一般現(xiàn)在時(shí)用法(共4頁).doc
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1、精選優(yōu)質(zhì)文檔-傾情為你奉上it 4一般現(xiàn)在時(shí)【概念引入】對(duì)于口腔保健,相信大家首先想到的就是每天必做的“刷牙運(yùn)動(dòng)”。但是除此以外,你還想到其他的口腔衛(wèi)生習(xí)慣嗎?看完下面這篇關(guān)于口腔清潔的短文,大家一定會(huì)更全面地了解口腔保健知識(shí):A set of healthy teeth attracts people to your smile. Good oral hygiene helps us keep our teeth and mouth healthy. So work on these oral habits now:Brush your teeth at least twice a day,
2、 and spend at least 2 to 3 minutes brushing your teeth. Use a soft-bristle toothbrush that will not scratch your gums. Replace the toothbrush every 3 to 4 months.Floss your teeth once a day. Proper flossing removes the plaque that grows in between your teeth that brushing cannot reach. Flossing also
3、 improves blood circulation in the gums.Clean your tongue at least once a day. It only takes 10 to 15 seconds each time.Finally, visit your dentist once in every 6 months. He will clean your teeth more thoroughly so that your teeth will stay cleaner and last longer. Dental checkups can detect early
4、signs of oral health problems so that proper treatment can be given to prevent further damage to your teeth.【點(diǎn)睛】本文頻繁地使用一般現(xiàn)在時(shí)來介紹“口腔清潔運(yùn)動(dòng)”。請(qǐng)注意上文中的句子:Brush your teeth at least twice a day.Replace the toothbrush every 3 to 4 months.Floss your teeth once a day.Clean your tongue at least once a day.Visit y
5、our dentist once in every 6 months.這些都是表示日常的重復(fù)活動(dòng),所以要用一般現(xiàn)在時(shí)態(tài)。【譯文】當(dāng)你微笑的時(shí)候,一口健康的牙齒會(huì)使你更加有魅力。良好的口腔衛(wèi)生幫我們保持牙齒和口腔健康。所以,請(qǐng)養(yǎng)成下面這些口腔保健習(xí)慣吧!每天至少刷兩次牙,每次至少刷兩到三分鐘。使用刷毛柔軟且不會(huì)碰到牙齦的牙刷刷牙。記住,每隔三四個(gè)月?lián)Q一次牙刷。每天用牙線清潔一遍你的牙齒。正確地使用牙線可以去除長(zhǎng)在你牙縫中的牙斑,刷牙時(shí)刷不到這些牙斑。牙線還可以促進(jìn)牙齦的血液循環(huán)。每天至少清潔一次舌頭,一次10到15秒。最后,每隔半年看一次牙醫(yī)。他會(huì)更加徹底地為你洗牙,這樣你的牙齒將更加清潔,且能
6、保持更長(zhǎng)時(shí)間。牙科檢查能在早期觀察到口腔問題的征兆,這樣可以進(jìn)行正確的治療,防止牙齒受到進(jìn)一步的傷害?!居梅ㄖv解】一、一般現(xiàn)在時(shí)的用法1. 表示經(jīng)常發(fā)生的動(dòng)作或存在的狀態(tài),常用頻度副詞sometimes, often, always, usually, seldom, every morning, twice a week等及時(shí)間副詞every day / night / week / month / year, in the morning, in the afternoon, in the evening, at nigh等引導(dǎo)。例如: He often stays up late. 他常
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