il verbo difettivo non ha l'infinito non prende la s alla terza persona singolare del presente indicativo
e il to dell'infinito che viene omesso
He must go deve andare
per le forme negative ed interrogative
He must not go non deve andare
must he go ? deve andare?
mustn't Richard go ? Riccardo non deve andare ?
anche can è un verbo difettivo
can you come Tomorrow ? puoi venire domani ?
he can speak English well parla bene inglese
you must do it devi farlo
sabato 5 settembre 2015
INGLESE regole d'ortografia per i verbi
nell'aggiungere le desinenze dei verbi (-s alla terza persona singolare del presente indicativo oppure -ed per formare il passato e i participio passato
-ing per formare il gerundio) si devono tener presente le regole generali di ortografia
ma quando l'infinito termina in ie si cambia la si cambia la ie in y prima di aggiungere -ing
infinito 3 persona singolare passato prossimo gerundio
presente indicativo
to invent invents invented inventing
to brush brushes brushed brushing
to study studies studied studying
to stop stops stopped stopping
to refer refers referred referring
to travel travels travelled travelling
to do does did doing
to love loves loved loving
di die dies died dying
-ing per formare il gerundio) si devono tener presente le regole generali di ortografia
ma quando l'infinito termina in ie si cambia la si cambia la ie in y prima di aggiungere -ing
infinito 3 persona singolare passato prossimo gerundio
presente indicativo
to invent invents invented inventing
to brush brushes brushed brushing
to study studies studied studying
to stop stops stopped stopping
to refer refers referred referring
to travel travels travelled travelling
to do does did doing
to love loves loved loving
di die dies died dying
INGLESE have + participio passato
tutti i verbi composti si hanno con to have che traduce l'ausiliare essere anche nei verbi di movimento
egli è andato he has gone
è iniziato il concerto the concert has begun
si usa il verbo essere to be solo nella forna passiva o se il participio passato è usato come aggettivo
fu visto he was seen
egli è soddisfatto he is satisfied
il verbo to have con un participio passato dà l'idea di azione mentre il verbo to be con ili participio passato danno idea di stato
il fiore è appassito the flower is withered
il fiore è appassito molto presto the flower has withered very soon
egli è andato he has gone
è iniziato il concerto the concert has begun
si usa il verbo essere to be solo nella forna passiva o se il participio passato è usato come aggettivo
fu visto he was seen
egli è soddisfatto he is satisfied
il verbo to have con un participio passato dà l'idea di azione mentre il verbo to be con ili participio passato danno idea di stato
il fiore è appassito the flower is withered
il fiore è appassito molto presto the flower has withered very soon
mercoledì 2 settembre 2015
INGLESE TECNICO -CONDUCTORS AND INSULATOR
In electrical work a conductor is defined as a material which allows the free passage of an electric current along it, while the term insulator indicates a material which offers an extremely high resistance to the passage of an electric current
There is no such thing as a perfect insulator for all substance conduct electricity to a Greater o lesser extent, but the difference in resistivity between conductors and insulator is so enormous that there is no possible ambiguity in this classification
Thus slate , which is a relatively poor insulator has nevertheless a resistivity 10/12 times higher than a high-resistance alloy, which is a bad conductor while the ratio between the resistivity of the worst and best conductors is much smaller
the resistivity of nichrome for istance is about seventy times the of copper
those materials which fall in between conductor and insulator are classed as semi-conductors (germanium
The resistivity of any material is a constant for any specified temperature m but varies with this
The resistance of copper and most othe r conductor increases with temperature
the resistance of constantan and other usful alloy is pratically constant within wid limits of temperature while resistance of carbon of electrolytes and of most dielectrics decreases as the temperature rises
Because of this decrease in resistance which occurs in insulating materials a limit in the rise in temperature is imposed in their applications, otherwise the insulation would break down to cause a leakage current or even a short circuit
conductor and insulators used in electrical work are extremely veried and of a most diverse nature
Because no single material can be used too extensively both for costs and availability different materials are usually combined to fhve the required properties of mechanical strength adaptability and reliability
There is no such thing as a perfect insulator for all substance conduct electricity to a Greater o lesser extent, but the difference in resistivity between conductors and insulator is so enormous that there is no possible ambiguity in this classification
Thus slate , which is a relatively poor insulator has nevertheless a resistivity 10/12 times higher than a high-resistance alloy, which is a bad conductor while the ratio between the resistivity of the worst and best conductors is much smaller
the resistivity of nichrome for istance is about seventy times the of copper
those materials which fall in between conductor and insulator are classed as semi-conductors (germanium
The resistivity of any material is a constant for any specified temperature m but varies with this
The resistance of copper and most othe r conductor increases with temperature
the resistance of constantan and other usful alloy is pratically constant within wid limits of temperature while resistance of carbon of electrolytes and of most dielectrics decreases as the temperature rises
Because of this decrease in resistance which occurs in insulating materials a limit in the rise in temperature is imposed in their applications, otherwise the insulation would break down to cause a leakage current or even a short circuit
conductor and insulators used in electrical work are extremely veried and of a most diverse nature
Because no single material can be used too extensively both for costs and availability different materials are usually combined to fhve the required properties of mechanical strength adaptability and reliability
martedì 1 settembre 2015
INGLESE - ESERCIZI SULL'INGLESE TECNICO
read these sentences through then replace quality and characteristic y property or grade
1. materials are accurately tested so that their electrical characteristics can be assesse and compared
2. the oxid film which forms on alluminium increas its corrosion-resisting qualities
3. the body of a high breaking capacity cartridge fuse is of high-qualitiy ceramic
4. the most important quality of copper is its high electrical conductivity
5.in the early 20th century it was discovered that electron emission from heated metals is a true quality of the metals themselves and is not a secondary effect due to the presence of gas
6. paper thugh higly hygrospocpic is used as an insulator in many applications on account of its flexibility and good electric qualities
7. welded-seam conduit is used for most commercial quality installation work
8. the magnetic qualities of iron and cerain special iron alloys are essential to commercial electrical machine and trasformers
9. the quality of this uranium ore is too low for economic working
10. it is seldom possible to obtai in one material the ideal mechanical and electrical characteristics
1. materials are accurately tested so that their electrical characteristics can be assesse and compared
2. the oxid film which forms on alluminium increas its corrosion-resisting qualities
3. the body of a high breaking capacity cartridge fuse is of high-qualitiy ceramic
4. the most important quality of copper is its high electrical conductivity
5.in the early 20th century it was discovered that electron emission from heated metals is a true quality of the metals themselves and is not a secondary effect due to the presence of gas
6. paper thugh higly hygrospocpic is used as an insulator in many applications on account of its flexibility and good electric qualities
7. welded-seam conduit is used for most commercial quality installation work
8. the magnetic qualities of iron and cerain special iron alloys are essential to commercial electrical machine and trasformers
9. the quality of this uranium ore is too low for economic working
10. it is seldom possible to obtai in one material the ideal mechanical and electrical characteristics
mercoledì 5 agosto 2015
inglese - L'IMPERATIVO
L'imperativo ha di suo solo la seconda persona che è uguale per il singolare e plurale
Explain what do you mean spiega (spiegate) che cosa vuoi (volete) dire
Per la prima persona plurale e la terza persona singolare e plurale si ricorre ad una forma composta con il verbo to let (lasciare) la costruzione è la seguente : let+ nome o pronome + infinito senza il to
let us see vediamo (letteralmente lasciaci vedere)
Explain what do you mean spiega (spiegate) che cosa vuoi (volete) dire
Per la prima persona plurale e la terza persona singolare e plurale si ricorre ad una forma composta con il verbo to let (lasciare) la costruzione è la seguente : let+ nome o pronome + infinito senza il to
let us see vediamo (letteralmente lasciaci vedere)
inglese IL CONDIZIONALE
il modo condizionale in italiano si traduce in inglese con un tempo indicativo che i grammatici chiamano future in the past (futuro nel passato
esso si forma con l'ausiliare should (passato di shall) e spesso con would (passato di will)
per la prima persona singolare e plurale
questi ausiliari sono seguiti dall'infinito senza il to
I should /would invent inventerei
you would invent inventeresti
he would invent inventerebbe
we would invent inventeremmo
you would invent inventereste
they would invent inventerebbero
esso si forma con l'ausiliare should (passato di shall) e spesso con would (passato di will)
per la prima persona singolare e plurale
questi ausiliari sono seguiti dall'infinito senza il to
I should /would invent inventerei
you would invent inventeresti
he would invent inventerebbe
we would invent inventeremmo
you would invent inventereste
they would invent inventerebbero
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