A. Yawning reduces the risk of brain disease. B. Stopping yawning halfway harms the human brain. C. It’s better to stay indoors more if they yawn a lot. D. Yawning often means something is wrong with the brain. 4. What do we learn from the article? A. People yawn more in cold...
And while remediating former waste sites might limit development in natural areas, more development always means more consumption and more waste that ends up in a landfill somewhere else. At 27 million tons, plastics accounted for just under 19 percent of new landfill waste in 2018, according to...
This stops a snake from breathing easily. A snake’s unique physiology means that it can connect the end of its windpipe (the glottis) directly to its nose to breathe easier, but when the nose is blocked, the snake can’t breathe. So, it opens its mouth to breathe instead. ...
A.people tend to develop many diseases B.lack of the vitamins causes disease C.vitamins help chemical changes within cells D.it is common for people to get no enough vitamins3. Doctor Lind proved eating fruits can prevent scurvy by means of ___. A.comparing B.analyzing C.surveying D.ques...
57.The underline word"frigid"in paragraph 3probably means___.A.darkB.clearC.coldD.nice58.In paragraph 4,why did Annie's father stop her suddenly?___A.He noticed a screech owl.B.He heard somebody crying.C.He sensed they were in danger.D.He reminded her to take down note.59.How ...
Some experts think that yawning may have developed as a means of communication. It may, for example, be a way of signalling to others that it's important to remain alert and stay awake in a certain situation. Another theory is that our early ancestors used it as part of their social ...
2. The underline word “contagious” probably means ___ in Chinese in this passage. A.文明的 B.常见的 C.有传染性的 D.可控制的3. Which of the following is Not True according to the passage? A.We yawn more to take in more air. B.We can’t control ourselves when we yawn. C.Two...
B. we yawn more frequently when we have a cold C. emotions are connected with states of internal responses D. the change of blood pressure is not linked with the change of emotions 2. The underlined word "synchronise" in paragraph 4 means "___". A....
as a means of spreading the word about new music, as well as occasionally adding some band to the ProgArchives database. In the meantime, while we wait for the first 2017 releases, I hope my readers will discover at least one new band or solo artist by browsing my suggestions. Happy ...
A.why we cry when we are hurt B.why we cough when we suffer from a cold C.why we smile when we see someone else smile D.why we yawn when we see someone else stay up late 【2】The underlined word “triggered” in the third paragraph probably means “___”. A.set off B.cut...