1 The Hubble failed to send us satisfactory pictures because _______.

a. the cost of sending satisfactory pictures was terrible

b. there was a problem with its main mirror

c. it was a long time since it was launched into space

d. it was high above the earth's atmosphere

answer: b 原文

2 The Hubble telescope ______.

a. will tell us a great deal about the universe

b. cost a lot but was almost worthless

c. will measure the size of the earth

d. requires constant care from the astronauts

answer : a

constant n.[数、物]常数, 恒量 adj.不变的, 持续的, 坚决的

5 A robot-arm will hold the telescope ________the astronauts to repair it.

a. for b.so that c. so long as d.which

answer : a 原文

for sb to do sth基本结构

so that+句子

so long as+句子 : 表示只要

which + 句子

11 The main mirror of the Hubble _______.

a. had problems b. was distant

c. was the clearest d. requires repairs

had problems 有问题

reauires repairs需要修理

there was a problem with its main mirror.

what's the trouble with you?

problem with sth (习惯用法) 如: There was a problem with its main mirror.

Answer:D