【正文】
(2)Who left me these flowers is not clear to me.(3)It is obvious that students should prepare well for their future.如何能夠找到一個(gè)合適的解決辦法,在保證環(huán)境安全的同時(shí),生產(chǎn)足夠的糧食,是一個(gè)需要我們研究的重要課題。參考答案 Part Ⅰ Observe and analyseActivity 2SentenceStructureFunctionLeadingwordSentence 1at the beginning of the whole sentence,beginning with “what”act as subjectwhatSentence 2at the beginning of the whole sentence,beginning with “how” act as subjecthowSentence 3at the beginning of the whole sentence,beginning with “whether”act as subjectwhetherSentence 4at the end of the whole sentence,beginning with “that”act as subjectthatSentence 5at the beginning of the whole sentence,beginning with “what”act as subjectwhat Activity 3 (2)It is well known that agriculture is the foundation of our country.Part Ⅱ PracticeActivity 1(1)What Yuan Longping really cared about was not money or celebrity.3. team will win the match is still unknown.Part Ⅱ PracticeActivity 1 Find and mark the subject clauses in the sentences and then state their functions and leading words italicised.(1)What Yuan Longping really cared about was not money or celebrity.(2)It surprised the whole world that Yuan Longping had realised his dream of developing seawater rice.(3)How he did the experiment was puzzling to others.(4)When the sports meet will be held hasn??t been decided yet.(5)It remains a mystery where he has gone for further study.Activity 2 Match the sentence parts,and then translate the p