2024/4/162021年秋人教版九年級全冊英語課件：Unit10GrammarFocusbesupposedto的用法一、besupposedto的不同用法1．besupposedto...其中to是動詞不定式符號，其后要跟動詞原形。當besupposedto...的主語是“人”時，意為“應該……；被期望……”，它可以用來表示勸告、建議、義務、責任等，相當于情態動詞should。Everyoneissupposedtowearaseat-beltinacar.在汽車里的每個人都應該系安全帶。2．當besupposedto...的主語是“物”時，它表示“本應；本該”，用于表示“某事本應該發生而沒有發生”。Thetrainwassupposedtoarrivehalfanhourago.火車本該在半小時之前到達。3．besupposedto...的否定結構為benotsupposedto...，它常用于口語中，意為“不被許可；不應當”。Youarenotsupposedtosmokeonthebus.你不應該在公交車上抽煙。二、besupposedtodo和beexpectedtodo的區別1．besupposedtodo表示被期望或要求做某事，意為“應該”。相對于beexpectedtodo而言，主觀性強一些。它相當于情態動詞should。Youarenotsupposedtoarrivesolate.你不應該這么晚才到。2．beexpectedtodo意為“預料”，表示一種可能性。Sheisexpectedtobeagooddoctor.她有望成為一名好醫生。Theyareexpectedtomakeanannouncementlatertoday.預料他們今天晚些時候會宣布一項通告。“Itis＋adj.＋todosth.”句式的用法Itis＋adj.＋todosth.為固定句型，其中it是形式主語，動詞不定式為句子真正的主語。易混辨析：“Itis＋adj.＋(forsb.)todosth.”和“Itis＋adj.＋(ofsb.)todosth.”1．Itis＋adj.＋(forsb.)todosth.常用于表示事物的特征、特點，常用描述事物性質的形容詞，如easy,hard,difficult,interesting,important,impossible等。It'snoteasyforthemantosupportsuchabigfamily.養活這么一大家子人對這個男人來說不容易。2．Itis＋adj.＋(ofsb.)todosth.的句型常用于表示人物的性格、品德，常用表示主觀感情或態度的形容詞，如good,kind,nice,clever,foolish,right等。It'sverycleverofthelittlegirltothinkofagoodideatosolvetheproblem.那個小女孩想到個解決問題的好主意，真是聰明。______________________________________________________________

一、單項選擇。()1.Yourunclewassupposed________hereanhourago.

A．tobeB．tocomingC．togoD．togoing()2.Youareexpected________adiaryinEnglisheverydayifyouwanttoimproveyourwritingskills.A．keepB．keptC．keepingD．tokeepAD()3.It'snotproper________jeansandaT-shirttotheweddingparty.A．wearB．towearC．wearsD．wearing()4.Youare________totypequicklywhentalkingtoeachotheronQQ,sotheotherpersondoesn'tgetbored.A．suggestedB．supportedC．taughtD．supposedBD()5.Itisimportant________people________learnteamspirit.A．of;ofB．of;toC．for;toD．to;toC二、按要求改寫下列句子。6．Maryissupposedtowearadress.(改為一般疑問句并作肯定回答)—___Mary_______________wearadress?—Yes,_______．7．Heissupposedtobeanexpertinthisfield.(改為否定句)He___________________tobeanexpertinthisfield.8．Sheissupposedtoarriv