شرکت در آزمون آنلاین انگلیسی 3 - انگلیسی 3 | آزمون شماره 11006

The displaced Khorramshahr children left their home after the war and were staying with a ......... family in Tehran that cared for them with love and kindness.

I know how sad and depressed he is these days, but if he quits his family, it will only ……… his problems.

     .is the use of two languages , either by an individual speaker or by a community of a speakers ................................. 

.When giving a speech, it's important to ....................... your information so that the audience can easily understand what you are trying to say

It is easy to recognize the environmental advantages of using alternative and renewable forms of energy. Still, we must also be aware of the disadvantages.

One disadvantage of renewable energy is that it is difficult to generate the quantities of electricity that are as large as those produced by traditional fossil fuel generators. It means that we need to reduce the amount of energy we use or build more energy facilities. It also indicates that the best solution to our energy problems may be to have a balance of many different power sources.

Another disadvantage of renewable energy sources is the reliability of supply. Renewable energy often relies on the weather as its source of power. Hydro generators need rain to fill dams to supply flowing water. Wind turbines need wind to turn the blades, and solar collectors need clear skies and sunshine to collect heat and make electricity. When these resources are unavailable, the capacity to produce energy from them will decrease. The current cost of renewable energy technology is also far more than traditional fossil fuel generation. It is because it is a new technology and, as such, has a considerable capital cost.

The underlined word “alternative” in the passage is closest in meaning to … .