d as being suitable for a particular purpose or as being likely to do or be a particular thing

astronaut

n. a person trained to travel in a spacecraft 宇航员

visitation

n. the act of visiting; visit

remote

a. distant in space or time

inexpensive

a. that which does not cost much; reasonable in price

anthropocentric

a. regarding men as the central fact, and his existence and welfare as the ultimate aim, of the universe 以人类为宇宙中心的

electromagnetic

a. of magnetic force produced by an electric current 电磁的

spectrum

n. a set of bands of colored light in the order of their wavelengths into which a beam of light may be separated; a range of any of various kinds of waves 光谱；波谱

ray

n. a beam of light, heat, electricity or some other form of energy

gamma ray (usu. pl.)

a beam of light of short wavelength which goes through solid objects y射线，光（量）子

peer

n. an equal in rank, quality or worth

backward

a. late in development

observatory

n. a place from which scientists watch stars and other heavenly bodies 天文台

princess

n. the daughter of a king or queen; a prince's wife 公主；王妃

optimistic

a. tending to see the bright side of things

imply

vt. express, show or mean indirectly; suggest

stellar

a. of or concerning stars

muster

vt. gather or collect; summon

respectability

n. the quality of being respectable

mars

n. 火星

mission

n. an important task, esp. one that involves traveling abroad

burgeon

vi. bud; grow or develop rapidly

lately

ad. not long ago; recently

manifestation

n. sign of the existence or presence of a person, object or quality

manifest vt.

skeptic

n. person who questions the truth of theories or apparent facts

skeptical

a.

interstellar

n. (placed or moving) between the stars

spacecraft

n. a vehicle used for traveling in outer space 宇宙飞船

ply

v. make regular journeys (between); sail

conveniently

ad. with ease

convenient

a.

colony

n. the area settled by a group of people who leave their country to live in another place 殖民地

premature

a. appearing, happening, or done before the usual, expected or correct time

surmise

vt. guess; suppose

detect

vt. notice or find the presence of

international

a. of or between two or more nations

traffic

n. vehicles, people, ships or aircraft moving along a route

incompletely

ad. not completely; partially

modulation

n. variation of the amplitude, frequency, or phase of the carrier wave in accordance with the sound wave or other signals being sent 调制

pulsar

n. an astronomical source or powerful radio waves emitted in short, intense bursts or pulses at very precise intervals 脉冲星

quasar

n. a heavenly object which emits powerful blue light and radio waves; quasi-stellar objects 类星体

galactic

a. of or having to do with the milky way or with other galaxies

ethic

n. system of moral behavior 伦理

noninterference

n. the practice of not taking part in or trying to influence the affairs of other people, countries, etc.

appropriate

a. correct or suitable for a particular situation or occasion

immortality

n. the state of being immortal; never-ending life or endless fame 不朽，永存；不灭的声望

motivation

n. need; desire 动因；动力

motivate

vt.

gallivant

vi. go around amusing oneself; wander

adolescent

a. growing up from childhood to adulthood; immature

assurance

n. belief in one's own ability; confidence

brim

vi. be full to the brim

amenable

a. that can be tested (by)

verification

n. proof by evidence; confirmation 证明；核实

extensive

a. large in amount, area or range

organism

n. a living being

phrases & expressions

if any

possibly none

seek out

find (sb. or sth.) by looking hard

might very well

be (very) likely to

to date

until today; yet

band in hand with

together with

be dedicated to

be devoted to; be intended to be used for

along with

together with

depend on

following directly or logically from; turn on

so as to

in order to

in a position to

able to

brim over with

have an abundance of

cry out for

need badly

proper names

carl sagan

卡尔.萨根

greenbank

格林班克

west virginia

西弗吉尼亚州

frank drake

弗兰克.德雷克

cornell university

康乃尔大学

the land of oz

奥兹国

the soviet union

苏联

the amazon

亚马逊河

unit four

text

as a black boy growing up in america in the early 1900s, richard wright knew well the meaning of racial prejudice. he was not allowed to play in a park or borrow books from a library. while working as an office boy in a bank, though, he found a way int