中学英语单词用法总结学习精编tooth和top和total等
tooth  (pl. teeth)   [tuːθ]
n牙；牙齿. （pl. teeth）
I went to my dentist to have a tooth taken out.我去找牙医拔了一颗牙。         

Toothache   ['tuːθeɪk]
n.牙痛
I have got toothache, so I must go to a dentist.我牙疼，必须去看牙医。
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top  [tɒp]
n. [C] 顶部，（）物体的）上面
The mountain tops are covered with snow.白雪覆盖着山顶。
She feared for the little boy when she saw him at the top of the tree.她看到那小男孩在树顶上时，着实替他捏了一把汗。[ at the top of处在……的顶部，居于……顶部〕
短语：1. top of sth最高的或最重要的级别或地位
      2. at the top of the tree 居于行业的最高地位
      3. at the top of one’s voice以最大的嗓音
      4. from top to toe 从头到脚
      5. on top of sth/sb在某人/物的上方

total  ['təʊt(ə)l]
adj. ①总数的，总括的;②完全的，全然的‖n. [ C ]合计，总计
The total cost will be 126 dollars.总的费用要126美元。
Their expenses reached a total of 1 , 000 pounds.他们的花费总计一千英镑。       
短语：1.in total 总共

Whoever has ever been to a Chinese restaurant may have experienced____61____unique set of utensils(餐具). Instead of a fork, you may have been handed two long____62____(stick). What are we talking about? Chopsticks, of course! Experts believe they originated in China. Chopsticks____63____(be)around for over 5, 000 years. For example, a pair of bronzè chopsticks from 1200 В.C. has been found in China. Experts believe the earliest chopsticks were likely used to stir a fire or serve food during____64____(cook).
Chopsticks you get in a Chinese restaurant are____65____(usual)made of wood. However, they are also commonly made of bamboo. You can also find chopsticks____66____(make)out of metal and bone. In China, chopsticks are called kuaizi,____67____is a word made up of characters meaning quick and “bamboo”. The English word “chopsticks” may come____68____a common phrase that means “quickly chop”.
Chopsticks____69____(mean) to be useful but difficult to handle. They are held by the main hand and used to pick up food. It takes a bit of practice_____70_____(feel)comfortable when you use chopsticks to eat. With a little work, you'll be eating with chopsticks in no time.

Invisible People
If you have the time, check out an amazing YouTube channel that I recently found ___41___ (call)"invisible people". It's a channel with ___42___ (hundred) of interviews of homeless people who share their story and ___43___ they survive day to day.
The man who operates the channel ___44___ (be) formerly homeless and has devoted his life to helping ___45___ homeless. The name “invisible people" certainly suits the channel well. For indeed there are so many “invisible" beings who are suffering every day, both humans and animals, and yet our ___46___ ( social) either pays little for people to ___47___ ( cruel) treat and kill animals, or completely ignores those who are in desperate need.
Occasionally, someone who ___48___ (watch) the videos on that channel is near one of the interviewed people and is able ___49___ (help) in some way. Some of the videos are truly heartbreaking but it's important to see what people go through. We can't turn a blind eye or treat them as if they’re invisible. We cannot behave as it's been said, “Worship a homeless man on Sunday, and then ignore a homeless man ____50____ Monday.”

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