1. {Although# man's [interest] (in space flight) _began_ many centuries ago,} [men] _ were_ not immediately successful (in their attempts).
2. {When# [people] (of the ancient world) _challenged_ their knowledge (of the world) and _attempted_ flight,} their [failures] _were recorded_ (by Persian, Greek, Hindu, and Chinese legends).
3. {Because# most [legends] _were_ (about lights) (on earth),} the Greek [story] (about a man's trip) (to the moon) (in A.D. 160) _brought_ a new dimension (to human dreams).
4. (In 1500), a Chinese [scholar] actually _attempted_ space flight {when# [he] _built_ a rocket chair and _lit_ gunpowder (under it) (in the hope) (of flying) (to the moon).}
5. {After# many [people] (in the twentieth century) _had read_ The First Men in the Moon (by H. G. Wells) and From the Earth to the Moon (by Jules Verne),} [dreams] (of a manned flight) (to the moon) again _became_ popular.
1. Today, [Konstantin], [Tsiolkovski], [Robert Goddard], and [Hermann Oberth] _are recognized_ (as space flight pioneers) {because# their [ideas] _were_ basic (to rocket design and space travel).}
2. {Although# [Tsiolkovski] _wrote_ (about liquid propellants, life-support systems, and artificial satellites),} [he] _received_ little recognition (outside of the USSR) (during his lifetime).
3. [Goddard] _was_ responsible (for much) (of the earliest experimentation and research) (in rocketry) (in the United States) {after# [he] _launched_ the world's first liquid propellant rocket (in 1926).}
4. {Although# Oberth's [work] _paralleled_ the research (of Tsiolkovski and Goddard),} their [writings] _were_ unknown (to him) {until his own [calculations] _were_ nearly complete}.
5. {If# these three [pioneers] _had_ not _provided_ this theoretical knowledge,} modern [rocketry] and space [ravel] _might be_ different today.
1. {Although# not [everyone] _accepts_ the theory,} [immigrants] (from central and east Asia) _were_ probably the first inhabitants (of North America), and* their [crossing] (from Siberia to Alaska ) _brought_ the first humans (to the continent).
2. {Because# edible [vegetation] _could_ not _exist_ (on the Arctic bridge) (between Siberia and Alaska,)} many [scholars] _believe_ {that these [pioneers] _were_ probably meat and fish eaters}; (in addition), [they] probably _used_ animal fur (for warmth) (in the harsh winter climate) (of the area).
3. These [settlers], {[who]# _are_ now _called_ Indians,} _traveled_ (through North America) (to Central and South America) (by 8000 B.C.); several Indian [tribes] and Indian [languages] _exist_ today (because of these early immigrants) (from Asia).
[Go to class at cvc.blackboard.com] [marsha_chan@wvmccd.cc.ca.us]
Marsha Chan
English as a Second Language Department
Mission College
3000 Mission College Blvd.
Santa Clara, CA 95054-1897
(408) 855-5314