蜜雪儿英文英语科普知识

2021年1月6日发(作者：洪怡)

Unit1 Living and Nonliving things
How do Plants and Animals Need one another?
Main idea
Our environment includes Living and Nonliving things.
Plants and animals depend on each other.
They make up the environment.
Science knowledge:
(1) How do Animals get help from plants
1. They use plants for shelter. They hide or build home in plants.
2. Plants give off oxygen while animals need oxygen.
3. Some animals eat plant directly or indirectly.
(2) How do Animals give help to plants
Animals help plants to reproduce.
1. Animals carry fruits which contains seeds.
2. They spread pollen for plants, pollen stick to them.
Vocabulary
1. Environment n. 环境
2. Reproduce v. 繁殖
3. Pollen n. 花粉
4. Living and nonliving things 生物和非生物
5. Oxygen n. 氧气 give off oxygen 放出氧气
6. Depend on each other 互相依赖
7. Meet one’s demand 满足某人的需求
8. Stick v. 粘贴 stick to one’s idea 坚持自己的观点
n. 细棒

What is a food chain?
Main idea
All food chains are made of producers, consumers, and decomposers.
Energy moves up from plants to animals in a food chain.
Science knowledge
(1) food
1. Plants use a process called photosynthesis, using water, carbon
dioxide and energy from the sun to make sugars and give off oxygen.
2. living things eat other living things. They get energy from them.
(2) food chain
1. Food chain shows the path energy moves between living things in an
ecosystem.
2. The one been eaten is called prey and the one who eats the prey is
called predator. An animal can both be a prey and a predator.
Vocabulary
1. Food chain n. 食物链
2. Producer n. 生产者 make food themselves
3. Photosynthesis n. 光合作用
4. Consumer n. 消费者 eat or get food from the producer.
5. Decomposer n. 分解者
6. Carnivore n. 食肉动物 Herbivore n. 食草动物
Omnivore n. 杂食动物
7. Prey n. 猎物 predator n. 猎食者
8.
Raccoon n. 浣熊


Main idea
Unit2 Animals
What are Some kinds of Animals?
Animals can be put into groups.
They are different in order to survive.
Groups of animals have similiar body parts.
Science knowledge
Different features
1. Mammals has hair or fur covering their skin.
Most mothers give birth to live youth.
The young drink milk from their mother.
2. Birds have feathers, wings and beak. Not all birds can fly.
They use beaks to get food and build nests.
They lay eggs to have young.
3. Repitles have dry skin with scales.
Most mothers lay eggs on land.
4. Most young amphibian live in water.
While adults live on land.
They lay their eggs in water.
5. Fish live in water and use their gills to breathe in oxygen.
Fins help them to steer, swim and balance.

Most of them have scales.
6. Insects have six legs and three parts.
They have a hard body covering and have no bones.
Vocabulary
1. Different kinds of animals：
Mammal n. 哺乳动物 reptile n. 爬行动物
Amphibian n. 两栖动物 insect n. 昆虫
2. Feature n. 特点
3. Scale n. 鳞片
4. In order to = so as to 为了
5. Survive v. 生存
6. Similiar adj. 相近
7. Help sb. (to) do sth. 帮助某人做某事

Main idea
What are some Animal life cycles?
All animals reproduce to make new animals.
Young animals may or may not look like their parents.
Animals have a life cycle.
Science knowledge
(1) animal’s life cycle
1. Many animals begin by hatching from a egg.
2. Metamorphosis change when they grow.
(e.g. Egg--young tadpole--growing tadpole--frog)
(e.g. Egg--larva--pupa--adult butterfly)

(2) about butterfly
1. Egg: A female butterfly lays a tiny egg.
2. Larva: a larva hatches from the egg. It eats and grows quickly.
3. Pupa: It stops eating and makes a hard covering (pupa).
4. Butterfly: And adult flies out. It can have its young.

(3) about polar bears
1. Newborn: they are in the den, and drink milk from the mother.
2. Growing cub: they are outside exploring.
3. Young polar bear: they are learning to hunt and swim.
4. Adult polar bear: they live on its own and have young.
Vocabulary
1. Life cycle n. 生命周期
2. Metamorphosis n. 变形
3. Tadpole n. 蝌蚪
4. Larva n. 幼虫
5. Pupa n. 蛹
6. Breathe v. 呼吸
Breath n. 呼吸
7. Hunt v. 捕猎
8. Live on its own 自己生存
9. Covering n. 覆盖物
10. Den n. 窝

Unit 3 plants
What are some plant parts?
Main idea
Plants have parts that help them grow.
The Physical characteristic of plants help them meet their needs.
Science knowledge
The parts of plants and their use.
1. Leave use air, water and sunlight to make food
2. Stem carry water and nutrient (nutrition) from the roots.
And give water to leaves and other part of the plant.
3. The roots grow into soil and hold the plant.
They take water and nutrients from the soil.
4. The flower part includes pollen, petals and seeds.
The flower make seeds by pollen (a powder).
Most of them use pollen from other flowers.
Petals attract insects to help them move pollen.
Vocabulary
1. Physical characteristic n. 体型特征
2. meet their need v. 满足他们的需求
3. Sunlight n. 阳光
4. Stem n. 茎
5. Flower n. 花朵
6. Pollen n. 花粉
7. Petal n. 花瓣
8. Seed n. 种子
9. Powder n. 粉末
10. Attract v. 吸引