Changing Passive Voice to Active

What is a Spectrum?

The sentences on the left come from the following passage. In the box, rewrite the sentences in the active voice. Be sure to keep the same tense. Use the underlined phrase as the new subject. For example:

The sunlight is refracted by raindrops.
=> Raindrops refract the sunlight.

What is a spectrum?
A spectrum is a rainbowlike series of colors, in the order violet, blue, green, yellow, orange, and red. A spectrum is produced by splitting white light into its component colors. The rainbow is a natural spectrum, produced by meteorological phenomena. A similar effect can be produced by passing sunlight through a glass prism. The first correct explanation of the phenomenon of specturms was advanced in 1666 by the English mathematician and physicist Sir Isaac Newton.

This passage was taken from Encarta Online.

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'; if (is.CRAPBrowser){ReadingText=ResolveAllURLs(ReadingText);} var NavBar=''; NavBar+=''; if (is.CRAPBrowser){NavBar = ResolveAllURLs(NavBar);} var TitleCode = ''; TitleCode += '' + ExerciseTitle + '
'; TitleCode += '' + ExerciseSubtitle + '
'; TitleCode += ''; var QButtonsOpener = ''; QButtonsOpener += '

'; var TableOpener = ''; var QRow = ''; QRow += ''; QRow += ''; var ARow = ''; var BtnRow = ''; TableCloser = '

'; QRow += '[QNumber]��	[Question] �'; QRow += '
'; ARow += '[AnswerBox]
'; BtnRow += ''; BtnRow += ''; BtnRow += ''; BtnRow += '

'; var LongAnswer = ''; var ShortAnswer = ''; function GoBack(){ var BackSkip = history.length - PreviousPage; if (BackSkip > 0){ history.go((BackSkip+1)*-1); } else{ parent.history.back(); } } function TrapReturn(ShowHint,QNum){ //if not yet answered correctly, call CheckAnswer if (Status[QNum][0] < 1){ CheckAnswer(ShowHint,QNum); return; } //otherwise, move on to the next question if showing serially else{ if (ShowOneByOne == true){ setTimeout('ChangeQ(1)', 50); } } } function ReduceItems(){ var ItemToDump=0; var j=0; while (I.length > QsToShow){ ItemToDump = Math.floor(I.length*Math.random()); for (j=ItemToDump; j<(I.length-1); j++){ I[j] = I[j+1]; } I.length = I.length-1; } } function Shuffle(InArray){ Temp = new Array(); var Len = InArray.length; var j = Len; for (var i=0; i '; OutString += ''; OutString += NavBar; if (Feedback.length>0){ OutString += '' } OutString += '

'; OutString += ''; OutString += Feedback; OutString += '

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'; //Write it to the frame TopFrame.document.clear(); TopFrame.document.open(); TopFrame.document.write(OutString); TopFrame.document.close(); } function StartUp(){ //Write the top frame WriteFeedback(Instructions); if ((is.mac)&&(is.ns)) { FocusBoxes = false; } //Reduce array if required if (QsToShow < I.length){ ReduceItems(); } //Shuffle stuff if required if (ShuffleQs == true){ I = Shuffle(I); } //Create arrays CreateStatusArrays(); ShowReading(); //Show the first question or all of them if (ShowOneByOne == false){ ShowAllQs(); } else{ ShowQuestion(CurrQNum); } //Focus the first box var Box = eval('BottomFrame.document.QForm0.Guess'); if (Box != null){ Box.focus(); } } I = new Array(); I[0] = new Array(); I[0][0]='A spectrum is produced by splitting white light into its component colors.'; I[0][1] = new Array(); I[0][1][0] = new Array(); I[0][1][0][0]='Splitting white light into its component colors produces a spectrum.'; I[0][1][1] = new Array(); I[0][1][1][0]='Splitting white light into its component colors produces a spectrum'; I[1] = new Array(); I[1][0]='The rainbow is a natural spectrum, produced by meteorological phenomena.'; I[1][1] = new Array(); I[1][1][0] = new Array(); I[1][1][0][0]='Meteorological phenomena produce the rainbow, a natural spectrum.'; I[1][1][1] = new Array(); I[1][1][1][0]='Meteorological phenomena produce the rainbow, which is a natural spectrums.'; I[1][1][2] = new Array(); I[1][1][2][0]='Meteorological phenomena produce the rainbow, a natural spectrum'; I[1][1][3] = new Array(); I[1][1][3][0]='Meteorological phenomena produce the rainbow, which is natural spectrums'; I[1][1][4] = new Array(); I[1][1][4][0]='Meteorological phenomena produce rainbows, a natural spectrum.'; I[1][1][5] = new Array(); I[1][1][5][0]='Meteorological phenomena produce rainbows, which are natural spectrums.'; I[1][1][6] = new Array(); I[1][1][6][0]='Meteorological phenomena produce rainbows, a natural spectrum'; I[1][1][7] = new Array(); I[1][1][7][0]='Meteorological phenomena produce rainbows, which are natural spectrums'; I[2] = new Array(); I[2][0]='A similar effect can be produced by passing sunlight through a glass prism.'; I[2][1] = new Array(); I[2][1][0] = new Array(); I[2][1][0][0]='Passing sunlight through a glass prism can produce a similar effect.'; I[2][1][1] = new Array(); I[2][1][1][0]='Passing sunlight through a glass prism can produce a similar effect'; I[3] = new Array(); I[3][0]='The first correct explanation of the phenomenon of spectrums was advanced in 1666 by the English mathematician and physicist Sir Issac Newton.'; I[3][1] = new Array(); I[3][1][0] = new Array(); I[3][1][0][0]='In 1666 the English mathematician and physicist Sir Issac Newton advanced the first correct explanation of the phenomenon of spectrums.'; I[3][1][1] = new Array(); I[3][1][1][0]='In 1666 the English mathematician and physicist Sir Issac Newton advanced the first correct explanation of the phenomenon of spectrums'; I[3][1][2] = new Array(); I[3][1][2][0]='The English mathematician and physicist Sir Issac Newton advanced the first correct explanation of the phenomenon of spectrums in 1666.'; I[3][1][3] = new Array(); I[3][1][3][0]='The English mathematician and physicist Sir Issac Newton advanced the first correct explanation of the phenomenon of spectrums in 1666'; Status = new Array(); function CreateStatusArrays(){ Status.length = 0; for (i=0; i-1){ FirstBit = InString.substring(0, i); LastBit = InString.substring(i + Token.length, InString.length); InString = FirstBit + Replacement + LastBit; i = InString.indexOf(Token); } return InString; } function ChangeQ(ChangeBy){ var NewNum = CurrQNum + ChangeBy; if ((NewNum >= 0)&&(NewNum Longest){ Longest = I[QNum][1][i][0].length; } } var AnsBox = ''; if (Longest > 20){ AnsBox = LongAnswer; } else{ AnsBox = ReplaceStuff('[AnswerSize]', (Longest + ''), ShortAnswer); } var AnsRow = ReplaceStuff('[AnswerBox]', AnsBox, ARow); Temp += AnsRow; Temp += BtnRow; Temp = ReplaceStuff('[QNumber]', QNum+1, Temp); Temp = ReplaceStuff('[QNum]', QNum, Temp); return Temp; } function DisplayExercise(StuffToDisplay){ //Build the output string var OutString = ''; OutString += ''; OutString += ' '; OutString += ''; OutString += TitleCode; OutString += ''; OutString += NavBar; OutString += '

'; OutString += ''; OutString += StuffToDisplay; OutString += '

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'; if (is.CRAPBrowser){OutString=ResolveAllURLs(OutString);} //Write it to the frame BottomFrame.document.clear(); BottomFrame.document.open(); BottomFrame.document.write(OutString); BottomFrame.document.close(); } function ShowAllQs(){ var Output = ''; for (var i=0; i

'; } Output = Output + BuildQuestion(I.length-1); Output = TableOpener + Output + TableCloser; DisplayExercise(Output); } function ShowQuestion(QNum){ //First, create the Q number readout at the top var Readout = (QNum+1) + '/' + I.length; while (Readout.length < 7){ Readout = ' ' + Readout + ' '; } Readout = QButtonsOpener + Readout + QButtonsCloser; var Output = BuildQuestion(QNum); Output = TableOpener + Output + TableCloser; DisplayExercise(Readout + Output); //Replace the student's answer var Box = eval('BottomFrame.document.QForm' + QNum + '.Guess'); if (Box != null){ if (Status[QNum][3].length > 0){ Box.value = Status[QNum][3]; } Box.focus(); } } function TrimString(InString){ var x = 0 if (InString.length != 0) { while ((InString.charAt(InString.length - 1) == '\u0020') || (InString.charAt(InString.length - 1) == '\u000A') || (InString.charAt(InString.length - 1) == '\u000D')){ InString = InString.substring(0, InString.length - 1) } while ((InString.charAt(0) == '\u0020') || (InString.charAt(0) == '\u000A') || (InString.charAt(0) == '\u000D')){ InString = InString.substring(1, InString.length) } while (InString.indexOf(' ') != -1) { x = InString.indexOf(' ') InString = InString.substring(0, x) + InString.substring(x+1, InString.length) } return InString; } else { return ''; } } function RemovePunctuation(InString){ var OutString = ''; for (i=0; i InArray[Longest].length){ Longest = i; } } return Longest; } function CheckWords(Guess, Answer){ var Start = 0; var End = 0; var LoopCounter = 0; var ReturnList = ''; var i = 0; var j = 0; GuessWords = new Array(); AnswerWords = new Array(); Guess = RemovePunctuation(Guess); Answer = RemovePunctuation(Answer); while (Guess.indexOf(' ', Start) > -1) { End = Guess.indexOf(' ', Start); GuessWords[LoopCounter] = Guess.substring(Start, End).toLowerCase(); LoopCounter++; Start = End + 1; } GuessWords[LoopCounter] = Guess.substring(Start, Guess.length).toLowerCase(); Start = 0; LoopCounter = 0; while (Answer.indexOf(' ', Start) > -1) { End = Answer.indexOf(' ', Start); AnswerWords[LoopCounter] = Answer.substring(Start, End); LoopCounter++; Start = End + 1; } AnswerWords[LoopCounter] = Answer.substring(Start, Answer.length); ReturnList = ''; for (i = 0; i < GuessWords.length; i++){ for (j = 0; j < AnswerWords.length; j++){ if (GuessWords[i] == AnswerWords[j].toLowerCase()){ ReturnList = ReturnList + AnswerWords[j] + ', ' ; AnswerWords[j] = ''; break; } } } if (ReturnList.length > 0){ ReturnList = ReturnList.substring(0, ReturnList.length - 2); } return ReturnList; } function CalculateScore(){ Score = 0; var DoneQs = 0; for (i=0; i';}; } if (Right > -1){ Status[QNum][0] = 1; Output = CorrectResponse + ' '; //Get the score for this question var HintPenalty = (Status[QNum][2]*10)/CorrectAs[Right].length; Status[QNum][4] = Math.floor((10 - Status[QNum][1]) - HintPenalty); //Check whether the quiz is finished var Finished = true; for (var i=0; i 0){ CorrectBits[0][i] = RealAs[i].substring(0,CorrectBits[0][i].length); } CorrectBits[1][i] = CheckEnd(Guess, CorrectAs[i]); if (CorrectBits[1][i].length > 0){ CorrectBits[1][i] = RealAs[i].substring(RealAs[i].length-CorrectBits[1][i].length,RealAs[i].length); } CorrectBits[2][i] = CorrectBits[0][i] + ' ... ' + CorrectBits[1][i]; CorrectBits[3][i] = CorrectBits[0][i] + RealAs[i].charAt(CorrectBits[0][i].length); if (CorrectBits[3][i].charAt(CorrectBits[3][i].length-1) == ' '){ CorrectBits[3][i] += RealAs[i].charAt(CorrectBits[3][i].length); } CorrectBits[3][i] += '...' } var LongestCorrect = FindLongest(CorrectBits[2]); if (CorrectBits[2][LongestCorrect].length > 5){ Output = ThisMuchIsCorrect + '
' + CorrectBits[2][LongestCorrect]; } else{ if (ShowHint == false){ Output = IncorrectResponse; } } //Include words found in the answer var FoundWords = CheckWords(Guess, CorrectAs[LongestCorrect]); if (FoundWords.length > 0){ Output += '
' + TheseWordsAppear + FoundWords; } if (ShowHint == true){ Output += '
' + GiveHint + CorrectBits[3][LongestCorrect]; } WriteFeedback(Output); //Put the focus back in the box if (FocusBoxes==true){ eval('BottomFrame.document.QForm' + (QNum) + '.Guess').focus(); } } } function ShowAnswers(QNum){ //If the question isn't done, mark it as done. Score will be 0; Status[QNum][0] = 1; Status[QNum][1] = -1; Status[QNum][2] = -1; //Get the correct answers and put them into a string var Output = TheseCorrect + '
'; Output += I[QNum][1][0][0] + '
'; //Add the current score Output += YourScoreIs + ' ' + CalculateScore() + '%. '; WriteFeedback(Output); return true; } function ShowReading(){ if (ReadingFrame != null){ if (ReadingURL.length > 0){ ReadingFrame.location.href=ReadingURL; } else{ ReadingFrame.document.clear(); ReadingFrame.document.open(); ReadingFrame.document.write(ReadingText); ReadingFrame.document.close(); } } } function Blank(){ return ' �Half-Baked Software. Loading...

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'; } //--> //]]>

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