4. As is the boy so will be the man. 5. The waves of conversation roll and shape our thoughts as the surf rolls and shapes the pebbles on the shore.
The +adverb clause+ may express +real cause+.
6. The ground is wet because it has rained.
ground | is \ wet
==========|=============
\The | `
`
` because
`
it | ` has rained
——|———————-
+Explanation+.—Because, being a mere conjunction, stands on a line wholly dotted.
7. Slang is always vulgar, as it is an affected way of talking. 8. We keep the pores of the skin open, for through them the blood throws off its impurities. 9. Since the breath contains poisonous carbonic acid, wise people ventilate their sleeping rooms. 10. Sea-bathing is the most healthful kind of washing, as it combines fresh air and vigorous exercise with its other benefits. 11. Wheat is the most valuable of grains because bread is made from its flour.
The +adverb clause+ may express +evidence+.
12. God was angry with the children of Israel, for he overthrew them in the wilderness. 13. Tobacco and the potato are American products, since Raleigh found them here. 14. It rained last night, because the ground is wet this morning. 15. We Americans must all be cuckoos, for we build our homes in the nests of other birds.
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