You may find out more information about Australian natives through the Internet _______.
A．if possibleB．if necessary
C．if anythingD．if they are necessary
B

試題分析：考查狀語從句的省略。當(dāng)狀語從句的主語與主句的主語一致，且狀語從句中有系動詞be的時(shí)候，可以把狀語從句的主語和be動詞一起省略。如果狀語從句中有it is的時(shí)候，it is 也可以省略。本題就是在if后面省略了it is；句意：如果必要，請可以從網(wǎng)絡(luò)上查找一些與澳大利亞有關(guān)的信息。故B正確。
點(diǎn)評：狀語從句的省略是高考的必考點(diǎn)，當(dāng)狀語從句的主語與主句的主語一致，且狀語從句中有系動詞be的時(shí)候，可以把狀語從句的主語和be動詞一起省略。如果狀語從句中有it is的時(shí)候，it is 也可以省略。
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