Causative Verbs

Causative verbs express an action which is caused to happen. This note contain information about uses of causative agent.

Summary

Causative verbs express an action which is caused to happen. This note contain information about uses of causative agent.

Things to Remember

Causative verbs express an action which is caused to happen.

The English verbs let, make, have ,get,and help are called causative verbs because they cause something else to happen.

Get gives the idea of persuasion, have is asking and make is forcing or strong convincing. 

Causative verbs can come in any tenses.

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Subjective Questions

Q1:

What do you mean by lithotripsy?


Type: Short Difficulty: Easy

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Answer: <p>Lithotripsy is the process used for the treatment of the kidney stone that are too large to pass through the urinary tract. Lithotripsy process involves the passing of the high energy shock wave inside the body. The series of shock-waves are administered into the body to the targeted stone. The stone is then broken into the smaller pieces which are easily passed out through the urinary tract during the urination. This process is the non-invasive procedure for the treatment of kidney. The machine which is used to generate the shock-waves for the treatment of kidney stone is known as lithotripter machine.</p>

Q2:

List out the types of lithotripter machine along with the physical principle they are based on.


Type: Short Difficulty: Easy

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Answer: <p>There are various types of lithotripter machine available for the treatment of kidney stone. The types of lithotripter machines available along with the principle for the generation of shockwaves are as follows:</p> <ul><li>Extra corporeal shock-wave lithotripsy (ESWL) based on Electro-hydraulic method</li> <li>Extra corporeal shock-wave lithotripsy (ESWL) based on Piezo-ceramic method</li> <li>Extra corporeal shock-wave lithotripsy (ESWL) based on Electro-magnetic method</li> <li>Extra corporeal shock-wave lithotripsy (ESWL) based on Electro-conductive method</li> </ul>

Q3:

Write the working of lithotripter machine based on electro-hydraulic method.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Electro-hydraulic method is one of the expensive and widely available method used in lithotripter machine. The major components of electro-hydraulic lithotripter arefocused shock- wave source, stone localization modalities, acoustic coupling to the patient, trigger generation &amp; control.</p> <p>The electro-hydraulic lithotripter machine consists of a large tub of water with the electrodes at the base of the reflector. The patient is partially submerged in the water tub. The water is used beacuse it provides the good acoustic coupling to the patient. The acoustic coupling helps the acoustic wave generated in water to penetrate the tissue. The reflector focuses the shock-wave expanded form the electrode gap. The stone's position is focused accurately by the help of X-ray system. The X-ray beams from two independent X-ray system are viewed on two monitors.The kidney stone is correctly centered when it appears on the same position on both monitors which is indicated by cross wires of each X-ray system. The stone is broken up by stress &amp; shear forces generated in it by series of shock-waves. Upto 2000 shock-waves are necessary to reduce a kidney-stone into 1-2 mm fragments which can pass through the urinary track. Thus, the lithotripter machine works.</p>

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Causative Verbs

Causative Verbs

Causative verbs express an action which is caused to happen.The English verbs let, make, have ,get,and help are called causative verbs because they cause something else to happen.

Get gives the idea of persuasion, have is asking and make is forcing or strong convincing. These causative verbs can come in any tenses.

Uses of causative verbs:

Make:

'Make as a causative verb follows the structure "sub + make + agent + V1 +...." that means to force someone to do something.

  • Don't make me shout at him.
  • The principal made the teachers stay after the school hour.

In the passive structure, the causative verb 'make' comes with 'to + V1.

  • The teachers were made to stay after school hour by the principal.

Get:

'Get' as a causative verb follow the structure "sub + get + agent + to + V1 + ......" that means to convince someone to do something.

  • The doctors are trying to get people to stop smoking.
  • We should get people to plant some trees in their surrounding.

Have

'Have' as a causative verb follows the structure "sub + have + agent + V1+......" that means to give someone the responsibility to do something or to ask someone to do something.

  • I had my hair cut in a completely new style.
  • Can you make him laugh?

Get/Have something done

Sometimes 'get someone to do something' or 'get something done' is interchangeable with 'have something so something' or 'get something done'. but there is a little difference between these expressions.

1. Have something done

  • Shyam had his hair cut last Saturday.
  • I had my house painted.

2. Get something done

  • Rohan got his room cleaned yesterday.
  • Tarun gets his letter typed neatly.

Lesson

Grammar

Subject

English

Grade

Grade 10

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