A deep freeze this week in the Lone Star state, which relies on electricity to heat many homes, is causing power demand to skyrocket. At the same time, natural gas, coal, wind and nuclear facilities in Texas have been knocked offline by the unthinkably low temperatures.     “The extreme cold is causing the entire system to freeze up,” said Jason Bordoff, director of Columbia University’s Center on Global Energy Policy. “All sources of energy are underperforming in the extreme cold because they’re not designed to handle these unusual conditions.”     The ripple effects are being felt around the nation as Texas’ prolific oil-and-gas industry stumbles.      It’s striking that these power outages are happening in a state with abundant energy resources. Texas produces more electricity than... Ver mais

The expression “foot the bill” means:

Turn the following sentence into Reported Speech: The doctor said to the nurse: Where is our patient?

Which assertion does not match the masculine and feminine pair of the noun?

Based on the text, judge the items below.

“can” in “54 elevators can get you to the top” (line 16) expresses possibility.

The linking expression “In addition” (lines 31- 32) can be used as a synonym for

After reading the first paragraph, it is correct to say teaching English is

Match the words in the first column below with their respective synonyms, in the second column, according to the meaning they have in the text.

( ) reliable (l. 15)

( ) nefarious (l. 19)

( ) overall (l. 25)

(1) dubious

(2) evil

(3) dependable

(4) generally

(5) untrustworthy

(6) global

The sequence that adequately fills in the parentheses, from top to bottom, is

Select the adequate translation of the word As (l. 20).

In the fragment from the second paragraph “Poverty also pushes up fire risk”, the expression in bold means