and holds upto 50 gallons of partially digested food. This is where the 'cud' comes from. Good bacteria in the Rumen helps soften and digest the cows food and provides protein for the cow.

2. The Recticulum – this part of the stomach is called the 'hardware' stomach. This is because if the cow eats something it should not have like a peice of fencing, it lodges here in the Recticulum. However, the contractions of the reticulum can force the object into the peritoneal cavity where it initiates inflammation. Nails and screws can even peroferate the heart. The grass that has been eaten is also softened further in this stomach section and is formed into small wads of cud. Each cud returns to the cows mouth and is chewed 40 – 60 times and then swallowed properly.

3. The Omasum – this part of the stomach is a 'filter'. It filters through all the food the cow eats. The cud is also pressed and broken down further.

4. The Abomasum – this part of the stomach is like a humans stomach and is connected to the intestines. Here, the food is finally digested by the cows stomach juices and essential nutrients that the cow needs are passed through the bloodstream. The rest is passed through to the intestines and produces a 'cow pat'.

Milk a cow挤牛奶

p: do you want to milk a cow by hands?

k: yes

p: let's play the game to milk a cow. look, what's this?

k: a glove

p: Yes, it's a glove. Shall we fill it with water?

K: ok.

P: now it’s filled with water. Now we use it as a cow’s udder. How many treats does a cow have

k: four

p: how many teats are here

k: five

p: so I need to take one away. A udder is a bag with four teats. It’s really like the cow’s udder. Right?

p: go get your green bucket and a stool. You need to sit down. now let's start to milk.

p: First, use the cloth to clear the udder and teats, make sure that they are clean before we milk. ok. the udder and teats are clean. Now show me your hands, and I will show you how to milk.

p: Hold/grasp the top of the teat with your thumb and index finger trapping the milk in the teat canal. Remember, always use a gentle touch when milking a cow.

p: Now I’m going to make a hole at the top of teats with a needle. now gently but firmly squeeze the rest of your fingers on the teat to squirt it into the bucket.

p: look at the udder, it's full of milk now. And continue to milk in this way until your cow's udder is out of milk.

p: is the udder empty now

k: yes. It’s empty.

P: now you can tell the udder is empty. you have squeezed all the milk out. What’s in the bucket

k: milk. The bucket is filled with the milk.

How to Milk a Cow by Hand

Step1: Take a rag that is wet with warm water to clean the udder and teat. Sometimes, I add a few drops of liquid castile soap to this water. Be sure that all of the dirt, manure, and debris is cleaned off, you don't want any of that getting into your milk. This warm rag also helps your milk cow to let down her milk. I don't think Gertie (or any cow) would appreciate a cold rag very much!

This warm rag also helps your milk cow to let down her milk. I don't think Gertie (or any cow) would appreciate a cold rag very much!

Step2: Grasp the top of the teat with your thumb and index finger trapping the milk in the teat canal. Remember, always use a gentle touch when milking a cow. There's no need to be aggressive with their udder. They won't like it and neither will you.

Then, gently but firmly squeeze the rest of your fingers on the teat to squirt it into the bucket. Important: DO NOT pull or tug on the teat, just gently squeeze the milk down. Personally, I only do about 3-4 squirts at first so I can inspect the milk to be sure there are no clumps or anything off about it.

The first couple of squirts also contain the highest bacterial count so it is a good idea to dump those out. Once you check your milk to make sure it is clean, you are ready to move forward with milking your cow.

Step3: Continue to milk in this manner until your cow's udder is out of milk. I use a small 2qt pail to milk into. Once the small pail is about 3/4 full, I pour the milk into my large pail that is lined with a mesh strainer. By handling the milk in this manner, I am able to make sure we have plenty of clean milk.

If my milk cow were to kick the pail over or put her foot in it, I won’t lose all of the milk from that milking. The mesh strainer in the larger pail helps to keep any debris that may have gotten into the small pail out of the milk.

Towards the end of the milking her teat will not refill as quickly. At the very end of milking you can coerce the remaining milk into the teat with a gentle massaging motion.

Step4: You can tell the udder is empty because it looks and feels empty. Once your cow's udder is emptied out completely, you are finished milking and can let her go back to her pasture.

I always make sure that Gertie is completely milked out so that we don't risk her getting mastitis or her production going down. Milk in livestock is much like in a human, supply and demand.