... nhà lúc đó dơ quá. Mấy tuần rồi họ đã không lau chùi gì cả. C Hãy so sánh thì pastperfect ( I had done) với pastsimple (I did) “Was Tom at the party when you arrived?” “No, he had already ... ấy chưa đi máy bay./ Trước giờ anh ấy chưa bao giờ bay. B Had done (past perfect) là dạng quá khứ của have done (present perfect) . Hãy so sánh các câu sau: Who is that woman? I’ve never seen...
... trong quá khứ.S1 + PastPerfect + before + S2 + Simple Past EX: George had seen this movie before he went to bed last night.S1 + SimplePast + after + S2 + PastPerfect EX: George went ... PASTPERFECT TENSE (THÌ QUÁ KHỨ HOÀN THÀNH)I/ Use (Cách dùng) Past Perfect Tense được dùng để diễn tả:1. Một hành động xảy ra trước ... Perfect EX: George went to bed after he had seen this movie last night.S1 + PastPerfect + when + S2 + Simple Past EX: When I came back home yesterday, my friend had already been there. II/...
... same time in the past. Eg. Mark was reading a book and Tony was watching television.BE CAREFUL!!!!The past continuous and the pastsimple are often used together.The pastsimple interrupts ... action of the past continuous.Eg. I was watching television when my friend arrived.BE CAREFUL!!!!The past continuous and the pastsimple are often used together.The pastsimple interrupts ... Put the verbs in brackets into the past continuous or simple past: 1. Lisa _____________ (comb) her hair while she ____________(listen to) the news...
... FOCUS ON: pastperfect phrasal verbs The pastperfect is used to say that one thing in the past happened before another thing in the past: Mike said the wedding had fallen through. past earlier ... the past When I got to work, Mr. Toy for had already signed in. past earlier in the past The pastperfect is formed with had and the past participle of the verb: present: He wakes up. past: ... the verb: present: He wakes up. past: He woke up. past perfect: He had woken up. Infinitive present tense -ing form past tense past participle back off back off & backs off...
... ở buổi tiệc không?” “Không, anh ấy đã đi về nhà rồi.” Nhưng Pastperfect & Past Perfect continous Unit 15. Past perfect A Xem ví dụ sau: Sarah went to a party last week. Paul ... đi về nhà (trước khi Sarah tới) Had gone là thì Pastperfect (simple) - Thì quá khứ hoàn thành. Thì pastperfect được tạo thành = had + past participle (gone/ seen/ finished…) Đôi khi chúng ... nhà lúc đó dơ quá. Mấy tuần rồi họ đã không lau chùi gì cả. C Hãy so sánh thì pastperfect ( I had done) với pastsimple (I did) “Was Tom at the party when you arrived?” “No, he had already...
... been”) Vậy thì ai làm nhỉ. Present perfect and past (2) Unit 14. Present perfect and past (2) A Chúng ta không dùng thì present perfect (I have done) khi nói về một thời điểm ... khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect khi đề ... “have you done”). Bạn đã bị như thế nào? Pastsimple (did) I did a lot of work yesterday. Hôm qua tôi đã làm nhiều việc. Chúng ta dùng thì simplepast khi đề cập tới một thời điểm đã kết thúc...
... 100 0 0 0 0 0 0 1 -1 Electrothermal Macromodel of TEG TH TA TC VS Sustainable Energy Harvesting Technologies – Past, Present and Future 112 The most commonly used thermocouples ... 81.4% 120 100 80 -20 40 60 0 20 T [oC] Sustainable Energy Harvesting Technologies – Past, Present and Future 116 resistive load RL, the voltage VS forces a Peltier current ... low thermal conductivity λ. 2Zαρλ= (1) Sustainable Energy Harvesting Technologies – Past, Present and Future 124 5.1 Examples of simulations Output voltage VS from the TEG for...
... pp.251-259, 2008.168Sustainable Energy Harvesting Technologies – Past, Present and Future 14 Sustainable Energy Harvesting Technologies: Past, Present and FutureAt 400 lux, the maximum power that ... in aqueous156Sustainable Energy Harvesting Technologies – Past, Present and Future 12 Sustainable Energy Harvesting Technologies: Past, Present and FutureFig. 13. Voltage across PV panelFig. ... 2.67 W/m2.162Sustainable Energy Harvesting Technologies – Past, Present and Future 10 Sustainable Energy Harvesting Technologies: Past, Present and Future4. Hybrid flexible energy harvesting...
... 101-106, Kyoto, Japan, March, 2010 [5] http://www.secomtel.com/UpFilesPDF /PDF/ Agilent /PDF_ DOCS/SKYDIODE/ 03_ SKYDI/HSMS2850 .PDF (Last accessed on 13 July, 2011) [6] McSpadden, J. et al., H. (1992). ... Ctmr = 820 pF Vsn, Ctmr = 520 pF Vsn, Ctmr = 820 pF Vout, Ctmr = 520 pF Vout, Ctmr = 820 pF11.21.41.61.82-0.500.511.522.533.544.555.56 Fosc (Gate Signal) Vsn (Switching signal) ... applications for both DTV and cellular RF energy harvesting have been proposed and demonstrated with simple examples. A discussion is also presented on the typical performance analysis for the proposed...
... làm nhỉ. He lost his key (past simple) but now he has found it ( present perfect) . Anh ấy đã làm mất chìa khóa nhưng bây giờ anh ấy đã tìm ra. Thì present perfect là thì hiện tại hoàn ... sách). C Chúng ta dùng thì present perfect để đưa ra những thông tin mới (xem UNIT 7). Nhưng nếu chúng ta tiếp tục nói về điều đó, chúng ta dùng thì past simple: A: Ow! I’ve burnt myself. Ối! ... lost his key” = hiện giờ anh ấy không có chiếc chìa khóa của anh ấy. (xem UNIT 7). Còn thì pastsimple cho chúng ta biết về quá khứ. Nếu có ai đó nói rằng: “Tom lost his key” chúng ta không...