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ting shells? 要點提示 :談論你一直做某件事情多久了。 :inline , skating , marathon , skate , stamp , shell , collect , snow globe , since , for ,be interested in , run out of , by the way , a pair of , go native , three and a half years , do one’ s best , go together. :How long have you been skating? I’ ve been skating since nine o’ clock. When did you start skating? I started skating at nine o’ clock. Students are skating at the Hilltop .語言結(jié)構: (1)現(xiàn)在完成進行時:①構成: have/ has been+現(xiàn)在分詞。這個動作可能仍然在進行,也可能停止了一會兒。 對 for或 since引起的時間狀語用 howlong 提問。因此,只要有表示過去的時間,就不能用現(xiàn)在完成進行時 。 例: He is skating now.現(xiàn)在他正在滑冰。 基礎卷 (20分鐘 ) 一、用 since或 for填空 1. The child has been crying __________ her mother left. 答案 :since 2. We have been playing tennis__________five years. 答案 :for 3. The girl skated ____________ two hours. 答案 :for 4. It has been raining ____________ a whole day. 答案 :for 5. We have known each other__________ we were children. 答案 :since 表示一段延續(xù)的時間常用 since或 for, since后接一個時間的“點”,而 for后接時間的“段”。孩子的媽媽離開的時間在時間軸上是一個點,從這一點起到現(xiàn)在,一直在哭,用 since?”表示。 五年是這一段時間的總數(shù),所以用“ for?”來表示。理發(fā)表示為“讓別人來剪我的頭發(fā)”,即“ have my hair cut”,這里的 cut是過去分詞。 2. We have been skating ________(二個半小時 ). 答案 :for two and a half hours 解題點撥:二個半小時表示 為“ two and a half hours”,又如:二年半表示為“ two and a half years”,也可寫作:“ two years and and a half”。that是個關系代詞,引導一個定語從句,修飾名詞 present。 4 _______(多久 )did you sleep last night? 答案 :How long 解題點撥:對一段連續(xù)的時間提問用 how long。 四、單項選擇 ( ) 1. —— ________have you been skating? —— For about an hour. A. When B. Where C. How long 答案 :C 解題點撥:對一段時間提問用 how long. ( ) 2.—— ________ did you start to play tennis? —— When I was eleven. A. When B. Where C. How long 答 案 :A 解題點撥:你什么時候開始打網(wǎng)球的 ?疑問詞用 when。 ( ) 4. I have a big snow globe __________ polar bears in it. A. in B. on C. with 答案 :C 解題點撥: wtth在這里是表示“具有??特征”。 提高卷 (20分鐘 ) 一 、根據(jù)句意和首字母完成單詞 1. He isn’t at school today , p ________ he is ill. 答案: probably/perhaps 2. Pandas like eating b________ 答案: bamboos 3. Our town has greatly changed r________ 答案: recently 4. Can you d _________ what he looks like? 答案: describe 5. Please t________ the soup and see if it has enough salt. 答案: taste 二、用所給詞的正確形式填空 1. The football match ________(go) for fifteen minutes. 答案: has been going 解題點撥:足球賽進行了 15分鐘,表示動作在現(xiàn)在以前的一段時間里一直在進行,共計 15分鐘。 2. My hobby is __________(collect) all kinds of stones(石頭 ). 答 案: collecting/to collect 解題點撥:本題 is后面接表語,可用動名詞短語,也可用不定式短語來表示。另外,這里也可以用現(xiàn)在完成時,即 have/has+現(xiàn)在分詞的結(jié)構來表示。 5. Would you like to visit the Summer Palace if the rain ______(stop) tomorrow? 答案: stops 解題點撥:參看本大題第 4題的點撥。 ( )2. I’ve____________here all afternoon. A. sat B. sit C. sitting D. been sitting 答案: D ( )3. He has been____________for his credit card for an hour. A. looks B. looked. C. looking D. to look 答案: C 解題點撥: 2— 3.用現(xiàn)在完成進行時表示直到現(xiàn)在一直干某事。本句意為“ Mike學到了許多關于網(wǎng)絡的知識,我也是”。如果主語換成 she,則要寫成 so does she。因為主句是一般現(xiàn)在時,賓語從句 可以用需要的任何時態(tài),因時間狀語是 next week,所以要用一般將來時。第二句 if引導的是條件狀語從句“如果??”,在這種從句中,只能用一般現(xiàn)在時來表示將來的動作。所以答案選 C。 ( ) 7. The teacher told us yesterday that December 25 ________ Christmas Day. A. is B. was C. has been D. will be 答案: A 解題點撥:一般情況下,主句是一般過去時,賓語從句要用過去的時態(tài)。 ( ) 8. My mom says___________I have to stop , because we have run out of room to store them. A. that B. where C. if D. what 答案: A 解題 點撥:根據(jù)句意;本句的關聯(lián)詞選 that。 ( ) 10. My aunt arrived here _____________ a warm spring morning. A. in B. at C. on D. by 答案: C 解題點撥:表示“在具體某一天的早上”要用介詞 on。 ( ) 12. It’ s time for supper now. Let’s________it. A. stop having