【正文】 Ai Yanling is a chemistry teacher.（名詞）He is our friend.（代詞）We belong to the third world.（數(shù)詞）He was advised to teach the lazy boy a lesson.（形容詞）The man over there is my old friend.（副詞）The woman with a baby in her arms is my sister.（介詞）The boys playing football are in Cla2.（現(xiàn)在分詞）The trees planted last year are growing well now.（過去分詞）I have an idea to do it well.（不定式）You should do everything that I do.（定語從句）七、主語（subject）： 句子說明的人或事物。We elected him monitor.（名詞）We all think it a pity that she didn’t e here.（名）We will make them happy.（形容詞）We found nobody in.（副詞）please make yourself at home.（介詞短語）Don’t let him do that.（省to不定式）His father advised him to teach the lazy boy a lesson.（帶to不定式）Don’t keep the lights burning.（現(xiàn)在分詞）I’ll have my bike repaired.（過去分詞）五、主補(bǔ)：對主語的補(bǔ)充。We study is 、表語（predicative）：系動(dòng)詞之后的成分，表示主語的性質(zhì)、狀態(tài)和特征。表示時(shí)間、地點(diǎn)、原因、目的、結(jié)果、程度、條件、方式和讓步。如：It’s very kind of you to help me with the work.=You are kind to help seemed selfish of him not to share his dictionary with others.=He seemed selfish not to share his dictionary with + be +名詞詞組 + 動(dòng)詞不定式，如： It is not a good habit to stay up too + be + 名詞或形容詞 + 動(dòng)名詞，這類名詞和形容詞常常是：good, no good, no use, a waste of, useless, senseless等，如：It’s a waste of time talking to her any is no use arguing about the matter with + take(sb.)+ 時(shí)間（金錢）+ 動(dòng)詞不定式，如：It took the workers almost three years to finish building the will take a whole day to get to the top of the mountain on ： is generally considered unwise to give a child he or she wants.(NMET 1997) fact is a hard job for the police to keep order in an important football match.(2001 上海) a fact that English is being accepted as an international language.(NMET1995) necessary to take off our shoes when we enter the lab?(MET88) will take you a lot of time to find him in the is no use his _________ there, the situation is hopeless go be going gone is never too late to learn, ________? it ’t it it ’t it is known to all that Shenzhou VI Launched is reported in the newspaper, the Earthquake in east China39。t there careful with your they go for a walk after supper yesterday evening? an interesting story(it is)!或How interesting the story is! often does this magazine e out? they brightly the moon is shining! is always encouraging us to speak English in class?it作形式主語常見句式動(dòng)詞不定式，動(dòng)名詞或主語從句作主語時(shí)，通常把它們放在謂語動(dòng)詞前，而用it作形式主語，放到句首，常見句型有： + be + 形容詞+主語從句，如：It is uncertain whether he can e to Jenny’s birthday party or + be + 名詞詞組 + 主語從句，這類名詞有：a fact, a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football remains a question whether he will e or + be + 過去分詞 + 主語從句，這類過去分詞有：announced, believed, expected, hoped, decided, reported, said, shown等，如：It is reported that 16 people were killed in the is not decided who will give the operation to the + 不及物動(dòng)詞(seem, appear, happen等)+ 主語從句, 這類不及物動(dòng)詞有：appear, happen, seem等，如： It seemed that he didn’t tell the happened that I was out when he + be + 形容詞 + for sb.）+ 動(dòng)詞不定式這類句型常用形容詞easy, difficult, hard, important, possible，wise等作表語，有時(shí)候?yàn)榱藦?qiáng)調(diào)不定式動(dòng)作的執(zhí)行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign is unwise to give the children whatever they ：easy, difficult, hard, important, possible，wise + be + 形容詞 + of sb.+ 動(dòng)詞不定式，這類形容詞常是表示心理品質(zhì),性格特征的形容詞，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。 is the time of the year for rive harvest, so every day I work from dawn until ： dares to tell the truth.（改為否定句） have lived here for more than ten years.（對畫線部分提問） will be a sports meet at the end of this month, ____________?（完成反意疑問） must be careful with your pronunciation.（改為祈使句） went for a walk afte