The document discusses the passive voice in English. It describes how the passive voice is formed using the appropriate form of the verb "to be" plus the past participle of the main verb. It provides examples of passive constructions in different tenses. It also explains the functions of the passive voice, such as when the subject experiences the action rather than performs it or when the agent is unknown.
This article covers English Past Tense, including tips and tricks on how to memorize past tense verbs and phrases, and how to best progress as an English student.
Different Kinds of Sentences according to Function and Purposesarah_ichi07
Oral reading activities with two students pretending to be the two main characters in the short skit. The teacher would ask about the sentences used in the skit and its function and purpose. Then he/she will proceed in discussing the different kinds of sentences according to it's function and purpose. Next is an activity and finally, group activity wherein the students should make a skit using the different kinds of sentences according to its function and purpose.
This article covers English Past Tense, including tips and tricks on how to memorize past tense verbs and phrases, and how to best progress as an English student.
Different Kinds of Sentences according to Function and Purposesarah_ichi07
Oral reading activities with two students pretending to be the two main characters in the short skit. The teacher would ask about the sentences used in the skit and its function and purpose. Then he/she will proceed in discussing the different kinds of sentences according to it's function and purpose. Next is an activity and finally, group activity wherein the students should make a skit using the different kinds of sentences according to its function and purpose.
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
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MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
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Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
Couples presenting to the infertility clinic- Do they really have infertility...
The passive voice
1. THE PASSIVE VOICE
PASSIVE TENSES AND ACTIVE EQUIVALENTS
Notice that the tense of the verb to be in the passive voice is the same as the tense
of the main verb in the active voice.
Example: to keep
TENSE / VERB FORM ACTIVE VOICE PASSIVE VOICE
Simple present keeps is kept
Present continuous is keeping is being kept
Simple past kept was kept
Past continuous was keeping was being kept
Present perfect have kept have been kept
Past perfect had kept had been kept
future will keep will be kept
Conditional present would keep would be kept
Conditional past would have kept would have been kept
present infinitive to keep to be kept
perfect infinitive to have kept to have been kept
present keeping being kept
participle/gerund
perfect participle having kept having been kept
Example sentences:
Active: I keep the butter in the fridge.
Passive: The butter is kept in the fridge.
Active: They stole the painting.
Passive: The painting was stolen.
Active: They are repairing the road.
Passive: The road is being repaired.
Active: Shakespeare wrote Hamlet.
Passive: Hamlet was written by Shakespeare.
Active: A dog bit him.
Passive: He was bitten by a dog.
THE PASSIVE VOICE
PASSIVE, FORM
The passive voice in English is composed of two elements : the appropriate form of
the verb 'to be' + the past participle of the verb in question:
2. Subject verb 'to be' past participle
The house was built ...
Example: to clean
Subject verb 'to be' past participle
Simple present:
The house is cleaned every day.
Present continuous:
The house is being cleaned at the moment.
Simple past:
The house was cleaned yesterday.
Past continuous:
The house was being cleaned last week.
Present perfect:
The house has been cleaned since you left.
Past perfect:
The house had been cleaned before their arrival.
Future:
The house will be cleaned next week.
Future continuous:
The house will be being cleaned tomorrow.
Present conditional:
The house would be cleaned if they had visitors.
Past conditional:
The house would have been cleaned if it had been dirty.
NOTE: 'to be born' is a passive form and is most commonly used in the past tense:
I was born in 1976. When were you born?
BUT: Around 100 babies are born in this hospital every week.
3. Infinitive form: infinitive of 'to be' + past participle: (to) be cleaned
This form is used after modal verbs and other verbs normally followed by an
infinitive, e.g.
You have to be tested on your English grammar
John might be promoted next year.
She wants to be invited to the party.
Gerund or -ing form: being + past participle: being cleaned
This form is used after prepositions and verbs normally followed by a gerund
Examples:
a. Most film stars hate being interviewed.
b. I remember being taught to drive.
c. The children are excited about being taken to the zoo.
NOTE: Sometimes the passive is formed using the verb to getinstead of the verb to
be:
a. He got arrested for dangerous driving.
b. They're getting married later this year.
c. I'm not sure how the window got broken.
THE PASSIVE VOICE
PASSIVE, FUNCTION
The passive voice is used to show interest in the person or object that experiences
an action rather than the person or object that performs the action, e.g.
• The passive is used ...:
We are interested in the passive, not who uses it.
• The house was built in 1654:
We are interested in the house, not the builder.
• The road is being repaired:
We are interested in the road, not the people repairing it.
In other words, the most important thing or person becomes the subject of the
sentence.
Sometimes we use the passive voice because we don't know or cannot express who
or what performed the action:
• I noticed that a window had been left open
• Every year people are killed on our roads.
If we want to say who or what performs the action, we use the preposition by:
• "A Hard Day's Night" was written by the Beatles
• ET was directed by Spielberg
4. The passive voice is often used in formal or scientific texts:
• A great deal of meaning is conveyed by a few well-chosen words.
• Our planet is wrapped in a mass of gases.
• Waste materials are disposed of in a variety of ways.
• THE PASSIVE VOICE
• GET / HAVE SOMETHING DONE
• This construction is passive in meaning. It may describe situations where we
want someone else to do something for us.
•
• Examples:
• a. I must get / have my hair cut.
b. When are you going to get that window mended?
c. We're having the house painted.
• If the verb refers to something negative or unwanted, it has the same
meaning as a passive sentence:
• d. Jim had his car stolen last night. (= Jim's car was stolen)
e. They had their roof blown off in the storm. (= Their roof was blown off
in the storm)
• The construction can refer to the completion of an activity, especially if a
time expression is used:
• f. We'll get the work done as soon as possible.
g. I'll get those letters typed before lunchtime.
• In all these sentences, we are more interested in the result of the activity
than in the person or object that performs the activity.
• 'X' NEEDS DOING
• In the same way, this construction has a passive meaning. The important
thing in our minds is the person or thing that will experience the action, e.g.
• a. The ceiling needs painting (= the ceiling needs to be painted)
•
b. My hair needs cutting (= my hair needs to be cut)
PASSIVE VOICE
5. Put the sentences into passive voice.
1 They built these houses in 1902.
.
2 She bakes a cake every Sunday.
.
3 He broke the vase yesterday.
.
4 I clean the shoes every Friday.
.
5 We wrote the exercise an hour ago.
.
6 They use this road very often.
.
7 Thieves stole his car.
.
8 They cancelled all the flights.
.
9 Brian told the truth.
.
10 She always loads the dishwasher.
.
11 He sometimes does the shopping.
.
12 The ambulance took Peter to hospital.
.
PASSIVE - present and past tense
6. 1 He (offer) a new job last week.
2 The bridge (blow off) yesterday.
3 This novel (write) by Hemingway.
4 Flies (catch) by spiders.
5 All the trees (cut) down yesterday.
6 We (tell) to go home now.
7 Their purse (steal) yesterday night in the disco.
8 Rain (hold) up by fog.
9 He (throw) out of the bar a week ago.
10 Pigs (use) to find truffles.
11 The old theatre (reopen) last Friday.
12 She (ask) about the accident by the police
yesterday.
13 Rotten eggs (throw) at him last month in Bristol.
14 Mice (catch) by cats.
15 I (often / ask) for her address.
PASSIVE
7. 1 English (speak) all over the world. (Present tense)
2 This quarrel (forget) in a few years' time. (Future
tense)
3 My pencil case (steal). (Present perfect)
4 We (never / beat) at badminton. (Present perfect)
5 This shirt (make) in France. (Past tense)
6 The dogs (keep) in house. (Present tense)
7 Her new book (publish) next month. (Future tense)
8 Milk (use) to make butter and cheese. (Present
tense)
9 They (take) to school. (Past tense)
10 Not a sound (hear). (Past tense)
11 Some ink (spill) on the carpet. (Present perfect)
12 The thieves by the police. (Past tense)
13 The homework (correct) by the teacher. (Future
tense)
14 Her ring (find) under the bed. (Past tense)
15 I (offer) an interesting job. (Past tense)