1 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Over the last 100 years, many dinosaur egg fossils(化石)     1    (find), but finding one with a well-preserved embryo(胚胎) inside is extremely rare. A dinosaur embryo     2    (date) back to 66 million years ago was recently discovered in Ganzhou, Jiangxi Province. The    3    (perfect) preserved fossil is helping researchers understand the link between modern birds and their dinosaur ancestors.

The egg,     4    was named “Baby Yingliang”, is placed in the Yingliang Stone Nature History Museum in Fujian Province. The creature     5    (measure) 27 centimeters from head to tail, and it lies inside a 17-centimeter-long egg. Its position within the egg indicates that these dinosaurs developed     6    birdlike position close to hatching, according to the study published in the journal iScience in 2021. 

Paleontologists believe it belongs to a toothless dinosaur     7    (call) Oviraptor. They had varied beaks(喙) and body sizes,     8    they can adopt a wide range of diets. Team member Steve Brusatte from the University of Edinburgh, Scotland, told China Daily that this little dinosaur looks just like a baby bird in its egg, providing more evidence that many features of today’s birds first evolved in their ancestors.

Dinosaur embryos are some of the rarest fossils and most of them are incomplete with the bones dislocated. The embryo is preserved     9    great condition and helps us answer many questions about dinosaurs’     10    (grow).

2 . One billion people in the world are short of water. How can this problem be solved. Some suggestions have been to desalinate ocean water or to build enormous water pipelines from areas where water is abundant. (Suggestions such as these prove extremely expensive when they are actually used.) One possibility that scientists are considering is pulling icebergs from either the North Pole or the South Pole to parts of the world with a water shortage. Although many questions must be answered before such a project could be tried, moving icebergs seems a reasonable possibility in the future.

Engineers, mathematicians, and glaciologists from a dozen countries have been considering the iceberg as a future source of water. Saudi Arabia is particularly interested in this project because it has a great water shortage. Scientists estimate that it would take 128 days to transport a large iceberg (about 1/2 square mile) to Saudi Arabia. Yet the iceberg would be completely melted by the 104th day. Therefore, insulation would be essential, but how to insulate the iceberg remains an unsolved problem.

The problems in transporting an iceberg are numerous. The first problem is choosing the iceberg to pull. The icebergs that form in the North Pole are quite difficult to handle because of their shape. Only a small portion extends above the water — most of the iceberg is below the surface, which would make it difficult to pull. South Pole icebergs, on the other hand, are flat and float like table tops. Thus they would be much easier to move.

How can a 200-million-ton iceberg be moved. No ship is strong enough to pull such enormous weight through the water. Perhaps several ships could be used. Attaching ropes to an iceberg this size is also an enormous problem. Engineers think that large nails or long metal rods could be driven into the ice. What would happen if the iceberg splits into several pieces during the pulling. Even if an iceberg with very few cracks were chosen, how could it be pulled through stormy waters. Furthermore, once the iceberg reached its destination, very few ports would be deep enough to store it.

All of these problems must be solved before icebergs can become a reasonable source of water. Yet scientists estimate that it will be possible to transport them in the near future. Each year, enough icebergs form to supply the whole world with fresh water for a full year. In addition, icebergs are free and nonpolluting. As a solution to the world’s water problems, icebergs may be a workable possibility.

1. What is a problem in transporting iceberg?

A．The size of the iceberg.

B．The colour of the iceberg.

C．The salt in the iceberg.

D．The movement of air and water.

2. What is the author’ attitude towards transporting iceberg?

A．Pessimistic.	B．Objective.
C．Optimistic.	D．Unconcerned.

3. What does the last paragraph mainly tell us?

A．It is hard to use iceberg.	B．Iceberg are a good choice.
C．There are problems with iceberg.	D．Man finds no other ways to solve water shortage.

4. What can be a suitable title for the text?

A．Shortage of water.	B．Icebergs for water.
C．Scientists and icebergs.	D．Iceberg—scientists headache.