反義短語at last用法at first是副詞短語,強調(diào)在時間上居前面,與at last相對應。例如:① This may seem like a difficult word at first,but it can be very useful to understand.剛開始,這似乎是個難詞,但是理解了會非常有用。② At first I didnt like him but now I d...[繼續(xù)閱讀]

    用法at home是副詞短語,在句中可以作狀語、賓語補足語或表語。at和home之間通常不加任何詞。例如:① Hes left the key at home.他把鑰匙放在家里了。② Is there anyone at home?有人在家嗎?③ Please make yourselves feel at home.請大家隨便一點,不要拘...[繼續(xù)閱讀]

    反義短語at most用法at least是副詞短語,與at the least相當,用于表示某物的一些小的優(yōu)點。at most表示“至多;充其量”之意,相當于at the most。at least和at most在句中作插入語,也可以放在數(shù)字的前面。例如:① The food wasnt good, but at least it wa...[繼續(xù)閱讀]

    近義短語at this moment　at this time　during this period of time用法at present是表示時間的短語,用于現(xiàn)在進行時態(tài)。在句中作時間狀語,放在句首或句末。at present與at this time,at this moment,during this period of time,now意思相近,可以互換。例如:① Shes...[繼續(xù)閱讀]

    用法at the age of中的at是介詞,表示時間點,強調(diào)某一時間的情況。該短語還可以用其他方式表達,如:at the age of twelve(在十二歲時),與at twelve(years old) 和when sb. was twelve (years old)相當。例如:① He was very clever and at the age of seventeen he went to ...[繼續(xù)閱讀]

    用法at the end of是介詞短語,其后接不同的詞,含義不同。(1)at the end of+時間,指年、月、日、世紀等時間點的末尾。例如:① Well have an exam in English at the end of January.一月底我們要參加英語考試。② At the end of the concert,Eric sang a song in Chi...[繼續(xù)閱讀]

    近義短語right now用法at the moment是介詞短語,用于現(xiàn)在時態(tài),表示“在此刻”之意;用于過去時態(tài),表示“在那時”之意,與at that time相當。例如:① The weather is pretty good at the moment/right now/now.現(xiàn)在/此刻天氣很好。 ② At the moment/At that time I...[繼續(xù)閱讀]

    用法at the same time是介詞短語,表示兩個或多個動作同時發(fā)生。作狀語,通常放在句末。例如:① Dont do your homework and watch TV at the same time.不要同時又做作業(yè)又看電視。② My father and I got home at the same time yesterday.昨天我爸爸和我同時到家。...[繼續(xù)閱讀]

    用法at this time of year是介詞短語,year前面沒有冠詞。year還可以換作day或month。例如:① The weather here is very different from that in Australia at this time of year.每年這時這里的天氣與澳大利亞的大不相同。② Many stores sell mooncakes at this time of year...[繼續(xù)閱讀]

    近義短語from time to time用法at times是介詞短語,表示頻率,和具體時間無關。其中的times表示某個時間內(nèi)的不同時刻,故用復數(shù)形式,不能用單數(shù)形式。at times與from time to time和sometimes的意思相同,在句中可以互換,只是at times和from time to tim...[繼續(xù)閱讀]