Unit1 Living and Nonliving things
How do Plants and Animals Need one another?
Main idea
Our environment includes 英语作业本八下答案Living and Nonliving things.
forrest gumpPlants and animals depend on each other.
They make up the environment.
affordanceScience knowledge:
(1) How do Animals get help from plants
1. They u 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.尺子的英语单词
(2) How do Animals give help to plants
Animals help plants to reproduce.
1. Animals carry fruits which contains eds.
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 decompors.
Energy moves up from plants to animals in a food chain.
Science knowledge
(1) food
1. Plants u 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 themlvesbaila
3. Photosynthesis n. 光合作用
4. Consumer n. 消费者 eat or get food from the producer.
5. Decompor 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
Unit2 Animals
What are Some kinds of Animals?
Main idea
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.
talk to the hand The young drink milk from their mother.
2. 剖面图英文Birds have feathers, wings and beak. Not all birds can fly.
They u 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 u their gills to breathe in oxygen.
Fins help them to steer, swim and balance.writer
Most of them have scales.
6. Incts 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less reptile n. 爬行动物
Amphibian n. 两栖动物 inct 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
What are some Animal life cycles?
Main idea
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.
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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 u.
1. Leave u air, water and sunlight to make food
