国家开放大学-开放英语4

出自:国家开放大学-开放英语4

If we do not promote renewable energy, the Earth’s natural resources will be used up soon. Unless _________________ , the Earth’s natural resources will be used up soon.

If the dumping of waste electrical goods is not stopped, people’s health will suffer. Unless __________________ , people’s health will suffer.

If more green cars are not produced, air pollution will increase. Unless ___________________ , air pollution will increase.

Rivers will be safer if factories are banned from polluting them. Rivers will be less safe unless________________________

It is said that dolphins are very intelligent. __________________ dolphins are very intelligent.

It is reported by scientists that dolphins communicate with each other by little noises. __________________ dolphins communicate with each other by little noises.

It is known that dolphins can help drowning fishermen.___________________ dolphins can help drowning fishermen.

It is understood by fishermen that dolphins are their friends_________________ dolphins are their friends.

It is considered by many that we should protect dolphins._________________ we should protect dolphins.

It is thought that sperm whales can dive very deep indeed._________________ sperm whales can dive very deep indeed.

CETACEANS: FACT FILE There are over 80 species of whales, dolphins and porpoises, (1)_____ collectively as ‘cetaceans’, throughout the world. They come in all shapes and sizes. Here are some facts and figures about these incredible animals. The blue whale is (2)____ animal on Earth. The average adult length is 25m for males and 26.2m for females, (3)____ body weights of 90-120 tonnes. Hector.s dolphin is the world.s shortest cetacean. They may be only 1.2m long when fully (4)____ . A blue whale eats up to 4 tonnes of krill daily. This is equivalent (5)____ a fully grown African elephant every day. The sperm whale (6)____ dive deeper than any other cetacean. They have been known to dive as deep as 2000m. One bowhead whale is reported to (7)____ 130 years old when it died. The sperm whale has the world.s heaviest brain (8)____ can weigh up to 9.2kg. This compares (9)____ the average 1.4kg for the brain of an adult human. The baiji dolphin, or Chinese river dolphin, is the rarest dolphin in the world and is reported to be endangered. It lives in the Yangtze River in China. Conservation measures (10)____ by the Chinese to save it. 1. A. know B. to know C. knowing D. known 2. A. heavy and long B. the heaviest and longest C. the most heavy and long D. heavier and longer 3. A. whose B. with C. have D. which 4. A. grown B. growing C. to grow D. grow 5. A. to eat B. about eating C. to eating D. as eating 6. A. believed to B. is believed to C. was believed to D. has believed to 7. A. have been B. be C. being D. having been 8. A. who B. what C. which D. whom 9. A. to B. as C. with D. for 10. A. are taking B. are taken C. were taken D. are being taken

The surname .Smith. is very c _____ (普通的) in Britain.

They work as a group - no one person is allowed to d _______ . (支配地位).

He works in a l _______ (主要地) male company.

Space travel is one of the wonders of modern s______ (科学).

He wants to be a s ________ (科学家) in the future.

English is w______ (广泛地) used in the world.

S _________ (统计) show that women live longer than men.

I want to buy a b_________ (两种语言的) dictionary.

In some countries, a young man must join the army when he becomes of a m _______ (军事的) age.

Language will become the main c ________ (联系者) between non-native speakers of those languages.

If you _______ that something is true, you imagine that it is true, sometimes wrongly.

If something ____ , it becomes less in quantity, importance, or strength.

The ____ of a particular thing is the fact that they are more important than other things.

The ____ of something is the event of its coming into existence.

If you _____ something, you move it.

Your ____ country or area is the country or area where you were born and brought up.

If something has ____ , it has the most power or importance among a group of things.

You use ____ to say what is mainly true in a particular situation.

If something happens____ , it exists or happens throughout the world.

If you say that something____ , you mean that you can no longer see them.

He took ____ my job when I was on holiday. 选择一项： a. on b. over c. off d. after

The government is spending ____ on railways. 选择一项： a. millions of dollars b. million of dollars c. millions of dollar d. million dollars

Schools ____ an important role in society. 选择一项： a. make b. do c. take d. play

This is a ___ dictionary. 选择一项： a. one lingual b. single lingual c. monolingual d. sololigual

In our office, the women ____ the men 3 to 1. 选择一项： a. overnumber b. outnumber c. offnumber d. pastnumber

They are____ to come - it.s nearly ten o.clock. 选择一项： a. impossible b. unlikely c. maybe not d. improbable

It.s a very beautiful film, but it lacks ____. 选择一项： a. contents b. the content c. content d. a content

Can I connect my printer ___ your computer? 选择一项： a. for b. on c. to d. in

Have you been taking much ____? 选择一项： a. drug b. pill c. tablet d. medicine

I am going to visit you. Can you tell me the ___ of your house? 选择一项： a. direction b. location c. place d. venue

Millions of people are said ____ (learn) English from pop music now. 1. to be learning

Over one billion people throughout the world are said ____ (speak) English.

Approximately two billion people are said ____ (speak) English as a foreign language.

Two-thirds of scientists are said 回答 (read) scientific texts in English.

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