crooked teeth. Don’t worry. Here are some ways to keep your teeth healthy. Brush at least twice...? Bones? It’s your teeth! There is a special thing called enamel (牙釉质) in teeth. It is the hardest thing ……

. Retainers keep your teeth from wandering back to their original places. Your retainer will be specially..., so you need to keep your teeth especially clean while you have them on. You’ll want to brush after ……

如果你不想有个黑乎乎的肺，请不要靠近香烟。What are some of the bad things smoking can do to people's health... types ofcancer(癌症) from smoking.Here are some other health problems that come from smoking: hearing ……

with the plaque problem. It can also keep your teeth strong and healthy.6. Brushing teeth well twice a day with toothpaste (牙膏) can deal with the plaque problem. It can also keep your teeth strong ……

wait at least half an hour after each meal to brush your teeth. The combination of food acid... drinks such as tea, coke and coffee can stain your teeth, affecting their looks. White teeth ……

also turn your teeth yellow. Of course, yellow teeth don’t actually harm your health, but can you... an eye on you while you sit at the front of the class. It can make students very uncomfortable ……

A good set of teeth boosts your confidence and brightens your smile, but proper dental care goes... you the ultimate drill to take care of your teeth. Choose the right toothbrush Toothbrushes ……

keep an eye on 照看，相当于look after。Keep/have your eye on sb则指“密切注意某人，严密监视某人”，尤指担心对方会犯错。Will you keep an eye on my house until I get back?在我回来之前你能帮我照看我的房子吗？ ……

ARE you curious about the inner workings of your mouth? Well, an invention that came out on May 19... that users can keep track (记录) of the progress of their oral (口腔的) health.“You can see it live,” Kohler ……

is NOT a good way to keep teeth healthy? A. Make your teeth straight with braces. B. Brush your teeth twice... an eye on the... (P4-5)Choose the best answer:1. What is the strongest part in the human body ……

to do a health check on the teeth of Elvis, a crocodile. Be careful!Keepers in an Australian zoo have a very dangerous task (任务). They have to do a health check on the teeth of Elvis, a crocodile ……

a health problem not related to the eye that could be diagnosed by an eye examination. Diabetes (糖尿...YOU might think an eye test only detects (检测) eye problems, right?The truth is that an eye test can ……

to keep your teeth clean. You’ll have to stay away from some foods that are problems for braces...;Life with bracesBraces act like magnets (磁体) for food, so you need to keep your teeth clean. You&rsquo ……

cold things. TUCHONGWant to have a cold drink during summer? “Ouch!” Suddenly your teeth begin to ache. If eating ice cream or drinking cold drinks makes your teeth hurt, it could be a kind ……

all, “If you don’t floss, you only clean 60 percent of your teeth’s surfaces,” US dentist Andrew...’s leading dental care brands, you should 1) slide the floss gently up and down between your teeth instead ……