17．It is vital to       to teenagers the simple fact that being addicted to the Internet will to some extent do harm to both mental and physical health．（　　）
A．get acrossB．get throughC．get downD．get over

分析 向青少年傳達(dá)沉迷于網(wǎng)絡(luò)將在很大程度上有害于他們的身心健康這一簡單的事實(shí)是極為重要的．

解答 答案為A．
get across"橫過（馬路，河等），傳達(dá)，理解；get through"穿過，完成，熬過"；get down"下來，彎下，寫下"；get over"克服，（使）渡過，走完，傳送"． 本句譯過來的框架為"向青少年傳達(dá)…這一簡單的事實(shí)是極為重要的"． 
故選 A

點(diǎn)評 本題的難點(diǎn)在于句子較長，并且含有較多的語法，例如：形式主語it，真正的主語是to       to teenagers the simple fact，緊接著是一個(gè)that引導(dǎo)的定語從句，而且從句中的主語是一個(gè)分詞短語being addicted to the Internet，所以做此類題時(shí)，縷清思路是很關(guān)鍵的．該句的框架為"向青少年傳達(dá)…這一簡單的事實(shí)是極為重要的"．

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