three simple present tense forms of the verb to be
the verb TO BE
... new top My the of letter. ……………………… EX 3. Negative forms of the verb to be. Example: She isn't from France. 1. This book mine. 2. Jane and Peter married. 3. That right. 4. My brother ... week, she on holidays. ã Today, you the best student. h ã Last year, you the tallest child in the school. ã Now, he at the library. ã Yesterday, I at the swimming-pool. ã Today, it raining. ã ... at school today. Jack and Peter her friends. They in the same class. Mr and Mrs Baker on a trip to the USA to visit their cousin Anne. She a nice girl. Peter says: "My grandfather in hospital....
Ngày tải lên: 11/07/2014, 23:00
Báo cáo khoa học: "TENSE GENERATION IN AN INTELLIGENT TUTOR FOR FOREIGN LANGUAGE TEACHING: SOME ISSUES IN THE DESIGN OF THE VERB EXPERT" pot
... that of the expert in order to identify the errors, if any, present in the former and to formulate some hypotheses about their causes. On the basis of these hy- potheses, the Tutor selects the ... in order to correctly describe the status of the world the sentence is intended to represent, and ii) to appropriately conjugate the verb according to the chosen tense. Besides these basic ... example, the kind of clause (main, coordinate, subordinate), whether the clause has a verb to be solved, the voice and form of the clause, the kind of event described by the clause, the time...
Ngày tải lên: 01/04/2014, 00:20
Give correct forms of the verbs
... Give the correct form of the verbs (Englsh 8) 1 .The sun always (rise) in the east. Look, it (rise)! 2. I don’t think I (go) out tonight. I’m too tired. 3. Where you (spend) ... evening. I (stay) at home. 33. The film (begin) at 7.30 or 8.00? 34. You (be) away? - Yes. I (go) to the country last Sunday. 35. They just (phone) to say that they (not come) back till Friday night. 36. ... ago. 30. The weather (become) colder and colder in December. 31. He (cut) my hair too short. - Don’t worry; it (grow) again very quickly. 32.I (not go) out this evening. I (stay) at home. 33. The...
Ngày tải lên: 07/06/2013, 01:26
Tài liệu Simple present tense (Thì hiện tại đơn giản) doc
... danh từ theo sau every không có mạo từ the on : ở trên in : ở trong at : ở tại on the table : ở trên bàn in the moring : vào buổi sáng at office : ở cơ quan Simple present tense (Thì ... quan tâm đến các thì (tense) của nó. Động từ là yếu tố chủ yếu trong câu quyết định thì của câu, tức là nó cho biết thời điểm xảy ra hành động. Simple Present Tense Simple Present là thì hiện ... hiện tại đơn. Các câu và cách chia động từ TO BE chúng ta đã học trong các bài trước đều được viết ở thì hiện tại đơn. Sau đây là cách chia động từ TO WORK (làm việc) ở thì hiện tại đơn: I...
Ngày tải lên: 19/01/2014, 17:20
CLARIFYING BUSINESS MODELS: ORIGINS, PRESENT, AND FUTURE OF THE CONCEPT pot
... requires an amount of internal diversity superior to that of the environment. Allen suggests that agents need to have a stock of potential strategies to be set off in the face of unpredictability ... a set of software-based tools can be uilt to simplify the life of managers. Communications of AIS, Volume 15, Article 36 Clarifying Business Models: Origins, Present, and Future of the Concept ... managers will be better prepared for the future. Similarly, in the domain of e-business, Richards and Morrison [2001] compare this kind of simulation tool to a sort of flight simulator that allows...
Ngày tải lên: 15/03/2014, 21:20
Báo cáo khoa học: Characterization of recombinant forms of the yeast Gas1 protein and identification of residues essential for glucanosyltransferase activity and folding pot
... by the release of the cleaved product and stabilization of the carbon cation by the catalytic nucleophile. The new reducing end is then transferred to the hydroxyl group at the 3 -position of the nonreducing ... BamHI/XhoI-digested PCR fragments into the corresponding sites of the P. pas- toris exp ression vector, p HIL-S1, to obtain in-frame fusion with the secretion signal of the P. pastoris PHO1 gene. The recombinant ... the behaviour of the l abelled forms was monitored at different time-points after the chase (Fig. 7B). The E R form of Gas1p migrated at 105 kDa, and t he mature f orm, after p rocessing in the Golgi,...
Ngày tải lên: 16/03/2014, 18:20
The first three minutes a modern view of the origin of the universe s weinberg
... this say about the origin of the universe? If the galaxies are rushing apart, then they must once have been closer together. To be specific, if their velocity has been constant, then the time it ... momentum depend- ing on the wavelength of the light. To describe the light that filled the early universe, we can say that the number and the average energy of the photons was about the same as for electrons ... 'classic' part of the subject, which has to do mostly with the large-scale structure of the present universe: the debate over the extragalactic nature of the spiral nebulae; the discovery of the red...
Ngày tải lên: 17/03/2014, 13:35
Báo cáo khoa học: Inactive forms of the catalytic subunit of protein kinase A are expressed in the brain of higher primates potx
... cells to NT2-N cells with charac- teristics of post-mitotic neurons of the central nervous system [19], express six novel mRNA species of the PKA Cb gene; these variants lack exon 4. The Cb forms ... weeks into NT2-N cells [6]. A search in the expressed sequence tag database revealed the sequence of C b3ab lacking the 99 bases of exon 4 (accession number AK091420). To verify the existence of Cb ... N-terminus of Ca1 and Cb1 are more homologous to each other than to any of their splice variants. In the case of Ca1, three sites may undergo co- and post-translational modifications. At the very N-terminus,...
Ngày tải lên: 30/03/2014, 04:20
Báo cáo khoa học: Expression and characterization of soluble forms of the extracellular domains of the b, c and e subunits of the human muscle acetylcholine receptor pot
... to obtain satisfactory amounts of the ECDs of the non-a sub- units of human muscle AChR for use as starting material for the determin- ation of the 3D structure of the receptor ECDs and for the ... results in higher expression of the mouse muscle a ECD [21]. To test the effect of these additional epitopes ⁄ tags on the yield of the present proteins, we constructed a set of eight human c ECD variants ... features. Binding of human MG antibodies to recombinant ECDs To further examine the structure of the ECDs pro- duced and their potential as tools for MG studies, we tested their capacity to bind the highly...
Ngày tải lên: 30/03/2014, 10:20
báo cáo hóa học:" Cadaveric and three-dimensional computed tomography study of the morphology of the scapula with reference to reversed shoulder prosthesis" pptx
... column of the scapula. The length of the neck of the inferior part of the glenoid was measured in the true anterior view as well as in the true posterior view. The length of the neck of the glenoid ... scapula, the different location of the base of the coracoid process and the upper posterior column of the scapula and the length of the neck of the glenoid. Maybe two different implant types of gle- noid ... surface to anterior and posterior column of the scapula. Measure of the angle between the glenoid surface and the upper posterior column of the scapula (φ). Figure 3 Measure of the angle between the...
Ngày tải lên: 20/06/2014, 01:20
Báo cáo hóa học: " Research Article Some Equivalent Forms of the Arithematic-Geometric Mean Inequality in Probability: A Survey" pptx
... with Y and 0, respectively. 4 Journal of Inequalities and Applications Proof. The sketch of the proof of this theorem is illustrated by the following maps of equivalent circles: 1E 3 ⇒ H 0 ... E 4 , ,E 7 can be found in 1, 2, 4, 5. The proof of the equivalent relations of E 1 , E 2 , E 8 , E 9 , E 10 ,andE 11 can be found in 3. Theorem 2.2. The following inequalities ... space and X be a random variable taking values in the open convex set A ⊂ R with finite expectation EX.Iff : A→R is convex, then EfX ≥ fEX. Proof. The proof of the equivalent relations of E 2 ,...
Ngày tải lên: 22/06/2014, 02:20
present and future of the cosmic microwave background proceedings of the workshop held in santander spain 28 june-1 july 1993
... gaussian beam as a function of the beam FWttM in arcminutes. The cluster centers are assumed to be uncorrelated for this calculation. These numbers are meant to be representa- tive of the amplitude ... values of y~ indicated on the right of the dashes. The initial spectrum, assumed to be a superposition of black-bodies, is represented by the dotted lines (labeled i.c.). The bottom panel shows the ... hint of structure between the scales of the 1.8-arcmin beam of the OVRO telescope and the 0.5-arcmin resolution limit of the Ryle data. Even with the small (13-m diameter) antennas and the most...
Ngày tải lên: 03/07/2014, 21:10
Tenses and forms of the verbs (very hot)
... Who does 43- They had to cancel the flight because of the bad weather. The flight 44- We must finish the project on time. The project 45- People can find a cure for cancer in the near future. ... garbage bins around the school yard. I suggest 21- Tom failed the exam because of his laziness. Because Tom 22-Unless we reduce the use of electricity,We'll have to pay more this month. ... me. 107. They will pass the exam if they (study)…………….hard. 108.They said that they (will try)……………… their best to do the test. 2 4 . We/ used / go / picnic / weekends / last year. 3. The chilren...
Ngày tải lên: 11/07/2014, 01:00
Verbs and simple present tense doc
... tức là nó cho biết thời điểm xảy ra hành động. Simple Present Tense Simple Present là thì hiện tại đơn. Các câu và cách chia động từ TO BE chúng ta đã học trong các bài trước đều được ... Verbs and simple present tense Khi nói và viết tiếng Anh còn phải quan tâm đến các thì (tense) của nó. Động từ là yếu tố chủ yếu trong câu ... goes round the sun. (Trát đất đi xung quanh mặt trời) The sun rises in the east. (Mặt trời mọc ở hướng đông) on : ở trên in : ở trong at : ở tại on the table : ở trên bàn in the moring...
Ngày tải lên: 11/07/2014, 04:20
