Read the passage and answer the questions.
Incredible Human Machine
People push their bodies to the limit in a variety of ways. Yet, when you consider that it takes as many as 100 muscles just to speak simple words, even everyday acts seem pretty impressive. This month, National Geographic takes a look at how our truly incredible bodies enable us to do the ordinary and the extraordinary in Incredible Human Machine.
When it comes to making music, the most impressive instrument might be the human vocal cords. These thin membranes are what enable speech and song. The vocal cords cover our throats just above the windpipe. As our breath passes through them, they open, close, and vibrate, creating the sounds that we hear. One person who puts his vocal cords to the test on a regular basis is Aerosmith's lead singer Steven Tyler. In Incredible Human Machine, the National Geographic Channel will examine his remarkable set of vocal cords in real time during a concert.
Yet, abilities such as speech and song can be damaged by injuries or diseases like brain cancer. In the recent past, brain cancer was an almost certain death sentence. Even when brain cancer could be treated, treating it often came with the high price of brain damage. Doctors now have the power to beat this disease while protecting the remarkable skills that make the human body so amazing. Incredible Human Machine lets you watch as doctors perform brain surgery while the patient is still awake to ensure that the power of speech is preserved.
From recovering from injuries to simply walking around, our bodies possess endless abilities. Whether we're breaking records or just hanging out, we rely on 100 trillion cells functioning properly to live our lives. Watch the National Geographic Channel's Incredible Human Machine to see how they all fit together to make us who we are.
Another way to say the phrase “functioning properly” in the fourth paragraph is ______.
happening constantlythinking quicklyworking wellmoving correctlyHướng dẫn giải:Một cách khác để nói cụm từ “hoạt động đúng” trong đoạn thứ tư là ______.
A. diễn ra liên tục
B. suy nghĩ nhanh chóng
C. làm việc tốt
D. di chuyển chính xác
=> functioning properly = working well
Đáp án cần chọn là: C
