大学英语视听说4全部答案

Unit1

Hello, everyone. Today I invite you to join me in an exploration off the causes of depression. There ate many factors involved, but I believe some deserve special attention.

Heredity certainly plays a role. .The tendency to develop depression may be inherited; there is evidence that this disorder may run in families.

Physiology is another factor related to depression. There may be changes or imbalances in chemicals which transmit information in the brain called neurotransmitters. Many modern antidepressant drugs attempt to increase levels of certain neurotransmitters so as to increase brain communication. While the causal relationship is unclear; it is known that antidepressant medications do reliever certain symptoms of depression.

Researchers also study psychological factors. They include the complex development of one’s personality and how one has learned to cope with external environmental factors, such as stress. It is freeqently observed that low self-esteem and self-defeating thinking are connected with depression. While it is not clear which is the cause and which is the effect, it is known that sufferers who are able to make corrections to their thinking patterns can show improved mood and self-esteem.

Another factor causing depression is one’s early experiences. Events such as the death of a parent, the divorce of the parents, neglect, chronic illness, and severe physical abuse can also increase the likelihood of depression later in life.

Some present experiences may also lead to depression. Job loss, financial difficulties, long periods of unemployment, the loss of a spouse or other family member, or other painful events may trigger depression. Long-term stress at home, work, or school can also be involved.

It is worth nothing that those living with someone suffering from \depression experience increased anxiety which adds to the possibility of their also becoming depressed.

Unit2

Greetings, ladies and gentlemen. I hope you’ll find it interesting how to be fashionable without spending too much money.

Sure, some famous stars always look stylish. They have unlimited clothing budgets that put the latest looks at their fingertips! But you can also look amazing without spending lots of money on your wardrobes. Simple try the following suggestions on for size.

First, you should make seasonal purchases; that is, you should buy winter coats, leather jackets, bathing suits, ad summer dress at the end of the season. Y ou’ll get major discounts as you stock up for the next year.

If you want clothes to wear right now, you can go to discount stores. They may not be the place to buy an expensive evening dress, but they’re perfect for buying things like T-shirts

There is yet another cheap way of you to buy stylish clothes. Many department stores have a store brand. It means they offer current styles but are much cheaper than