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Diffstat (limited to 'usr.bin/learn/lib/morefiles/L6.1d')
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diff --git a/usr.bin/learn/lib/morefiles/L6.1d b/usr.bin/learn/lib/morefiles/L6.1d new file mode 100644 index 00000000000..47446b54446 --- /dev/null +++ b/usr.bin/learn/lib/morefiles/L6.1d @@ -0,0 +1,56 @@ +#print +How many of the lines in the files "bio*" and "chem*" +contain the letters "the"? Type "answer N", where +N is the number of lines. +#create bio1 + Roughly speaking, your eye is made of three balls, or layers, +fitted tightly one inside the other. the tough white outermost +layer's function is to protect the others. the middle layer gives +the front of your eye its brown, gray, or blue color. The inside +of this layer is dark and full of tiny blood vessels. The innermost +layer, called the retina, is made of very special nerve cells that +are sensitive to light and color. A nerve cord connects the retina +of each eye to your brain. + The front of your eye's two outer layers (the cornea) is clear, +or open, to let light enter. +#create bio2 + We do not know when life began on the earth, and it seems likely +that the answer to this question will remain forever hidden from us. +What we do know is that it was some 500 million years ago when the +plants and animals of early geologic history had reached a stage of +development where they produced hard parts capable of being preserved +as fossils. + At this distant date there seemingly was no land life; all life +was in the sea. Moreover, there were no vertebrates, or backboned +animals, living -- at least none of sufficient complexity that they +left hard structures to be preserved in the form of fossils. +#create chema + The baker said, "Now I shall put just the right amounts of water and +yeast with the flour that is in the mixer. Flour, water, and yeast +together make the sponge. Making sponge is the first step in making +bread." + The baker closed the mixer. Inside the machine, the flour and +yeast and water went around and around until they were well mixed. +Then the baker opened the mixer and the sponge dropped into a greased +tub called a trough. + The baker pushed the trough into a warm room to let the sponge +rise. It looked like dough, but it did not as yet have everything +in it. +#create chemb + Wash the blackboard. Watch it dry. The water goes into the air. +When water goes into the air it evaporates. + Tie a damp cloth to one end of a stick. Tie a bottle to the +other end. Put water in the bottle until the stick is level. Watch +the stick for a few minutes. It does not stay level. + Water goes into the air when it evaporates. It changes into +water vapor. You cannot see water vapor, but it is in the air all +around you. + Cut a hold in the bottom of a cardboard box. Hold the box +against a cold window and blow into the hole. +#copyin +#user +#uncopyin +#match 30 +#log +#next +6.1e |