Question

17．如果你不隨身帶張地圖，會(huì)迷路的．You'll get lost if you don't take a map with you．．

Answer 1

分析 You'll get lost if you don't take a map with you．

解答 答案：You'll get lost if you don't take a map with you．結(jié)合句意可知用if表示如果，引導(dǎo)的條件狀語(yǔ)從句，遵循主將從現(xiàn)的規(guī)則，主句主語(yǔ)you，get lost迷路，故You'll get lost，從句主語(yǔ)you，take sth with sb 隨身帶著…，借助于助動(dòng)詞do構(gòu)成否定，故答案是You'll get lost if you don't take a map with you．

點(diǎn)評(píng) if表示如果，引導(dǎo)的條件狀語(yǔ)從句1、主將從現(xiàn) （主句為一般將來(lái)時(shí)，從句為一般現(xiàn)在時(shí)）；
eg：If it rains（從句），I will stay at home（主句）．
=I will stay at home if it rains．
2、主句含有情態(tài)動(dòng)詞 （must、may、can etc．）從句為一般現(xiàn)在時(shí)；
eg：If you drive too fast，you may have an accident．
=You may have an accident if you drive too fast
3、主句為祈使句，從句要用一般現(xiàn)在時(shí)態(tài)；
eg：Don't play computer games if you don't finish your homework．