流利说 D59 2018-08-25 六
一、复习
Level4-Unit1-Part2*Learning-
- Listening-"A Trip to Yosemite Park 1"+1 D58-18/08/24+1
二、复习
Level4-Unit1-Part2*Learning-
- Listening-"A Trip to Yosemite Park 2"+1 D58-18/08/24+1
三、学习
Level4-Unit1-Part2*Learning-
- Vocabulary-"Science"+2
1、A force is a push or a pull on an object.
2、A force changes the motion[n.运动、提议、动力] of a moving object.
3、A force can be strong or weak, and it always has a direction.
- A force can increase or decrease the speed of an object, and it can change the direction of motion.
4、The Earth is a planet that goes around the sun in a circular[adj.圆的、循环的/n.通知、通告] orbit[轨道、常轨].
5、The Earth has a layer[n.层/地层/放置者] of gas above its surface which helps to support life.
6、Atoms are the building blocks[n.分段、块/v.阻碍] of matter.
- Atoms have a positively charged nucleus and negatively charged electrons.
7、At the center of an atom is its nucleus, which has a positive[adj.正的、正面的、积极的/n.正片、原级] electric charge.
8、Outside the nucleus are electrons[电子], which have a negative[adj.负的、消极的、否定的/v.否定、拒绝/n.否定(语)] charge[n.费用、冲击、价款/v.充、指控、要价、记账].
- The electric force between the nucleus[n.核/核心] and the electrons[电子] holds the atom together.
9、Asteroids[小行星] that pass close to the Earth are called near-earth objects.[靠近地球的小行星称为近地天体]
- Asteroids and comets are objects smaller than planets.
10、The atmosphere is made up of gases such as oxygen and nitrogen[氮].
11、Without an atmosphere, there would be no life on Earth.
If they collide[v.碰撞] with Earth they could cause an extinction[灭绝、废止] event.
These objects are too small to hold an atmosphere in place.
All points on the surface of a sphere are equidistant[等距离] from its center.
- Asteroid n.[天]小行星、海盘车、海星///adj.星状的
- Intersect vt.横断、横切、横穿///vt.& vi.（指线条、道路等）相交、交叉
- negative charge: 负电荷
- positive electric charge:正电荷
- orbit n.轨道、眼眶、势力范围、（人生的）旅程、生活过程///vt.& vi.在…轨道上运行、环绕轨道运行///vi.盘旋、绕轨道运行///vt.绕轨道而行、进入轨道
- Cube n.立方形、立方体；立方、三次幂；小房间///vt.求…的立方;把（食物）切成小方块;测定…的体积
- equidistance 等距离的
- Vocabulary-"Science"
A force is the push or a pull on the object. A force changes the motion of a moving object.
A force can be strong or weak and it always has a direction.
The earth is a planet that goes around the sun in the circular orbit. The speed of its motion doesn’t change and the direction of its motion does. The earth has a layer of gas above its surface, which helps to support life.
Atoms are the building blocks of matter. At the center of an atom is its nucleus, which has a positive electric charge. Outside the nucleus are electrons, which have a negative charge.
Asteroids and comics are object that orbits our sun, but are smaller than planets. Asteroid that pass close to the earth are called the near-earth objects. The layer of gases, just above the earth surface, is our atmosphere. The atmosphere is made up of gases, such as oxygen and hydrogen. Without an atmosphere, there will be not life on the earth.
the electric force between the nucleus and the electrons holds the atom together.
A force can increase or decrease the speed of an object, and it can change the direction of motion.