Listen to people ordering food and drinks in a café to practise and improve your listening skills. Do the preparation task first. Then listen to the audio and do the exercises. Preparation Transcript Task 1 Task 2
Meeting people at a dinner
Listen to introductions at a dinner party to practise and improve your listening skills. Do the preparation task first. Then listen to the audio and do the exercises. Preparation Transcript Task 1 Task 2
Hydrocarbons
In this section, you will review the structure and names of hydrocarbons. As you may recall from your previous chemistry studies, hydrocarbons are the simplest type of organic compound. Hydrocarbons are composedentirely of carbon and hydrogen atoms, and are widely used as fuels. Gasoline, propane, and natural gas are common examples of hydrocarbons. Because they […]
Challenges at work
Listen to four people talking about different business challenges to practise and improve your listening skills. Do the preparation task first. Then listen to the audio and do the exercises. Preparation Transcript Task 1 Task 2
Joining a gym
Listen to the conversation about joining a gym to practise and improve your listening skills. Do the preparation task first. Then listen to the audio and do the exercises. Preparation Transcript Task 1 Task 2
Chatting about a series
Listen to two friends chatting about a television series to practise and improve your listening skills. Do the preparation task first. Then listen to the audio and do the exercises. Preparation Transcript Task 1 Task 2
Leaving a message
Do the preparation task first. Then listen to the audio and do the exercises. Listen to someone leaving a message to practise and improve your listening skills. Preparation Transcript Task 1 Task 2
Meeting other students
Listen to a group of new students meeting for the first time to practise and improve your listening skills. Do the preparation task first. Then listen to the audio and do the exercises. Preparation Transcript Task 1 Task 2
Biological Macromolecules and Their Subunits
The atoms of four elements make up roughly 99 percent of the mass of most cells: hydrogen, nitrogen, carbon, and oxygen. With only a few exceptions, molecules that contain carbon atoms are called organic compounds. There are millions of different organic compounds. Nearly all organic compounds contain hydrogen as well as carbon, and most of […]