Your explanation is not at all clear. I find it . A.essentialB.awfulC.inside outD.confusing 题目和参考答案——青夏教育精英家教网—

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

What is a yawn（哈欠） and why do people yawn? A yawn is often associated with a person being tired． People yawn for many reasons including stress, boredom, emotion and overwork．

Have you noticed that yawning seems to be contagious （会传染的）? If one person yawns, this appears to cause another person to yawn．Researchers have found that 40-60% of people who see a picture of someone yawning will yawn themselves．

Some people think that yawning is rude and suggests that you are bored or uninterested．Maybe a yawn is a signal to a group that it’s time to go to sleep, or if someone yawns when they're bored, it may be a sign to change the topic of conversation． Animals of all types yawn．If you have a dog or cat, you've probably seen your pet yawn several times．Even some birds yawn such as cockatiel parrots, Adelie penguins and Emperor penguins．

Some of the scientific explanations of why we yawn claim it is caused by physical needs．One likely explana??tion is that the yawning reflex happens when our blood needs more oxygen．The deep breath helps supply the levels of oxygen in our blood． It is also thought that the same chemicals in our brain that affect our moods and emotions cause us to yawn．

Superstitions about yawning have been around for hundreds of years and can date back to the ancient Greeks．A common superstition says that a person must cover his or her mouth when yawning so that the soul does not escape through the mouth． Today most people do not believe these superstitions and know that a yawn is a physical reflex．

A．Did you yawn while reading this article?

B．Yawning is not limited to humans．

C．It will make you lose interest in your work．

D．But this is not always the cause for a yawn．

E．Even reading the word YAWN can make people yawn．

F．However, it doesn't mean that you need rest or relax??ation．

G．Other people believe that yawning is a sign that danger is near．

H．Another common theory is that a yawn helps regulate our body temperature．

---May I take your order now?

---_______.

A. No,I'm in trouble now

B.Yes, we obey orders

C. Yes, I'd like a dish of chicken

D.No, I don't have a choice of meat

Help or Not

Dear editor,

During last year's winter holiday, I went shopping with my grandmother. We saw several beggars. Some of them were disabled, which made me feel sad. Among them were old people, young people and even children! When I wanted to help them, my grandmother stopped me. She told me they were not worth showing mercy to because some beggars cheated people out of their money. Should I help them?

Yours,

Mary from Guangzhou

Dear Mary,

While I understand your grandmother’s point of view, I think that just because some beggars have cheated people, this doesn’t mean you should never help any beggars.

Showing mercy to people who are not as fortunate as us is one of the kindest things we can do. While some beggars may use dishonest means to get money, most beggars will not. Even those who use dishonest means are probably hungry for food and feel they have no choice but to cheat people. It is important to be careful for your own safety. But if you want to help, you don’t necessarily have to give it to beggars in the street.

Another way you can help is by donating money to the China Charity Federation. Visit its website at: www. china charity. cn.net.

18.From the grandmother’s point of view, we can learn that ________.

A. she has never helped the beggars.

B. she believes not all beggars are honest

C. she has surely been cheated by some beggars

D. she shows no pity for the poor

19. Mary felt sad for _______.

A. her grandmother B. the disabled beggars

C. the old people D. herself

20. The editor suggests that Mary should _______.

A. have her own mind B. follow her grandmother

C. do something for those unfortunate D. help the China Charity Federation

21. The underlined word “donating” probably means _______.

A. give out of kindness B. put into a business

C. earn through an organization D. give in return for some kindness

Tired? Bored? Hungry? And more miles left to go?

Help pass the time on your trip ： play a game ！

Everyone knows that a long bus ride can make even the most exciting field trip seem oring. When the bus is traveling a long distance to reach the cool field trip destination，it can eem like forever. What about when you are in the backseat waiting to reach Grandma ' s ouse? The road stretches like a rubber band for miles and miles. Here' s a way to beat the oad at its own game. Use what you have around you to play games with your family and riends. You can have fun while you travel ！

When you play “ Make Them LOOK ！ “，you need to_______

A. prepare a piece of paper with the alphabet on it

B. focus on the license plates of the running cars

C. know the traffic rules in Alaska and Hawaii

D. remember the alphabet you' ve seen

If a question in “ Straight Face" is successful, the person ” it" will feel______

A. funny B. happy C. confused D. hopeful

Who is the passage written for?

A. Students taking long trips. B. Businessmen travelling often.

C. Drivers going to other states. D. People learning to be humorous.