欢迎您登陆
+ 影音搜索
听力等级

教育学习   

2023-08-25   Video
Photosynthesis- Part 4- Chloroplasts

Keywords:

Lets take a closer look at a chloroplast, the organelle where photosynthesis takes place. Photosynthesis consists of two sets of chemical reactions: the light reactions and the Calvin cyc...


2023-08-21   Video
Photosynthesis- Part 3- Leaf Structure

Keywords:

We are going to zoom in on a cross section of a leaf to have a closer look at the center of action for photosynthesis. A leaf has many different types of cells, such as mesophyll cells,...


2023-08-20   Pre-Intermediate
Should Parents Use Hitting as a Form of Punishment - Ⅱ

Keywords:

Nearly one hundred parents have been through this program. Rose Berge believes that their work has been effective in changing the community. “It has helped people talk about punishing children. The...


2023-08-18   Pre-Intermediate
Should Parents Use Hitting as a Form of Punishment - Ⅰ

Keywords:

What do you do when a child misbehaves? What if he does not listen? What if she breaks your house rules? All parents must face these questions at some time. All parents teach their children right a...


2023-08-17   Video
Photosynthesis- Part 2- Chemical Process

Keywords:

Photosynthesis is a set of chemical reactions in which light energy is converted to chemical energy. Light energy enables the movement of electrons from molecules that donate electrons ...


2023-08-16   Pre-Intermediate
Massive Open Online Courses, Part Two

Keywords:

Today, that "something" has more than one million students.Will many of these students do all of their college work by computer? If so, they would enter the professional world with course completion d...


2023-08-14   Pre-Intermediate
Massive Open Online Courses, Part One

Keywords:

The movement toward education by computer is developing fast.Massive Open Online Courses, called MOOCs, are changing how people learn in many places.For years,people could receive study materials from...


2023-08-13   Video
Photosynthesis- Part 1- Overview

Keywords:

[SCRIBBLING] SPEAKER: Almost all life on Earth is solar powered.$#10320#$10320#$ Plants, algae, and some bacteria capture light energy from the sun and convert it to chemical energy in ...


使用须知 常见问题  

Copyright© 2015-2025 kuotuo Inc. All rights reserved  

粤ICP备12056166号-3 粤公网安备 44010602002199号

您的IP地址:3.238.117.130