Unit 5 1. What prevented (prevention) you from joining us last night?
2. They are busy doing scientific (scientist) experiments.
3. Acting before thinking always results (result) in failure.
4. The production (produce) of computers has doubled in the last few weeks.
5. What is the latest development (develop)?
6. When and where will it suit your convenience (convenient) for our next meeting?
7. This lake supplies (supply) the whole town with water.
8. Good nutrition (nutritional) is essential for growing children.
1.Louis Brail didn’t give up studying ___B_____ he became blind by accident at the age of
three. A. as though B. even though() C. even D. if
2. The wound isn’t serious, but it may ___A_____ some discomfort.
A. cause
B. result from
C. affect
D. led to
3. A healthy diet creates a body ____B____ to disease.
A. insistent
B. resistant
C. rejective
D. infective
4. When he came for the interview, Tom felt ___A_____ at first, but soon calmed down.
A. nervous
B. exciting
C. curious
D. anxiously
5. The flowers ___C____ sweet. B. were smelt C. smelt D. smells
6. I made an __D______ mistake in my speech.
A. embarrassed
B. embarrassment
C. embarrass
D. embarrassing
7. Jim was made ___B_____ very hard. A. work B. to work C. working
8. This big stone ___A_____ at least a ton.
A. weighs
B. is weighed
C. had weighed
D. had been weighed
1.是否克隆人类是个道德问题而不是技术问题。

(clone)
Whether to clone human beings is a moral question rather than a technical one.
2.做这项实验需要很大的耐心。

(patience)
You need great patience to do this experiment. /
It requires great patience to do this experiment.
3.转基因食物应该贴上标签。

(label) Genetically modified foods should be labeled.
4.基因研究能够帮助人类预防某些疾病。

(genetic research)
Genetic research could help human beings prevent some diseases.
5 他们的研究项目遇到了麻烦。

(get into trouble) Their research project got into trouble.
1。