Revising the Present Revising the Present Simple TenseSimple Tense

11 - -Remember that we use this tense toRemember that we use this tense to

describe facts and regulardescribe facts and regular..

It is used a lot in scienceIt is used a lot in science..

In science, it is often used in the passiveIn science, it is often used in the passive..

The passive is used when the action is The passive is used when the action is important, not the peopleimportant, not the people..

ACTIVE Scientists use this

tense for facts

PASSIVEThis is used

by scientists

22 - -In questions, negatives and shortIn questions, negatives and short answers ,we use helping verbsanswers ,we use helping verbs..

ACTIVE

DO scientists use this tense for facts?

Yes ,they do. PASSIVEIs this used

by scientists?Yes , it is

33 - -Sometimes we think the answer to our Sometimes we think the answer to our question will be Yesquestion will be Yes. .

Sometimes we think it will be NoSometimes we think it will be No..

We make these questions by adding helping We make these questions by adding helping verbs to the of our sentenceverbs to the of our sentence..

ACTIVE Planets reflect light , bont they?

Yes ,they do. A planet doesn’t radiate light, boes it?

No, it doesn't

PASSIVELight is reflected by planets isn't it?

Yes, it isLight isn't raidated by planets is it?

No , it isn't

AA. In the following sentences , the dark words . In the following sentences , the dark words ((e.g. a planete.g. a planet) are singular) are singular . .

Rewrite the sentences making the dark words Rewrite the sentences making the dark words plural ( plural ( g. a planetsg. a planets) . Change the verb if ) . Change the verb if

necessarynecessary..

11--A A planetplanet reflects light reflects light. .

22--A A starstar radiates light radiates light. .

33 - -A A satellite satellite does not orbit a stardoes not orbit a star..

44--There is a There is a planetplanet in the Solar System in the Solar System. .

55--Does a Does a planetplanet orbit a star orbit a star? ?

BB. Write the following sentences again . . Write the following sentences again . Put the verbs into the correct formPut the verbs into the correct form. .

11 - -I (I (bebe) at school) at school. .

22 - -I (I (bebe) interested in stars) interested in stars. .

33 - -Our sun (Our sun (bebe) a star) a star. .

44 - -Galaxies (Galaxies (bebe) large groups of stars) large groups of stars

55 - -We (We (bebe) not able to see other galaxies) not able to see other galaxies..

CC. . Make the following sentences negativeMake the following sentences negative..

11 - -A planet is a starA planet is a star..

22 - -A planet radiates lightA planet radiates light..

33 - -Stars reflect lightStars reflect light..

44 - -Venus has a moonVenus has a moon..

55 - -There is a planet between Earth and MarsThere is a planet between Earth and Mars..

D. D. Make these sentences passiveMake these sentences passive..

11 - -Planets reflect lightPlanets reflect light..

22 - -Satellites orbit planetsSatellites orbit planets..

33--Stars do not reflect lightStars do not reflect light..

44--Scientists study the universeScientists study the universe..

55 - -Do stars radiate lightDo stars radiate light..

EE. Make these sentences into questions. Make these sentences into questions. . Expect the answer in bracketsExpect the answer in brackets..

11 - -Stars reflect light. (Stars reflect light. (NoNo))

22 - -Stars radiate light .(Stars radiate light .(YesYes))

33 - -Planets radiate light .(Planets radiate light .(NoNo))

44 - -There is only one star in the Solar System. (There is only one star in the Solar System. (YesYes))

55 - -There are people on Venus. (There are people on Venus. (NoNo))

والدي ولي لي الدعاء والدي ارجوا ولي لي الدعاء ارجواولمعلمتي ولمعلمتي

الدروس عمل على شجعني الدروس ولمن عمل على شجعني ولمنالباوربنت الباوربنت

المسلمين المسلمين وجميع وجميعالعروض ** مصممة تحيات العروض **مع مصممة تحيات مع

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