写作训练

请用定语从句将下面的语句连成一个句子。

Rollerblading is seen as a quick way of getting around to teenagers． They often take unnecessary risks in traffic．

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写作训练

请用定语从句将下面的语句连成一个句子。

The American space shuttle can be used again and again． It has heat-proof tiles to allow it to re-enter the earth’s atmosphere safely．

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写作训练

请用定语从句将下面的语句连成一个句子。

The hot air balloon was designed by the Montgolfier brothers． Its first flight was made in 1783．

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根据短文的内容，用适当的词语填空，首字母已给出。

　　In 1846 an Irish immigrant in New York named Alexander Stewart opened a business called the Marble Dry-Goods Palaces． By doing so, he gave the world something completely new－the department store． Before this , no one (1)h ________tried to bring together such a wide range of goods (2)u ________a single roof． The business did very (3)w ________． It expanded rapidly and soon had a staff of two thousand． For Stewart even that was not enough , (4)h________． In 1862 he moved to an eight-storey (5)b ________nearby, (6)w________ he renamed A．T． Stewart's Cast-Iron Palace． It was , (7)a________ for many years would remain , the largest shop in the world．

　　Others followed Stewart’s examples and soon there were stores (8)l________ his in many major cities in the United States． We don’t (9)k________ when people started calling them department stores． The expression wasn't used in print (10)u________ 1893 , when it appeared in Harper’s magazine, but the way that it was used there (11)m________ it clear that it was already widely understood．

　　(12)W________ is certain is that department stores completely changed the shopping experience for millions of people． They offered not only an enormous range of goods , (13)b________also levels of comfort, luxury and excitement previously unknown to customers． Almost from the start they had restaurants , toilets and many (14)o________ facilities , so (15)t________ was no need to go elsewhere for anything．

用横线后所给词语的适当词形填空。

　　Computers have had the ability (able) to play chess for many years now, and their 1 ________(perform) in games against the best players in the world has shown steady 2 ________(improve)． However, it will be years before the designers of computer game machines can beat their 3________(big) challenge yet-the ancient board game called Go． The playing area is 4 ________(consider) larger than in chess and there are far more pieces, so that the 5 ________(combine) of moves is almost 6 ________(end)． The game involves planning so many moves ahead that even the 7________(impress) calculations of the fastest modem computers are 8 ________(sufficient) to dealwith the problems of the game．

　　In a recent 9 ________(compete) for computer Go machines, the best machine beat all its computer rivals, but lost 10 ________(heavy) to three young schoolchildren, so there is obviously still a lot of work to do!

写作训练

根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。

I haven’t been to a tennis match for a long time．

It’s a long time since ________________________________________a tennis match．

写作训练

根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。

Why don't you join a tennis club?

If I were you, ________________________________________join a tennis club．

写作训练

根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。

If you don’t play every week , you won’t improve your tennis．

You won’t improve your tennis unless ________________________________every week．

写作训练

根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。

There are only a few squash courts in this town．

There aren't very ________________________________squash courts in this town．

写作训练

根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。

It’s too cold to play tennis．

It isn't warm ________________________________to play tennis．