2. Tenses Simple present simple future present perfect Simple past &e present progressive eg.①最后作者举例说明了IC的应用 Finally, the applications ofIc are illustrated with examples ②……被广泛地应用 于 has been widely used un … has found wide use in2. Tenses Simple present > simple future & present perfect > Simple past & present progressive Finally, the applications of IC are illustrated with examples. ② ··· ··· 被广泛地应用 于 ··· ··· eg. ①最后作者举例说明了IC的应用。 … has been widely used in … … has found wide use in …