21、Here are two letters to George and his replies．

1．Alice is worrying about _______

A．her friends         B．her marks        C．her height        D．her weight

2．Bob should_______ according to George's letter．

A．take more exercise                                     B．talk to his friends

C．join a basketball team                            D．learn some French

3．George advises Alice to talk to _______for help．

A．her mother         B．her teacher         C．Bob's teacher       D．Bob's friends

20、The population of the Earth is growing faster．It is important that we look after the Earth．We need it!

The Earth gives us a lot of things．We also give the Earth a lot，but some of the things are not good．

In nature，when something dies，other animals and plants get food from it．Every animal or plant gives food for other animals or plants．However，animals can't get food from many of the things that we' give' the Earth．Animals and plants can't eat metal，plastic and glass．

These things，will stay in the ground for many，many years．

Some rubbish is very dangerous for plants，and animals．In some places，many animals live together．One animal makes food for many more animals．If we put rubbish and chemicals in the water，the plankton（浮游生物） can die．If there isn't any plankton，many animals have nothing to eat．

So what can we do? Don't leave any rubbish in the countryside! Don't make so much rubbish!

1．The Earth gives us _________

A．food               B．rubbish            C．chemicals        D．pollution

2．When something dies in nature，___________

A．water and grass are polluted                B．plastic and wood become food

C．other animals and plants get food                    D．metal and glass stay in the ground

3．We must __________ to look after the Earth．

A．put metal in the ground                    B．use more wood

C．keep frogs in the water                    D．make less rubbish

19、Many textbooks are not written in the kind of English that we speak，every day．In fact，sometimes the reading is so difficult that it almost seems like a foreign language．In a way，it is the language of science．You should not expect to be able to read a difficult science passage the same way you read an interesting story，you should not expect to read it easily and all at once．Instead，you may have to read it several times through，catching on the meaning of difficult words，going back over difficult sentences，and finally putting the whole thing together．Do not be discouraged if the whole passage doesn't make sense to you at first．You  need to pick it apart patiently until you can understand it．

These are the steps to follow when you' are reading something difficult:

1．Start to read normally until you run into a sentence that doesn't make sense to you．

2．When a sentence doesn't make sense，go back and read it again more slowly．

3．Look for any words you don't know in the sentence．Try to understand their meanings using word parts and context clues（上下文線索）．If necessary，look them up in the dictionary．

4．Look at the next few sentences to see if they explain more about the sentence you are working on．Do not read very much farther ahead until you understand what is being said．

5．Finally，read the sentence again．Try to put it into simpler words．

6．Read through the passage once．Try to understand all the hard parts well．Then read the whole passage once more at a usual speed．This helps you to put all ideas together．

The steps sound a lot harder than they are．It is really just the normal way good readers understand anything that is difficult to read．After you have done the best you can this way，you should always feel free to ask for help from your teacher，if you have one．

1．The underlined phrase" run into" means__________

A．work out         B．come across      C．look into         D．pass by

2．From the passage，we can know _________

A．we should look up new words before reading

B．it is sometimes difficult to read a science passage

C．the six steps are helpful in learning spoken English

D．interesting stories help readers to improve their English

3．The passage m mainly about _________

A．steps of studying science                     B．difficulties in reading science

C．ways of reading science passages                   D．researches on science and English

18、In the West，some people believe that personality can be predicted according to the time of the year the person was born．From China comes the belief that the year of birth influences one's personality．In the past century，a new belief has arisen : the idea that personality is related to one's ABO blood type．People with blood type A，for example，are considered more likely to be serious，hard-working，and quiet，while people with blood type O are likely to be popular and outgoing，yet often unable to finish what they start．Though this belief continues to be strong，some people question whether it is true．

The blood-type personality theory （理論） started in Japan in 1927 when Furukawa Takeji noticed personality similarities and differences among his workers．The idea soon went out of fashion，but was brought back by a Japanese television host named Toshitaka Nomi in the 1970s．The belief is still strong in Japan and is increasingly popular in neighboring countries．Some young Koreans have taken to the theory．A recent study showed 76 percent of Koreans aged between 13 and 64 believing in the blood-type personality connection．Though most Asians might believe in the blood-type theory，for many it seems harmless and not something to be taken too seriously．

There is also the possibility that people are influenced to change their personality to match the expected stereotypes （思維定式）  A survey of studies made in Japan over a 10-year period found that while in the 1970s there was no relationship between blood type and personality，later studies in the 1980s found that the relationship increased a little．Researchers concluded that as the belief in the stereotypes increases，people may be changing their personality to follow the blood-type theory．

Is the belief true? The scientists in Asia largely dismiss the belief as a modern-day superstition（迷信）．Most studies have failed to find any strong connection between blood and personality．Generally，scientists warn against making predictions or important decisions based on this questionable theory．

1．The writer uses blood type A and O as an example to explain _________

A．the difference between the two blood types

B．the relationship between the two blood types

C．the influence of blood type on one's behavior

D．the connection between personality and blood type

2．What does the underlined sentence in Paragraph 2 mean?

A．It was lightly believed．                    B．It was brought to them．

C．They liked and accepted it．                  D．They stole the idea from others．

3．Which of the following is true according to the passage?

A．Most scientists in Asia don't believe in the theory，

B．The blood-type theory began in Japan in the 1970s．

C．The blood-type p，personality theory is about blood type．

D．People don't change their personality to match the theory．

4．What is the best title for the passage?

A．Is the blood-type theory popular?             B．Is the personality changeable?

C．Is it in your blood?                        D．Is it in your mind?

15、Tom and Mike are good friends，________often help each other．

A．They                     B．Them             C．Their            D．Theirs

14、Tom will call me as soon as he  ________home．

A．gets            B．has got              C．got            D．will get

13、Some volunteers from Beijing arrived in Shanghai ________April 29 to work for the World Expo．

A．on                B．a(chǎn)t                 C．of                D．to

12、The reading room ________ very quiet．I enjoy reading books there．

A．a(chǎn)m                B．is                  C．a(chǎn)re                 D．be