15．I've come to learn that the best time to debate with family members is               they have food in their mouths．（　�。�
A．howB．whenC．whetherD．that

分析 我已經(jīng)認(rèn)識到與家庭成員辯論的最佳時間是他們嘴里在吃東西的時候．

解答 答案是B．
本題考查表語從句中的引導(dǎo)詞；題干中is后面的表語從句；how 表示方式"如何"；when表示"時間"； whether是否；that在名詞性從句中不擔(dān)任成分、無意義；根據(jù)上文the best time和句意可知，最佳時間是家人在吃東西的"時候"，故答案是B．

點評 名詞性從句考查的關(guān)鍵是連接詞的選用和語序，因此，我們首先要搞清從句的性質(zhì)，掌握各連接詞的用法，在此基礎(chǔ)上判斷．此外，關(guān)注名詞性從句用陳述語序．

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科目：高中英語 來源： 題型：閱讀理解

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Seattle is a fantastic place to photograph．Spend the weekend taking photos of the historic Pike Place Market，get a new angle on the Space Needle，and photograph harbor views on Bainbridge Island．
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With hotelWithout hotel
$2，020$1，395
Meals noted in the plan are included in both options（with and without hotel）
Dates
Jul 11-14，2013     Aug 08-11，2013       Sep 26-29，2013
Contact Information
For questions about this workshop，please call 1-886-797-4686．Or you can visit the website：http://www．nationalgeographicexpeditions．com．
 
36．The purpose in joining the workshop is toB． 
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